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  • 1.
    Abadi, Imam
    et al.
    Institut Teknologi Sepuluh Nopember, Indonesia.
    Hardiana, Tiara Oktavia
    Institut Teknologi Sepuluh Nopember, Indonesia.
    Imron, Chairul
    Institut Teknologi Sepuluh Nopember, Indonesia.
    Fitriyanah, Dwi Nur
    Institut Teknologi Sepuluh Nopember, Indonesia.
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Abdullah, Kamaruddin
    Darma Persada University, Indonesia.
    Design of Adaptive Neuro-Fuzzy Inference Control Based One-Axis Solar Tracker on Battery Charging System2020In: E3S Web of Conferences, EDP Sciences , 2020, p. 1-15, article id 00015Conference paper (Refereed)
    Abstract [en]

    The photovoltaic (PV) panel can produce electrical energy that is very environmentally friendly and easy to use. The use of PV panels is suitable for supplying peak loads or at night using batteries as energy storage. However, the battery needs to manage for control, and the battery can last long. The solution to battery management problems is through research about the battery charging system. The DC-DC converter used is the Single Ended Primary Inductance Converter (SEPIC) type. Voltage Control of the battery charging using Adaptive Neuro-Fuzzy Inference System (ANFIS). In the simulation of bright conditions, ANFIS controls can track the charging point set point and obtain a voltage response with a rise time of 0.0028 s, a maximum overshoot of 0.027 %, a peak time of 0.008 s, and a settling time of 0.0193 s. When charging a solar tracker, PV battery gets a 0.25 % increase compared to a fixed PV panel. PV solar tracker can follow the direction of the sun's position. The irradiation value and maximum temperature affect the input voltage and input current that enters the converter. 

  • 2.
    Abadi, Imam
    et al.
    Institut Teknologi Sepuluh Nopember, Indonesia.
    Uyuniyah, Qurrotul
    Institut Teknologi Sepuluh Nopember, Indonesia.
    Fitriyanah, Dwi Nur
    Institut Teknologi Sepuluh Nopember, Indonesia.
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Abdullah, Kamaruddin
    Darma Persada University, Indonesia.
    Performance Study of Maximum Power Point Tracking (MPPT) Based on Type-2 Fuzzy Logic Controller on Active Dual Axis Solar Tracker2020In: E3S Web of Conferences, EDP Sciences , 2020, p. 1-16, article id 00016Conference paper (Refereed)
    Abstract [en]

    World energy consumption increases with time, so that occur an energy imbalance. Many breakthroughs have developed to utilize renewable energy. The photovoltaic system is one of the easy-to-use renewable energies. The power conversion from PV fixed is still low, so the PV system is designed using the active dual-axis solar tracker. The PV tracker position can be adjusted to change the sun position to get maximum efficiency. The active dual-axis solar tracker system is integrated with the maximum power point tracking (MPPT) algorithm to keep PV operating at a maximum power point even though input variations change. The active dual-axis solar tracker system integrated with the maximum power point tracking (MPPT) algorithm to keep PV operating at a maximum power point even though input variations change. Tracking test simulation had done by comparing the output power of a fixed PV system with the active dual-axis solar tracker. Type-2 fuzzy logic based MPPT successfully increased the average output power by 10.48 % with the highest increase of 17.48 % obtained at 15:00 West Indonesia Time (GMT+7). The difference in power from a fixed PV system with the active dual-axis solar tracker of 36.08 W is from the output power worth 206.3 to 242.4 W. 

  • 3.
    Alam, Sultan
    et al.
    Univ Malakand, Dept Chem, Chakdara Dir Lower 18800, Pakistan..
    Ullah, Barkat
    Univ Malakand, Dept Chem, Chakdara Dir Lower 18800, Pakistan..
    Khan, Muhammad Sufaid
    Univ Malakand, Dept Chem, Chakdara Dir Lower 18800, Pakistan..
    Rahman, Najeeb ur
    Univ Malakand, Dept Chem, Chakdara Dir Lower 18800, Pakistan..
    Khan, Luqman
    Univ Malakand, Dept Chem, Chakdara Dir Lower 18800, Pakistan.;Univ Peshawar, Natl Ctr Excellence Phys Chem NCE, Peshawar 25000, Pakistan..
    Shah, Luqman Ali
    Zekker, Ivar
    Univ Tartu, Inst Chem, 14a Ravila St, EE-50411 Tartu, Estonia..
    Burlakovs, Juris
    Estonian Univ Life Sci, Inst Forestry & Rural Engn, 5 Kreutzwaldi St, EE-51014 Tartu, Estonia..
    Kallistova, Anna
    Russian Acad Sci, Winogradsky Inst Microbiol, Biotechnol Res Ctr, Leninsky Prospect,33,Build 2, Moscow 119071, Russia..
    Pimenov, Nikolai
    Russian Acad Sci, Winogradsky Inst Microbiol, Biotechnol Res Ctr, Leninsky Prospect,33,Build 2, Moscow 119071, Russia..
    Yandri, Erkata
    East Jakarta Timur, Darma Persadha Univ, Grad Sch Renewable Energy, Jl Taman Malaka, Jakarta 13450, Indonesia..
    Hendroko Setyobudi, Roy
    Univ Muhammadiyah Malang, Dept Agr Sci, Malang 65145, Indonesia..
    Jani, Yahya
    Malmö universitet, Institutionen för Urbana Studier (US), Sweden.
    Zahoor, Muhammad
    Univ Malakand, Dept Biochem, Chakdara Dir Lower 18800, Pakistan..
    Adsorption Kinetics and Isotherm Study of Basic Red 5 on Synthesized Silica Monolith Particles2021In: Water, E-ISSN 2073-4441, Vol. 13, no 20, article id 2803Article in journal (Refereed)
    Abstract [en]

    The Silica monolith particles (SMP) were prepared from Tetra-Methyl-Ortho-Silicate (TMOS) and characterized by Fourier transforms infrared (FTIR), Scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and surface area analyzer. FTIR analysis showed the Si-O stretching confirming SMP formation. SEM analysis provided information about the mean diameter of SMP (1-5 mu m). EDX confirmed the presence of silicon and oxygen in the SMP. Moreover, the calculated surface area for SMP was found to be around 367 m(2)/g, whereas BJH pore size distributed particles were 87.15 along with the total pore volume and pore radius of 0.073 cm(3)/g and 16.627 & ANGS;, respectively. Besides, the removal efficiency was found to be about 96%. Various kinetic equations were used to calculate the adsorption parameters. Overall, the results show that the most appropriate model for the kinetics data was the pseudo-second order kinetics model while the mechanism of adsorption was best explained by the Langmuir isotherm. The highest removal of Basic Red 5 dye after 120 min at 298 K was 576 mg/g. Moreover, the thermodynamics parameters (Enthalpy, Gibb's energy, and Entropy) were also estimated. The & UDelta;H & DEG; (0.995 kJ/mol) value depicted the endothermic nature of the process. The non-spontaneous aspect of the process was evident from the & UDelta;G & DEG; values which were 60.431, 328.93, and 339.5 kJ/mol at 293, 303, and 313 K, respectively. From the high removal efficiency value, it can be concluded that the prepared adsorbent can be a potential adsorbent in the reclamation of dyes from wastewater.</p>

  • 4.
    Ariadi, B. Y.
    et al.
    Department of Agribusiness, University of Muhammadiyah Malang, Indonesia.
    Relawati, R.
    Department of Agribusiness, University of Muhammadiyah Malang, Indonesia.
    Rozaki, Z.
    Department of Agribusiness, University of Muhammadiyah Yogyakarta, Jl. Brawijaya, Kasihan, Bantul, Yogyakarta, Indonesia.
    Rahmawati, N.
    Department of Agribusiness, University of Muhammadiyah Yogyakarta, Jl. Brawijaya, Kasihan, Bantul, Yogyakarta, Indonesia.
    Jani, Yahya
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Al Zarliani, W. O.
    Department of Agribusiness, University of Muhammadiyah Buton, Jl. Betoambari No. 36, Sulawesi Tenggara, Baubau, Indonesia.
    Risk Analysis of Rice Farming at Volcano Semeru Area, Pronojiwo District, Lumajang Regency, Indonesia2024In: BIO Web of Conferences, EDP Sciences , 2024, Vol. 104, article id 00004Conference paper (Refereed)
    Abstract [en]

    This study aimed to analyze the production and financial risks of paddy rice farming in Pronojiwo district, Lumajang Regency, East Java, Indonesia. The research was conducted in March to May 2021, after the case of Semeru eruption in December 2020. The villages sample were Oro-Oro Ombo and Supiturang, the two most affected by the Mount Semeru lava flow. Primary data were obtained from the amount of 95 respondents chosen randomly. The risk of production and financial were analyzed by Coefficient of Variation (CV). Meanwhile, the factors affecting farm risk is analyzed by using regression method. The result of production risk on paddy rice farming in Pronojiwo, Lumajang Regency shows a low risk, namely indicated by CV of 35.38 %. However, the farm income risk is much higher, indicated by CV of 79.08 %. The factors affecting production risk is usage of chemical fertilizer. The increased number of chemical fertilizer will increase production risk of rice farming.

  • 5.
    Basir, A.
    et al.
    University of Muhammadiyah Malang, East Java, Malang, Indonesia.
    Sutawi, S.
    University of Muhammadiyah Malang, East Java, Malang, Indonesia.
    Ariadi, B. Y.
    University of Muhammadiyah Malang, East Java, Malang, Indonesia.
    Tonda, R.
    University of Tribhuwana Tunggadewi, East Java, Malang, Indonesia.
    Ekawati, I.
    University of Wiraraja, East Java, Sumenep, Indonesia.
    Zainudin, Z.
    Widyagama Mahakam University, East Kalimantan, Samarinda, Indonesia.
    Endriani, E.
    Universitas of Lancang Kuning, Pekanbaru, Riau, Indonesia.
    Marhani, M.
    Muhammadiyah University of Palopo, South Sulawesi, Palopo, Indonesia.
    Paridawati, I.
    University of Muhammadiyah Palembang, Palembang, South Sumatera, Indonesia.
    Sapar, S.
    Muhammadiyah University of Palopo, South Sulawesi, Palopo, Indonesia.
    Rosa, I.
    Muhammadiyah University of Palopo, South Sulawesi, Palopo, Indonesia.
    Jani, Yahya
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Khan, W. A.
    Lahore Business School, University of Lahore, Lahore, Punjab, Pakistan.
    Pakarti, T. A.
    University of Brawijaya, East Java, Malang, Indonesia.
    Proficiency in Informatics and Communication Technology Application to Improve Agricultural Counseling Performance in Luwu Regency, Indonesia2023In: E3S Web Conf., EDP Sciences , 2023Conference paper (Refereed)
    Abstract [en]

    Informatics and Communication Technology (ICT) provides relevant agricultural information, which is essential in agricultural development attempts, in timely fashion. Aiming to find out if it is able to improve the efficiency of agricultural counseling agents, this study examined agricultural counseling agents in Luwu Regency, South Sulawesi, Indonesia. As explanatory quantitative research, simple random sampling was applied to respondents of google form questionnaire and the data were analyzed as per Structural Equation Model (SEM) and supported by smart PLS application. The result came out with R2 value of 0.868, representing the agricultural counseling agent's proficiency and ICT application signified agricultural counseling agent's efficiency at 86.8 %. It is therefore conclusive that agricultural counseling agent's efficiency in extension activities relies on both their proficiency and ICT application.

  • 6.
    Burlakovs, J.
    et al.
    University of Latvia, Latvia.
    Vincevica-Gaile, Z.
    University of Latvia, Latvia.
    Bisters, V.
    University of Latvia, Latvia.
    Högland, W.
    Linnaeus University, Sweden.
    Kriipsalu, M.
    Estonian University of Life Sciences, Estonia.
    Zekker, I.
    Tartu University, Estonia.
    Setyobudi, R.H.
    University of Muhammadiyah Malang, Indonesia.
    Jani, Yahya
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Anne, O.
    Klaipeda University.
    Application of Anaerobic Digestion for Biogas and Methane Production from Fresh Beach-Cast Biomass2022In: EAGE GET 2022: Proceedings, 2022, Vol. 2022, p. 1-5Conference paper (Refereed)
    Abstract [en]

    In this research, biogas production potential from beach wrack collected in Riga Gulf (Ragaciems, Jaunķemeri, Bigauņciems) and in coastline of Sweden (Kalmar) was studied using an anaerobic digestion method. Selected beach wrack masses laying ashore and containing macroalgal biomass of common macroalgae types specific to the Baltic Sea were mixed for consolidated samples. Anoxic fermentation of untreated beach wrack was carried out in 16 bioreactors applying a single filling mode at 38 °C. The study revealed that by utilizing beach wrack accumulated ashore as a feedstock for anaerobic digestion methane can be utilized if pretreatment and conditioning of the samples are performed.

    The study was continued for selected brown algae containing biomass tested with three dewatering pretreatment methods: a) keeping in tap water for 24 hours; b) washing with running fresh water for one hour, and c) drying to relatively constant weight. The resulting methane outcome was compared with the data corresponding to raw brown algae. The study confirmed that washing of macroalgal biomass applied as pretreatment prior to anaerobic fermentation avoids inhibition of salts and promotes biomethane production.

  • 7.
    Burlakovs, Juris
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Ferrans, Laura
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Krumins, Janis
    University of Latvia, Latvia.
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Klavins, Maris
    University of Latvia, Latvia.
    Fluorescence Spectroscopy – Applied Tool for Organic Matter Analysis2019In: Goldschmidt Abstracts, 2019, 2019Conference paper (Refereed)
    Abstract [en]

    Large applied projects in various sub-fields of environmental science studied and analyzed properties of organic matter. The “Life-Sure” is as continuation of started work for cost effective bottom sediments treatment where organic matter play important role of sorption of urban contaminants; “CONTRA” - beach wrack studies for advanced value-based bioeconomy development. Another project on Jurassic clay is interesting in discourse on Pleistocene glaciers glaciodynamics. Material from field was tested by 3D fluorescence excitation-emission matrix (EEM) providing “fingerprints” for a single compound or a mixture of fluorescent components. Thus humic macromolecules might be well seen nevertheless structural units have variable effects on the wavelength as well as intensity of fluorescence. It decreases with increasing molecular size of the humic macromolecule. For applied environmental projects this is well non-destructive tool to quantify the decomposition degree of organic matter requiring negligible amount of sample. This important method is valid for both organic matter and humic substances analytics. Chemical nature of humic substances can be correlated to structural information, e.g., functional groups, poly-condensation, aromaticity, dynamic properties related to intermolecular interactions. Acquired data from EEM provided significant input for scientific knowledge and innovation along with other analytical tools. 

  • 8.
    Burlakovs, Juris
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Vincevica-Gaile, Zane
    University of Latvia, Latvia.
    Kriipsalu, Mait
    Estonia university of life sciences, Estonia;University of Latvia, Latvia.
    Klavins, Maris
    University of Latvia, Latvia.
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Setyobudi, Roy Hendroko
    university of Muhammadiyah Malang, Indonesia.
    Bikše, Jānis
    University of Latvia, Latvia.
    Rud, Vasiliy
    Russian Agricultural Academy, Russia.
    Tamm, Toomas
    Estonia university of life sciences, Estonia.
    Environmental Quality of Groundwater in Contaminated Areas—Challenges in Eastern Baltic Region2020In: Water Resources Quality and Management in Baltic Sea Countries / [ed] Abdelazim M. Negm, Martina Zelenáková & Katarzyna Kubiak-Wójcicka, Switzerland: Springer , 2020, p. 59-84Chapter in book (Refereed)
    Abstract [en]

    The lack of water in the future will force society to find more sophisticated solutions for treatment and improvement of groundwater wherever it comes from. Contamination of soil and groundwater is a legacy of modern society, prevention of contaminants spread and secondary water reuse options shall be considered. The aim of the book chapter is to give oversight view on problems and challenges linked to groundwater quality in Eastern Baltic region whilst through case studies explaining the practical problems with groundwater monitoring, remediation and overall environmental quality analysis. The reader will get introduced with case studies in industry levels as credibility of scientific fundamentals is higher when practical solutions are shown. Eastern Baltic countries experience cover contamination problems that are mainly of historic origin due to former Soviet military and industrial policy implementation through decades. Short summaries for each case study are given and main conclusions provided in form of recommendations at the very end of the chapter.

  • 9.
    Burlakovs, Juris
    et al.
    University of Latvia, Latvia.
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Grinfelde, I.
    Latvia University of Life Sciences and Technologies, Latvia;Scientific Laboratory of Forest and Water Resources, Latvia.
    Pilecka, J.
    Latvia University of Life Sciences and Technologies, Latvia;Scientific Laboratory of Forest and Water Resources, Latvia.
    Valujeva, K.
    Latvia University of Life Sciences and Technologies, Latvia;Scientific Laboratory of Forest and Water Resources, Latvia.
    Geophysical aspects of abandoned landfill geomorphological and material properties macro-characterization2020In: International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM, International Multidisciplinary Scientific Geoconference , 2020, p. 551-558Conference paper (Refereed)
    Abstract [en]

    Landfills (dumps) are places where the end of the life cycle of products can be found - useful material is dumped away from the sight creating contaminant flows around. Another problem is huge unexplored potential of resources recycling - we have limited knowledge also on useful elements and materials that are buried. The solution to overcome the limitations that provide remote sensing and traditional geodesy, proximal sensing techniques could be used. “Near surface geophysics” with operation at or just below the soil surface, significantly may contribute to give answers that traditionally are solved only after excavation. Geophysical methods are various, those can be active (i.e. create its own signal) or passive (i.e. register an existing signal); invasive (by inserting devices into the soil) or non-destructive. Some of these methods are static (e.g. a sequence of inserted electrodes), others can be used in a mobile way (e.g. pulled by a quad-bike). In general, their depth of exploration can vary from a few decimetres to some tens of metres. Thus in range of wide geophysical methodology spectrum almost all methods might be of use for unknown dump exploration depending on circumstances. In this paper, the aim is to macro-characterize anthropogenic geomorphological forms for contouring of old buried dumps by use of magnetometry, and geoelectric research methods to provide knowledge on approximate content of the dump. Protonmagnetometer was used in Eastern Latvia to determine unseen on surface dumpsite, buried in forest; induced polarisation and electric resistivity research was done in Southern Sweden for the macro-content analysis of dump hills composed of glass industry residuals and construction waste mixture. Geophysical surveying was performed to support site investigation with respect to landfill-related environmental problems, to enhance the opportunity for contouring of location of material mass and initially evaluate its physical properties. Results have shown good potential of geophysical surveying to spatially characterize landfill masses (location and dimensions) and to identify the internal structure of a landfill site, which already provides valuable information to estimate the landfill mining (material recovery) potential of landfills.

  • 10.
    Burlakovs, Juris
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Kriipsalu, M.
    Estonian Univ Life Sci, Estonia.
    Grinfelde, I.
    Latvia Univ Life Sci & Technol, Latvia.
    Pilecka, J.
    Latvia Univ Life Sci & Technol, Latvia.
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Implementation of new concepts in waste management in tourist metropolitan areas2020In: 2019 9TH INTERNATIONAL CONFERENCE ON ENVIRONMENT SCIENCE AND ENGINEERING (ICESE 2019) / [ed] Sevilla, NPM Quanrud, D, IOP Publishing , 2020, p. 1-10, article id 012017Conference paper (Refereed)
    Abstract [en]

    The urban waste in tourist cities needs comprehensive global research efforts and proceeded action as for metropolitan areas huge impact and load on waste management is generated. Waste management and resource conservation strategies are prepared in state-of-the-art level however implementation and future improvement of the current situation is crucial. Some examples in waste prevention and management for better tourism, waste and resource management are provided in the paper as outcomes from Horizon2020 project "Urban Strategies for Waste Management in Tourist Cities". The policy and tools based on information gathered by scientists, municipal and NGOs experience (e.g. separation of bio-waste in catering industries, "sin-wastes" as from the bars, nightclubs and smoker places, reuse of unnecessary items that can serve for others and many more) are described. In addition, regulatory instruments (e.g. ban of plastic bags, reduction of allowed bio-waste in landfilling), economic instruments (taxes) and voluntary agreements (e.g. deposit systems; cleaning actions by volunteers) might be used to implement and elaborate the situation within environmental management and prevention practices in tourist metropolitan cities. Food waste prevention, beach and littoral management, special practices for festival waste and large amount specific waste generating facilities (e.g., entertainment industry, cruises etc.) are of high importance. The future outlook may be concentrated on digitalizing of waste flows and using the "big data" concept for better and smarter waste management.

  • 11.
    Burlakovs, Juris
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Kriipsalu, Mait
    Estonian Univ Life Sci, Estonia.
    Vincevica-Gaile, Zane
    Univ Latvia, Latvia.
    Kaczala, Fabio
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Celma, Gunita
    Univ Latvia, Latvia.
    Ozola, Ruta
    Univ Latvia, Latvia.
    Rozina, Laine
    Univ Latvia, Latvia.
    Rudovica, Vita
    Univ Latvia, Latvia.
    Hogland, Marika
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Viksna, Arturs
    Univ Latvia, Latvia.
    Pehme, Kaur-Mikk
    Estonian Univ Life Sci, Estonia.
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Klavins, Maris
    Univ Latvia, Latvia.
    On the way to 'zero waste' management: Recovery potential of elements, including rare earth elements, from fine fraction of waste2018In: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 186, p. 81-90Article in journal (Refereed)
    Abstract [en]

    Existing schemes of solid waste handling have been improved implementing advanced systems for recovery and reuse of various materials. Nowadays, the 'zero waste' concept is becoming more topical through the reduction of disposed waste. Recovery of metals, nutrients and other materials that can be returned to the material cycles still remain as a challenge for future. Landfill mining (LFM) is one of the approaches that can deal with former dumpsites, and derived materials may become important for circular economy within the concept 'beyond the zero waste'. Perspectives of material recovery can include recycling of critical industrial metals, including rare earth elements (REEs). The LFM projects performed in the Baltic Region along with a conventional source separation of iron-scrap, plastics etc. have shown that the potential of fine-grained fractions (including clay and colloidal matter) of excavated waste have considerably large amounts of potentially valuable metals and distinct REEs. In this paper analytical screening studies are discussed extending the understanding of element content in fine fraction of waste derived from excavated, separated and screened waste in a perspective of circular economy. Technological feasibility was evaluated by using modified sequential extraction technique where easy extractable amount of metals can be estimated. Results revealed that considerable concentrations of Mn (418-823 mg/kg), Ni (41-84 mg/kg), Co (10.7-19.3 mg/kg) and Cd (1.0-3.0 mg/kg) were detected in fine fraction (<10 mm) of waste sampled from Hogbytorp landfill, while Cr (49-518 mg/kg) and Pb (30-264 mg/kg) were found in fine fraction (<10 mm) of waste from Torma landfill revealing wide heterogeneity of tested samples. Waste should become a utilizable resource closing the loop of anthropogenic material cycle as the hidden potential of valuable materials in dumps is considerable.

  • 12.
    Burlakovs, Juris
    et al.
    University of Latvia, Latvia.
    Kriipsalu, Mait
    Estonian University of Life Sciences, Estonia.
    Arina, Dace
    Institute of Physical Energetics, Latvia.
    Kaczala, Fabio
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Ozola, Ruta
    University of Latvia, Latvia.
    Denafas, Gintaras
    Kaunas University of Technology, Lithuania.
    Hogland, Marika
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Mykhaylenko, Valeriy
    Taras Shevchenko National University of Kyiv, Ukraine.
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Orupold, Kaja
    Estonian University of Life Sciences, Estonia.
    Turkadze, Tsitsino
    A. Tsereteli State University, Georgia.
    Daugelaite, Valdone
    Kaunas University of Technology, Lithuania.
    Bucinskas, Algimantas
    Kaunas University of Technology, Lithuania.
    Rudovica, Vita
    University of Latvia, Latvia.
    Horttanainen, Mika
    Lappeenranta University of Technology, Finland.
    Klavins, Maris
    University of Latvia, Latvia.
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Metals and rare Earth’s elements in landfills: case studies2016In: 3rd Int. Symposium on Enhanced Landfill Mining, Lisboa, 8-10/2/2016, 2016Conference paper (Refereed)
    Abstract [en]

    Landfills are considered as places where the life cycle of products ends and materialshave been “disposed forever”. The landfill mining (LFM) approach can deal with formerdumpsites and this material may become important for circular economy perspectiveswithin the concept “Beyond the zero waste”. Potential material recovery should includeperspectives of recycling of critical industrial metals where rare Earth elements (REEs)are playing more and more important role. Real-time applied LFM projects in the BalticRegion have shown the potential of fine-grained fractions (including clay and colloidalmatter) of excavated waste as storage of considerably large amounts of valuable metalsand REEs. Analytical screening studies have extended a bit further the understanding offine fraction contents of excavated, separated and screened waste in a circular economyperspective. The Swedish Institute and Latvian Research Program “Res Prod” supportedthe research.

  • 13.
    Burlakovs, Juris
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Kriipsalu, Mait
    Estonian Univ Life Sci, Estonia.
    Klavins, Maris
    Univ Latvia, Latvia.
    Bhatnagar, Amit
    Univ Eastern Finland, Finland.
    Vincevica-Gaile, Zane
    Univ Latvia, Latvia.
    Stenis, Jan
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Mykhaylenko, Valeriy
    Taras Shevchenko Natl Univ Kyiv, Ukraine.
    Denafas, Gintaras
    Fac Chem Technol, Lithuania.
    Turkadze, Tsitsino
    Akaki Tsereteli State Univ, Republic of Georgia.
    Hogland, Marika
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Rudovica, Vita
    Univ Latvia, Latvia.
    Kaczala, Fabio
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Rosendal, Rene Moller
    Danish Waste Solut ApS, Denmark.
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Paradigms on landfill mining: From dump site scavenging to ecosystem services revitalization2017In: Resources, Conservation and Recycling, ISSN 0921-3449, E-ISSN 1879-0658, Vol. 123, p. 73-84Article in journal (Refereed)
    Abstract [en]

    For the next century to come, one of the biggest challenges is to provide the mankind with relevant and sufficient resources. Recovery of secondary resources plays a significant role. Industrial processes developed to regain minerals for commodity production in a circular economy become ever more important in the European Union and worldwide. Landfill mining (LFM) constitutes an important technological toolset of processes that regain resources and redistribute them with an accompanying reduction of hazardous influence of environmental contamination and other threats for human health hidden in former dump sites and landfills. This review paper is devoted to LFM problems, historical development and driving paradigms of LFM from 'classical hunting for valuables' to 'perspective in ecosystem revitalization'. The main goal is to provide a description of historical experience and link it to more advanced concept of a circular economy. The challenge is to adapt the existing knowledge to make decisions in accordance with both, economic feasibility and ecosystems revitalization aspects. (

  • 14.
    Burlakovs, Juris
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Kriipsalu, Mait
    Estonian Univ Life Sci, Estonia.
    Porshnov, Dmitry
    Univ Latvia, Latvia.
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Ozols, Viesturs
    Univ Latvia, Latvia.
    Pehme, Kaur-Mikk
    Estonian Univ Life Sci, Estonia.
    Rudovica, Vita
    Univ Latvia, Latvia.
    Grinfelde, Inga
    Latvia Univ Life Sci & Technol, Latvia.
    Pilecka, Jovita
    Latvia Univ Life Sci & Technol, Latvia.
    Vincevica-Gaile, Zane
    Univ Latvia, Latvia.
    Turkadze, Tsitsino
    Akaki Tsereteli State Univ, Georgia.
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Klavins, Maris
    Univ Latvia, Latvia.
    Gateway of Landfilled Plastic Waste Towards Circular Economy in Europe2019In: Separations, E-ISSN 2297-8739, Vol. 6, no 2, p. 1-8, article id 25Article in journal (Refereed)
    Abstract [en]

    For decades, significant work has been conducted regarding plastic waste by dealing with rejected materials in waste masses through their accumulation, sorting and recycling. Important political and technical challenges are involved, especially with respect to landfilled waste. Plastic is popular and, notwithstanding decrease policies, it will remain a material widely used in most economic sectors. However, questions of plastic waste recycling in the contemporary world cannot be solved without knowing the material, which can be achieved by careful sampling, analysis and quantification. Plastic is heterogeneous, but usually all plastic waste is jointly handled for recycling and incineration. Separation before processing waste through the analytical approach must be applied. Modern landfill mining and site clean-up projects in contemporary waste management systems require comprehensive material studies ranging from the macro-characterization of waste masses to a more detailed analysis of hazardous constituents and properties from an energy calorific standpoint-where, among other methods, thermogravimetric research coupled with life cycle assessment (LCA) and economic assessment is highly welcomed.

  • 15.
    Burlakovs, Juris
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Purmalis, Oskars
    Krievāns, Māris
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Ground-penetrating Radar (GPR) Geoenvironmental Screening in Lakes of Latvia - Challenges and Outcomes2016Conference paper (Refereed)
    Abstract [en]

    Geophysical studies in mapping and geoenvironmental applications for screening purposes are widely applied in Latvia. Ground-penetrating radar (GPR) as the one method from geophysical toolbox is a non-invasive and non-destructive way where pulsed electromagnetic signal is recorded as scattering from subsurface objects. Aim of two described screening studies was to analyse potential advantages of GPR use for mapping bottom sediments and topography in two lakes and pinpoint challenges to overcome during works. Both lakes are relatively deep and of sub-glacial origin that became lakes after the ice retreat from Baltic region. Characterization of bottom sediments as well as full core description of upper limnic layers for comparison with GPR signals were performed. Major results show that GPR, coring and laboratory analysis can be used simultaneously, however, ground penetration radar sometimes fails to recognize full picture needed for geoenvironmental application needs. Proper treatment of data nevertheless diminish the necessity of dense coring in lakes when budgets are strict.

  • 16.
    Burlakovs, Juris
    et al.
    Univ Latvia, Latvia.
    Vincevica-Gaile, Zane
    Univ Latvia, Latvia.
    Krievans, Maris
    Univ Latvia, Latvia.
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Horttanainen, Mika
    Lappeenranta Lahti Univ Technol, Finland.
    Pehme, Kaur-Mikk
    Estonian Univ Life Sci, Estonia.
    Dace, Elina
    Univ Latvia, Latvia;Riga Stradins Univ, Latvia.
    Setyobudi, Roy Hendroko
    Univ Muhammadiyah Malang, Indonesia.
    Pilecka, Jovita
    Latvia Univ Life Sci & Technol, Latvia.
    Denafas, Gintaras
    Kaunas Univ Technol, Lithuania.
    Grinfelde, Inga
    Latvia Univ Life Sci & Technol, Latvia.
    Bhatnagar, Amit
    Univ Eastern Finland, Finland.
    Rud, Vasiliy
    Russian Agr Acad ARRIP, Russia.
    Rudovica, Vita
    Univ Latvia, Latvia.
    Mersky, Ronald L.
    Widener Univ, USA.
    Anne, Olga
    Klaipeda Univ, Lithuania.
    Kriipsalu, Mait
    Estonian Univ Life Sci, Estonia.
    Ozola-Davidane, Ruta
    Univ Latvia, Latvia.
    Tamm, Toomas
    Estonian Univ Life Sci, Estonia.
    Klavins, Maris
    Univ Latvia, Latvia.
    Platinum Group Elements in Geosphere and Anthroposphere: Interplay among the Global Reserves, Urban Ores, Markets and Circular Economy2020In: Minerals, E-ISSN 2075-163X, Vol. 10, no 6, p. 1-19, article id 558Article, review/survey (Refereed)
    Abstract [en]

    Industrial and strategic significance of platinum group elements (PGEs)-Os, Ir, Ru, Rh, Pd, Pt-makes them irreplaceable; furthermore, some PGEs are used by investors as "safe heaven" assets traded in the commodity markets. This review analyzes PGEs from various aspects: their place in the geosphere, destiny in the anthroposphere, and opportunity in the economy considering interactions among the exploration, recycling of urban ores, trade markets, speculative rhetoric, and changes required for successful technological progress towards the implementation of sustainability. The global market of PGEs is driven by several concerns: costs for extraction/recycling; logistics; the demand of industries; policies of waste management. Diversity of application and specific chemical properties, as well as improper waste management, make the recycling of PGEs complicated. The processing approach depends on composition and the amount of available waste material, and so therefore urban ores are a significant source of PGEs, especially when the supply of elements is limited by geopolitical or market tensions. Recycling potential of urban ores is particularly important in a long-term view disregarding short-term economic fluctuations, and it should influence investment flows in the advancement of innovation.

  • 17. Christianty, F. M.
    et al.
    Dianasari, D.
    Holidah, D.
    Basyrahil, N.L.H.S.
    Rizki, P.E.T.
    Saputri, L.N.D.
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Zalizar, L.
    The effects of Carica papaya L. juice on plasma aspartate transaminase/ alanine transaminase level and liver histopathology in paracetamol-induced mice2020In: Annals of Tropical Medicine and Public Health, ISSN 1755-6783, E-ISSN 0974-6005, Vol. 23, no 8, p. 1248-1252Article in journal (Refereed)
    Abstract [en]

    Liver is one of the primary and largest metabolic organs in the body. The function of the liver can be disturbed and damaged by paracetamol and liver damage can be prevented with papaya (Carica papaya L.). The purpose of this study was to know the effects of C. papaya juice on plasma AST/ALT level and liver histopathology in paracetamol-induced mice. Amount 25 Balb-C mice (Mus musculus) were divided into five treatment groups, there were normal, negative control, papaya juice dose (200, 400, 600) mg kg-1 bw-1 groups. The treatment was carried out for 7 d and then all mice (without normal groups) was induced by paracetamol. On the 8th d, blood was collected and all mice were sacrificed. The materials used in this study include C. papaya juice, CMC Na, paracetamol, AST and ALT reagents, Hematoxylin-Eosin and used Experimental Laboratory methods. One Way ANOVA and Kruskal Wallis with a confidence level of 95 % and followed by a post hoc test (LSD) to determine differences between groups. Showed that pretreatment with papaya juice could prevent liver damage and inhibit the increase of plasma AST/ALT level and papaya juice dose 600 mg kg-1 bw-1 had significant effects on plasma AST/ALT level and liver histopathology in paracetamol-induced mice. Carica papaya L. juice can be used as a hepatoprotective agent. 

  • 18.
    Denafas, G.
    et al.
    Kaunas University of Technology, Lithuania.
    Bučinskas, A
    Kaunas University of Technology, Lithuania.
    Burlakovs, Juris
    University of Latvia, Latvia.
    Dace, E
    Riga Technical University, Latvia.
    Bazienė, K
    Vilnius Gediminas Technical University, Lithuania.
    Horttanainen, M
    Lappeenranta University of Technology, Finland.
    Havukainen, J
    Lappeenranta University of Technology, Finland.
    Kaartinen, T
    VTT Technical Research Center of Finland, Finland.
    Rosendal, R
    Danish Waste Solutions, Denmark.
    Kriipsalu, M
    Estonian University of Life Sciences, Estonia.
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Investigation for landfill mining feasibilities in the Nordic and Baltic countries: overview of project results2016In: CYPRUS 2016 4th International Conference on Sustainable Solid Waste Management, At Limassol, Cyprus, 23–25 June 2016., 2016, p. 1-13Conference paper (Refereed)
  • 19.
    Faturachman, Danny
    et al.
    Darma Persada Univ, Indonesia.
    Yandri, Erkata
    Darma Persada Univ, Indonesia.
    Pujiastuti, Endang Tri
    Darma Persada Univ, Indonesia.
    Anne, Olga
    Klaipeda Univ, Lithuania.
    Setyobudi, Roy Hendroko
    Darma Persada Univ, Indonesia;Univ Muhammadiyah Malang, Indonesia.
    Jani, Yahya
    Linnéuniversitetet, Institutionen för byggd miljö och energiteknik (BET), Sweden.
    Susanto, Herry
    Darma Persada Univ, Indonesia.
    Purba, Washington
    Darma Persada Univ, Indonesia;Graha Mampang, Indonesia.
    Wahono, Satriyo Krido
    Indonesian Inst Sci, Indonesia.
    Techno-Economic Analysis of Photovoltaic Utilization for Lighting and Cooling System of Ferry Ro/Ro Ship 500 GT2021In: 1st International Conference on Bioenergy and Enviromentally Sustainable Agriculture Technology (ICoN-BEAT) / [ed] Setyobudi, RH Winaya, A Burlakovs, J Mel, M Anne, O, EDP Sciences , 2021, article id 00012Conference paper (Refereed)
    Abstract [en]

    The purpose of this study is to perform the techno-economic analysis of photovoltaic system utilization for lighting and cooling of Ferry Ro/Ro 500 GT. The world is facing a dilemma of increasing dependence on fossil energy with decreasing supply. This situation must be anticipated by all sectors by energy efficiency (EE) and utilizing renewable energy (RE). Especially for RE in the transportation sector, ships as consumers of oil energy can also take advantage of solar energy sources, for example for lighting and cooling. For that purpose, five steps must be taken. First, determine the design specifications. Second, determine the specifications of components of the PV system. Third, calculate the power required for lighting equipment. Fourth, calculate the power required for the cooling system. Fifth, make an investment comparison for propulsion systems between diesel engines and photovoltaic systems. The results show that the energy required for lighting and cooling system as well as for propulsion systems can be placed in the deck area of 148.8 m(2) for all system components, such as; PV modules, charge controllers, batteries, and inverter. This study can provide an overview of the use of PV system in designing the environmentally new or renovation ships.

  • 20.
    Ferrans, Laura
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Burlakovs, Juris
    Estonian University of Life Sciences, Estonia.
    Klavins, Maris
    University of Latvia, Latvia.
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Chemical speciation of metals from marine sediments: assessment of potential pollution risk while dredging, a case study in southern Sweden2021In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 263, no January, p. 1-9, article id 128105Article in journal (Refereed)
    Abstract [en]

    Contamination associated with metals is a critical concern related to their toxicity, persistence, and bio-accumulation. Trace elements are partitioned into several chemical forms, which some are more labile during fluctuations in the environment. Studying the distribution of metals between the different chemical fractions contributes to assess their bioavailability and to identify their potential risk of contamination to surrounding environments. This study concerns the speciation of metals (Pb, Cr, Ni, Zn and Fe) from sediments coming out from Malmfjärden bay, Sweden. The aim was to assess the potential risk of metal pollution during present and future dredging as well as while using dredged sediments in beneficial uses. The Tessier speciation procedure was chosen, and the results showed that low concentrations of metals were associated with the exchangeable fraction. In contrast, the major concentrations were linked to the residual part. The risk indexes (contamination factor and risk assessment code) showed that, during dredging activities, there is a low concern of pollution for Cr, Ni and Fe and a medium risk for Pb and Zn. Additionally, in all elements, the sum of non-residual concentrations was below the Swedish limits for using dredged sediments in sensitive lands. The findings suggested that the investigated metals in Malmfjärden sediments are related to low risks of spreading during using in beneficial uses.

  • 21.
    Ferrans, Laura
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Gao, Ling
    Beihua University, China.
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Characterization of dredged sediments: a first guide to define potentially valuable compounds - the case of Malmfjärden Bay, Sweden2019In: Advances in Geosciences, ISSN 1680-7340, E-ISSN 1680-7359, Vol. 49, p. 137-147Article in journal (Refereed)
    Abstract [en]

    Millions of tons of bottom sediments are dredged annually all over the world. Ports and bays need to extract the sediments to guarantee the navigation levels or remediate the aquatic ecosystem. The removed material is commonly disposed of in open oceans or landfills. These disposal methods are not in line with circular-economy goals and additionally are unsuitable due to their legal and environmental compatibility. Recovery of valuables represents a way to eliminate dumping and contributes towards the sustainable extraction of secondary raw materials. Nevertheless, the recovery varies on a case-by-case basis and depends on the sediment components. Therefore, the first step is to analyse and identify the sediment composition and properties. Malmfjärden is a shallow semi-enclosed bay located in Kalmar, Sweden. Dredging of sediments is required to recuperate the water level. This study focuses on characterizing the sediments, pore water and surface water from the bay to uncover possible sediment recovery paths and define the baseline of contamination in the water body. The results showed that the bay had high amounts of nitrogen (170–450 µg L−1 ), leading to eutrophication problems. The sediments mainly comprised small size particle material (silt, clay and sand proportions of 62 %–79 %, 14 %–20 %, 7 %–17 %, respectively) and had a medium–high level of nitrogen (7400–11 000 mg kg−1 ). Additionally, the sediments had little presence of organic pollutants and low–medium concentration of metals or metalloids. The characterization of the sediments displays a potential use in less sensitive lands such as in industrial and commercial areas where the sediments can be employed as construction material or as plant-growing substrate (for ornamental gardens or vegetation beside roads).

  • 22.
    Ferrans, Laura
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Jani, Yahya
    Malmö University, Sweden.
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Chemical extraction of trace elements from dredged sediments into a circular economy perspective: Case study on Malmfjärden Bay, south-eastern Sweden2021In: Resources, Environment and Sustainability, E-ISSN 2666-9161, Vol. 6, article id 100039Article in journal (Refereed)
    Abstract [en]

    Worldwide, sediments are dredged from water bodies to guarantee proper water levels and remediate aquatic ecosystems. Dredged sediments contain metals that could interfere with recycling if the concentrations overpass permissible limits. Washing of elements from sediments represents a technique to decrease the concentration of metals, and it could introduce a new source of elements. The current study aimed to employ ethylenediamine-tetraacetic acid (EDTA) and ethylenediamine-disuccinic acid (EDDS) and investigate the effect of operational parameters (concentration and pH) on the chemical extraction of metals from dredged sediments. Core sediments were extracted from sampling stations around Malmfjärden bay, Sweden. The results suggested that lead, zinc and copper were the elements with higher extraction rates, followed by arsenic and nickel. Chromium was poorly extracted. EDTA was more efficient than EDDS in dissolving the elements. Moreover, acidic conditions offered higher extraction rates for As using both chelators and for Pb employing EDTA. The 0.05 M concentration presented a higher mean extraction rate than 0.01 M for Cu, Cr and Ni for EDTA and EDDS. The findings in this study suggest that sediment washing is a promising technique to decrease metal concentrations in sediments and enhancing the feasibility to use the material for beneficial uses.

  • 23.
    Ferrans, Laura
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Testing of heavy metals recovery from dredged sediments2019In: Sediment as a dynamic natural resource from catchment to open sea / [ed] Marjan Euser, 2019Conference paper (Refereed)
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  • 24.
    Hogland, Marika
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Arina, Dace
    Inst Phys Energet, Latvia.
    Kriipsalu, Mait
    Estonian Univ Life Sci, Estonia.
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Kaczala, Fabio
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    de Sa Salomao, Andre Luis
    Univ Estado Rio De Janeiro, Brazil.
    Orupold, Kaja
    Estonian Univ Life Sci, Estonia.
    Pehme, Kaur-Mikk
    Estonian Univ Life Sci, Estonia.
    Rudovica, Vita
    Univ Latvia, Latvia.
    Denafas, Gintaras
    Kaunas Technol Univ, Lithuania.
    Burlakovs, Juris
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Vincevica-Gaile, Zane
    Univ Latvia, Latvia.
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Remarks on four novel landfill mining case studies in Estonia and Sweden2018In: Journal of Material Cycles and Waste Management, ISSN 1438-4957, E-ISSN 1611-8227, Vol. 20, no 2, p. 1355-1363Article in journal (Refereed)
    Abstract [en]

    In common sense, a landfill is a place where the life cycle of products ends. Landfill mining (LFM) mostly deals with former dumpsites and derived material may have a significant importance for the circular economy. Deliverables of recently applied LFM projects in Sweden and Estonia have revealed the potential and problems for material recovery. There are 75-100 thousand old landfills and dumps in the Baltic Sea Region, and they pose environmental risks to soil, water and air by pollution released from leachate and greenhouse gas emissions. Excavation of landfills is potential solution for solving these problems, and at the same time, there are perspectives to recover valuable lands and materials, save expenses for final coverage of the landfills and aftercare control. The research project "Closing the Life Cycle of Landfills-Landfill Mining in the Baltic Sea Region for Future" included investigation at four case studies in Estonia and Sweden: Kudjape, Torma, Hogbytorp and Vika landfills. Added value of this research project is characterization of waste fine fraction material, determination of concentration for most critical and rare earth elements. The main results showed that both, coarse and fine, fractions of waste might have certain opportunities of recovery.

  • 25.
    Hogland, William
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Burlakovs, Juris
    Estonian University of Life Sciences, Estonia.
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Sorting of wastewaters for urban and rural recycling and reuse2019In: XVI-th International youth Science and Environmental Baltic Region Countries Forum 7–9 October 2019, Gdansk, Poland, Institute of Physics (IOP) , 2019, p. 1-5, article id 012001Conference paper (Refereed)
    Abstract [en]

    Drinking water of good quality, in enough quantity at right time start to be very scarce in the world. At the same time perfect drinking water is used to flushing toilet, cleansing of sewage pipes, washing of industry floors, firefighting, washing of cars and trucks etc. Also agriculture is suffering of lack of water for irrigation during dry periods and it is necessary to use drinking water or river/lake water of high quality to get rich harvest of good quality. In the future drinking water must just be used as food stuff and not wasted in the society. People must, since they are children, be trained to respect the drinking water and not waste a single drop. Also, storm water can be considered as a source of fresh water if it collected and recycled properly. Recycling/reuse of treated/reclaimed wastewater will help to mitigate part of the increasing water demands in the society and secondary water can be used in non-potable end paths such as agriculture, industry or even recharging water aquifers.  Reclaimed/technical or recycled water for non-potable uses such as flushing toilets, irrigation and other uses will be very important in modern society in the future.

  • 26.
    Hogland, William
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Burlakovs, Juris
    Estonian University of Life Sciences, Estonia.
    Mutafela, Richard
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    From glass dump to phytoremediation park2019In: XVI-th International youth Science and Environmental Baltic Region Countries Forum 7–9 October 2019, Gdansk, Poland, Institute of Physics (IOP) , 2019, p. 1-4, article id 012007Conference paper (Refereed)
    Abstract [en]

    The Landfill mining was introduced in research in Sweden for more than three and a half decades ago. During recent years, the focus has been on the glass dumps in the Kingdom of Crystal in southeastern Sweden. Mapping of the dumps, test pit excavations, sieving and sorting of the glass masses, characterization, laboratory extraction of the metals in the glass was performed as well as measurements of radioactivity done. The polluted soil underneath the removed glass masses was treated by remediation. At one of places at the Kingdom of Crystal a phytoremediation/tourist park was established in Orrefors including a summer glasswork for tourist activities.

  • 27.
    Ismail, M
    et al.
    Women University Swabi, Pakistan.
    Alam, S
    University of Malakand, Pakistan.
    Khan, M
    University of Malakand, Pakistan.
    Shah, L
    University of Peshawar, Pakistan.
    Shah, S. M.
    University of Swabi, Pakistan.
    Wahab, M
    Women University Swabi, Pakistan.
    Rukh, G
    Women University Swabi, Pakistan.
    Rahman, N
    University of Malakand, Pakistan.
    Rehman, N
    Shaheed Benazir Bhutto University, Pakistan.
    Amin, N
    Abdul Wali Khan University, Pakistan.
    Burlakovs, J
    Estonian University of Life Sciences, Estonia.
    Kallistova, A
    Research Centre of Biotechnology of the Russian Academy of Sciences, Winogradsky Institute of Microbiology, Leninsky Pro-Spect, Russia.
    Pimenov, N
    Research Centre of Biotechnology of the Russian Academy of Sciences, Winogradsky Institute of Microbiology, Leninsky Pro-Spect, Russia.
    Gaile, Z
    University of Latvia, Latvia.
    Jani, Yahya
    Malmö universitet, Institutionen för Urbana Studier (US), Sweden.
    Zahoor, M
    University of Malakand, Pakistan.
    Zekker, I
    University of Tartu, Estonia.
    Levels and Potential Health Hazards of Chlorinated Pesticidesin Surface Water Samples of Charsadda Area of Pakistan Using SPME-GC-ECD Technique2021In: Water S.A., ISSN 0378-4738, E-ISSN 1816-7950, Vol. 13, p. 1-14, article id 2468Article in journal (Refereed)
    Abstract [en]

    In the present study, we determined the levels of chlorinated pesticide residues in surfacewater samples collected from the Charsadda district (KPK, Pakistan). SPME-GC-ECD with COMBIPAL CTC autosampler was used for extraction and analysis of 20 organochlorine pesticides in thecollected water samples. For maximum efficiency of the SPME procedure, several parameters werestudied, including the extraction and desorption time of the fiber, solution pH, agitation of samples,and stirring speed, etc. This method showed good liner response, with R2 values in the range of0.9887 to 0.9999 for all pesticides. This method also provided good percent recoveries at 1 µg L−1(87.5to 106.0%) and at 2 µg L−1(88.5 to 109.2%). Lower limits of detection for all 20 chlorinated pesticideswere found to be lower than their maximum permissible contamination levels. Approximately 50%of the surface water samples collected from the Charsadda district were found to be contaminatedwith the pesticides γ-BHC, heptachlor, aldrin and dieldrin, with maximum concentrations of 0.023,0.108, 0.014 and 0.013 µg L−1, respectively. For adults and children, the cancer risk from water dueto contamination by various pesticides ranged from 0 to 33.29 × 10−6. The non-carcinogenic riskfrom each pollutant in the water samples of the Charsadda district was found to be in the order ofheptachlor > aldrin > dieldrin > γ-BHC. However, the pesticides α-BHC, β-BHC, heptachlor epoxide,chlordane, endrin, 4,40-DDD, endrin ketone, 4,40-DDT, endosulfan sulfate and methoxychlor werenot detected in any of the surface water samples of investigated in the present study.

  • 28.
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Landfills and glass dumpsites as future bank accounts of resources: waste characterization and trace elements extraction2018Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Environmental pollution and health threats as well as scarcity of raw materials, water, food and energy are among the main challenges our world are now facing. Simultaneously, landfills and open dumpsites still are the dominant global waste disposal option even with their long term environmental impacts in case of greenhouse gases and contaminated leachates. In this thesis, landfill mining is suggested as a tool that should be included in an enhanced circular economy model (repair, reuse and recycle + extract and recovery) by considering the extraction/recovery of the lost materials in landfills and dumpsites as secondary resources.

    Characterization data (composition and physicochemical properties) is considered as a vital source for information for: i. the valorization of excavated wastes, ii. to explore potential hazards and iii. as an important tool for theassessment of the waste management systems and policies. In this thesis,excavated wastes from a classic landfill (Högbytorp in Sweden), a landfill buildup according to the European Directive requirements (Torma in Estonia) andhazardous glass dumpsite (Pukeberg in Sweden) was characterized as a centralstep in exploring the potential of recovering of valuables. In addition, the extraction of trace elements from waste glass and different finefractions were also investigated. The reduction-melting method was developedto extract hazardous concentrations of trace elements from old art and crystalglasses with more than (99%) of recovery of Pb, Cd and As. While threechelating agents (EDTA, DTPA and NTA) were used to extract Pb, Cd, Asand Zn from fine fraction (<2 mm) sampled from Pukeberg glasswork with anextraction efficiency of (40%). Besides, the fractionations of the metals Cu, Znand Cr in the fine fractions (<10 mm) excavated from Högbytorp and Tormalandfills were studied by using a modified sequential extraction procedure.

    The findings of this thesis highlighted the need to consider the dumped wastesas secondary resources and landfills and dumpsites as future bank accounts offuture raw materials instead of being burden to the human health and theenvironment.

  • 29.
    Jani, Yahya
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Waste generation and future consumption challenges2022In: Book of abstracs: Linnaeus ECO-TECH '22, Kalmar/Sweden, 2022Conference paper (Refereed)
    Abstract [en]

    Human consumption of the earth natural resources has reach to a top level where the Earth can no longer be able to regenerate these resources again. Freshwater, food, metals and many other natural materials are already suffering from a real reduction in their primary sources due to the uncontrol consumption of modern civilization. On the other hand, this consumption of materials is directly connected to the generation of different forms of waste streams that adding extra challenges to our environment and human life like climate change, water contamination and air pollution. Many landfills and dumpsites are already filled with wastes and there is no space for more wastes and therefore there is a need to find innovative methods to deal with landfilled or dumped wastes. In this talk, Dr. Yahya Jani will focus on why there is a need to extract waste materials from landfills and how mining materials from landfills can be used as secondary resources and how landfills and dumpsites can act as bank accounts for human future needs of natural materials.

  • 30.
    Jani, Yahya
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Burlakovs, Juris
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Augustsson, Anna
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Marques, Marcia
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Characterization and toxicity of hazardous wastes from an old Swedish glasswork dumpManuscript (preprint) (Other academic)
    Abstract [en]

    More than 34 old glasswork sites in the southeastern part of Sweden pose a permanent threat to human and environmental health due to the presence of toxic metals in open dumps with glass waste. The possibility of leaching of metals from different fractions of the disposed waste needed to be assessed. In the present investigation, leachate from fine fraction (soil plus glass particles < 2 mm) was characterized as following: pH (7.3), TOC (< 2%), organic content (4.4%), moisture content (9.7), COD (163 mg/kg) and trace elements content, being the values in accordance to the Swedish guidelines for landfilling of inert materials. However, very high metals content was found in the fine fraction as well as in all colors of the glass fraction (≥ 2 mm), whose values were compatible to hazardous waste landfill class. Tests with Lepidium sativum growing in the fine fraction as substrate revealed chronic toxicity expressed as inhibition of root biomass growth in 11 out of 15 samples. Additionally, leachate from fine fractions posed acute toxicity to genetically modified E. coli (Toxi-Chromotest). This study highlights the importance of combining physicochemical characterization with toxicity tests for both solid waste and leachate obtained from different waste fractions for proper hazardousness assessment supporting decision making on remediation demands.

  • 31.
    Jani, Yahya
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Burlakovs, Juris
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Augustsson, Anna
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Marques, Marcia
    Rio de Janeiro State University, Brazil.
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Physicochemical and toxicological characterization of hazardous wastes from an old glasswork dump at southeastern part of Sweden2019In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 237, p. 1-8, article id 124568Article in journal (Refereed)
    Abstract [en]

    More than 34 old glasswork sites in the southeastern part of Sweden pose a permanent threat to human and environmental health due to the presence of toxic trace elements in open dumps with glass waste. The possibility of leaching of trace elements from different fractions of the disposed waste needed to be assessed. In the present investigation, leachate from a mixture of soil and waste glass of particle sizes of less than 2mm (given the name fine fraction) was characterized by analyzing the pH (7.3), total organic content (TOC<2%), organic matter content (4.4%), moisture content (9.7%), chemical oxygen demand (COD, 163mg/kg) and trace elements content, being the values in accordance to the Swedish guidelines for landfilling of inert materials. However, very high trace elements content was found in the fine fraction as well as in all colors of waste glass, whose values were compatible to hazardous waste landfill class. Tests with Lepidium sativum growing in the fine fraction as substrate revealed chronic toxicity expressed as inhibition of root biomass growth in 11 out of 15 samples. Additionally, leachate from fine fractions posed acute toxicity to genetically modified E. coli (Toxi-Chromotest). This study highlights the importance of combining physicochemical characterization with toxicity tests for both solid waste and leachate obtained from different waste fractions for proper hazardousness assessment supporting decision making on remediation demands.

  • 32.
    Jani, Yahya
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Chemical extraction of trace elements from hazardous fine fraction at an old glasswork dump2018In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 195, p. 825-830Article in journal (Refereed)
    Abstract [en]

    Old glassworks siteshave been always associated with contamination by different trace elements likePb, Cd, As, Zn and others. The mixture of soil and waste glass of particlesizes <2mmat one of the oldest Swedish glassworks (the Pukeberg) was studiedby analyzing the trace elements content, organic content (3.6%) and pH (7.4).The results showed hazardous concentrations of Pb (1525 mg/kg), Ba (1312mg/kg), Sb (128 mg/kg), Cd (36 mg/kg), As (118 mg/kg), Zn (1154mg/kg) and Co(263 mg/kg) exceeded the Swedish guidelines of contaminated soil. Batchchemical extraction by the chelating agents EDTA, DTPA and the biodegradableNTA were performed to study the effect of chelating agent concentration and mixingtime on the extraction efficiencies by following a Box-Wilson design ofexperiments. The results displayed good extraction efficiencies (less than 41%)of Pb, Cd, As and Zn by the EDTA, DTPA and NTA, which seemed depends on thetype of chelator. In addition, high correlation between the extraction efficiencies,the chelators concentration and mixing time was found based on the statisticaland experimental results.

  • 33.
    Jani, Yahya
    et al.
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Reduction-melting extraction of trace elements from hazardous waste glass from an old glasswork’s dump in the southeastern part of Sweden2017In: Environmental Science and Pollution Research, ISSN 0944-1344, E-ISSN 1614-7499, Vol. 24, no 34, p. 26341-26349Article in journal (Refereed)
    Abstract [en]

    At the southeastern part of Sweden, old art and crystal waste glass has been identified as a hazardous waste due to high weight concentrations of Pb (32.398%), Cd (0.085%) and As (1.976%). The reduction-melting technique was used to investigate the extraction of these trace elements from powder waste glass of particle size <1 mm. Following a factorial design technique, the experimental results of the reduction-melting method showed that 99.9% of Pb, 100% of Cd and 99% of As could be extracted. For a batch of 10 g powder waste glass, the found experimental and theoretical optimum operating conditions were 1100 oC of melting temperature, 5 g of Na2CO3, 2 g of carbon and 120 min of melting time. The reduction-melting method displayed promising results which might help in recycling the extracted trace elements and glass compared to the current used solution of landfilling as hazardous wastes. 

  • 34.
    Jani, Yahya
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Waste glass in the production of cement and concrete – A review2014In: Journal of Environmental Chemical Engineering, E-ISSN 2213-3437, Vol. 2, no 3, p. 1767-1775Article in journal (Refereed)
    Abstract [en]

    Cement and glass industries are facing a lot of challenges due to the high greenhouse gases emissions, the intensive use of energy and the intensive use of the earth’s natural resources. The current situation of discarding waste glass to landfills is also not offering an environmental friendly management for the waste glass, due to the nonbiodegradable form of the waste glass. However, the chemical composition and the pozzolanic properties of waste glass are encouraging for the use of this waste in the cement and concrete industries and to provide an environmental friendly solution for the glass and cement industries. This paper reviews the different uses of waste glass in cement and concrete and the effect of the glass properties on the performance and durability of the produce cement and concrete.

  • 35.
    Jani, Yahya
    et al.
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Kaczala, Fabio
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Charlotte, Marchand
    University of Montréal, Canada.
    Hogland, Marika
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Mait, Kriipsalu
    Estonian University of Life Sciences, Estonia.
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Anders, Kihl
    Ragn-Sells AB, Sollentuna.
    Characterisation of excavated fine fraction and waste composition from a Swedish landfill2016In: Waste Management & Research, ISSN 0734-242X, E-ISSN 1096-3669, Vol. 34, no 12, p. 1292-1299Article in journal (Refereed)
    Abstract [en]

    The present research studies the characterisation and the physico-chemical properties of an excavated fine fraction (<10 mm) from a Swedish landfill, the Högbytorp. The results showed that the fine fraction represents 38% by mass of the total excavated wastes and it contains mainly soil-type materials and minerals. Higher concentrations of zinc, copper, barium and chromium were found with concentrations higher than the Swedish Environmental Protection Agency (EPA) for contaminated soil. The found moisture and organic contents of the fine fraction were 23.5% and 16.6%, respectively. The analysed calorific value (1.7 MJ kg-1), the potential of CH4 (4.74 m3 t-1 dry matter) and Total Organic Carbon (TOC) (5.6%) were low and offer low potential of energy. Sieving the fine fraction further showed that 80% was smaller than 2 mm. The fine represents a major fraction at any landfill (40%–70%), therefore, characterising the properties of this fraction is essential to find the potential of reusing/recycling or safely redisposing.

  • 36.
    Jani, Yahya
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Kriipsalu, Mait
    Estonian University of Life Sciences, Estonia.
    Pehme, Kaur-Mikk
    Estonian University of Life Sciences, Estonia.
    Burlakovs, Juris
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Hogland, Marika
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Denafas, Gintaras
    Kaunas University of Technology, Lithuania.
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Composition of waste at an early EU-landfill of Torma in Estonia2017In: Iranica Journal of Energy and Environment (IJEE), ISSN 2079-2115, E-ISSN 2079-2123, Vol. 8, no 2, p. 113-117Article in journal (Refereed)
    Abstract [en]

    Landfills represent a continuous environmental threat due to the emission of different greenhouse gases, which are mainly responsible for the climate changes, and the contaminated leachate that affects the surface and ground water recipients. The circular economy approach appeared as a useful solution to reduce the depletion of the Earth’s natural resources and the environmental risk effects by considering all of the lost resources like wastes including the landfills as potential secondary resources. It is well known that characterizing the composition of landfill waste is an essential step in specifying the recycling methods. In the current research the waste composition at one of the first EU regulations-compliant sanitary landfills (the Torma landfill in Estonia) was studied. The results showed that the fine fraction (<20 mm) represented 53% of the total excavated waste materials while the waste to energy fraction (plastics, woods etc.) was the highest within the coarse fraction (>20 mm). The present work emphasized that mining landfills can be a good solution either for extracting primary raw materials like metals, as a source for recovering energy, or for acquiring landfill space.

  • 37.
    Jani, Yahya
    et al.
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Molin, Hanna
    IVL Svenska Miljöinstitutet, | Hållbara verksamheter & konsumtion, Sweden.
    Jeppsson, Ulf
    Industriell elektroteknik och automation, Institutionen för biomedicinsk teknik, Lund Universitet, Sweden.
    Arnell, Magnus
    RISE Research Institutes of Sweden, Sweden.
    VA-kluster Mälardalen: Kunskapssammanställning om klustrets forskningsområden2023Report (Refereed)
    Abstract [sv]

    VA-kluster Mälardalen bildades år 2010 med syftet att samla regional forskningskompetensoch verksamhetsutövare inom VA-organisationer kring ett samarbete rörandereningstekniker, uppströmsarbete, resursåterföring och digitalisering inom VA-sektorn.Klustret utgörs idag av fem universitet, tretton VA-organisationer och två forskningsinstitut,som tillsammans forskar för en hållbar och resurseffektiv VA-sektor. Klustrets har drivitsamarbetet mellan VA-organisationer och lärosäten/institut på ett sätt som ger VAorganisationerna möjlighet att prioritera och initiera samarbetsprojekt inriktad på FoU samtrelevanta forskningsfrågor kopplade till VA-organisationers dagliga aktiviteter och verkligaproblem.Klustret har varit en viktig plattform för att såväl kommunicera och informeraforskningsresultat internt inom klustret som nationellt och internationellt inom de treprioriterade forskningsområdena: i) System och reningstekniker med närings- ochresursåterföring; ii) Metodik, teknik och kunskap för uppströmsarbete och hållbara kretslopp;och iii) Digitala tekniker för resurseffektiva avloppssystem. VA-kluster Mälardalen har totaltgenomfört cirka 100 forsknings- och utvecklingsprojekt fram tills nu. Många av projektenhar dessutom genomförts i samarbete med andra VA-organisationer utanför klustret samtmed internationella samarbetspartners. VA-kluster Mälardalen har bidragit med ökadkunskap och utveckling av framtida hållbara reningsverk i Sverige, EU och övriga världen. 

  • 38.
    Jani, Yahya
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Mutafela, Richard
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Burlakovs, Juris
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Smålands glassworks: a review of the recently published studies2018In: LinnaeusEco-Tech 2018, 19–21 November 2018, Kalmar, Sweden: Abstract book / [ed] Yahya Jani, Jelena Lundström, Viveka Svensson, William Hogland, Kalmar: Linnaeus university , 2018, p. 151-Conference paper (Other academic)
    Abstract [en]

    The historical contamination of Smålands glass industry by hazardous concentrations of different trace elements (such as Pb, As, Zn, Cd and others) is a fact that has been approved by many researchers. These studies covered the situation of the glassworks contamination from different angles. However, the recommended solution by the Swedish Environmental Protection Agency is landfilling. Dumping these masses means, on the first hand, losing huge amounts of the Earth natural resources as wastes and, on the second hand, losing any future opportunity of recycling or reusing due to mixing these masses with other hazardous wastes generated by different sectors. In this paper, we are trying to review and highlight the results obtained by some of the already published studies in this field to identify the gap and challenges of recycling or reusing options.

  • 39.
    Jani, Yahya
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Mutafela, Richard
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Ferrans, Laura
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Ling, Gao
    Beihua University, China.
    Burlakovs, Juris
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Phytoremediation as a promising method for the treatment of contaminated sediments2019In: Iranica Journal of Energy and Environment (IJEE), ISSN 2079-2115, E-ISSN 2079-2123, Vol. 10, no 1, p. 58-64Article in journal (Refereed)
    Abstract [en]

    Dredging activities are necessary to maintain the navigation depth of harbors and channels. Additionally,dredging can prevent the loss of water bodies. A large amount of extracted sediments is produced around theworld. Removed material is widely disposed at open seas or landfills. Much of the dredged material is pollutedand is classified as unsuitable for open-sea disposal. In Sweden, many dredging activities are taking placenowadays like that in Oskarshamn harbor, Inre harbor Norrköping municipality and Malmfjärden bay inKalmar. In this review, the potential of phytoremediation as a treatment method is discussed with focus onsuggested methods for reusing the treated sediments. Recycling or reusing of dredged and treated sedimentswill preserve Earth natural resources as well as reduce diffusion of contaminants to the environment.

  • 40.
    Jani, Yahya
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Pehme, Kaur-Mikk
    Estonian University of Life Sciences, Estonia.
    Bucinskas, A.
    Kaunas University of Technology, Lithuania.
    Kriipsalu, Mait
    Estonian University of Life Sciences, Estonia.
    Burlakovs, Juris
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Speciation of Cu, Zn and Cr in Excavated Fine Fraction of Waste at two Landfills2018In: Iranica Journal of Energy and Environment (IJEE), ISSN 2079-2115, E-ISSN 2079-2123, Vol. 9, no 2, p. 86-90Article in journal (Refereed)
    Abstract [en]

    Mining landfills and open dumpsites is associated with (40-70% by mass) fine fraction of particle sizes less than 20 or 10 mm. Soil and trace elements of considerable concentrations typically dominate the composition of this fraction. In the present paper, a modified three steps sequential extraction procedure was used to fractionate Cu, Zn and Cr in the fine fraction of waste sampled from Högbytorp (Sweden) and Torma (Estonia) landfills. The results showed that the major concentrations of Cu (98.8 and 98.6 wt%) and Cr (98.5% and 98.4 wt %) in fines from Högbytorp and Torma landfills, respectively. These data were found associated to the residual fraction. Noticeable concentrations of Cu and Cr were also found associated within the water -soluble fraction, which could be regarded as a potential risk. The Zn displayed different behavior by distributing in all the sequential extraction fractions in the fine fractions from the two landfills. Specifying the metals content using this method is essential to explore the valorization as well as the potential environmental risks by these fines fractions.

  • 41.
    Khan, Asif
    et al.
    AWKUM, Dept Chem, Khyber Pakhtunkhwa 23200, Pakistan..
    Naeem, Muhammad
    AWKUM, Dept Chem, Khyber Pakhtunkhwa 23200, Pakistan..
    Zekker, Ivar
    Univ Tartu, Inst Chem, Ravilal 4a, EE-50411 Tartu, Estonia..
    Arian, Muhammad Balal
    Univ Karachi, Dept Chem, Sindh 75270, Pakistan..
    Michalski, Greg
    Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA..
    Zeeshan, Sayed
    AWKUM, Dept Chem, Khyber Pakhtunkhwa 23200, Pakistan..
    ul Haq, Hameed
    AWKUM, Dept Chem, Khyber Pakhtunkhwa 23200, Pakistan..
    Ikram, Muhammad
    AWKUM, Dept Chem, Khyber Pakhtunkhwa 23200, Pakistan..
    Khan, Abbas
    AWKUM, Dept Chem, Khyber Pakhtunkhwa 23200, Pakistan..
    Subhan, Fazle
    AWKUM, Dept Chem, Khyber Pakhtunkhwa 23200, Pakistan..
    Jani, Yahya
    Malmö universitet, Institutionen för Urbana Studier (US), Sweden.
    Vincevica-Gaile, Zane
    Univ Latvia, Dept Environm Sci, LV-1004 Riga, Latvia..
    Zahoor, Muhammad
    Univ Malakand, Dept Biochem, Chakdara 18800, Pakistan..
    Khan, Idrees
    Bacha Khan Univ, Dept Chem, Khyber Palchtankhwa 24420, Pakistan..
    Shah, Muhammad Ishaq Ali
    AWKUM, Dept Chem, Khyber Pakhtunkhwa 23200, Pakistan..
    Multivariate statistical analysis of heavy metals and physico-chemical parameters in the groundwater of Karak District, Khyber Pakhtunkhwa, Pakistan2021In: Proceedings of the Estonian Academy of Sciences, ISSN 1736-6046, E-ISSN 1736-7530, Vol. 70, no 3, p. 297-306Article in journal (Refereed)
    Abstract [en]

    Groundwater heavy metal pollution is a major concern all around the world. For the assessment of heavy metals and physico-chemical characteristics. groundwater samples were collected from different locations of the Karak District, Pakistan. With the help of the global information system device (GIS), groundwater samples were collected and studied from 47 locations. The present study focused on the water table (WT), water source depth (WSD), pH, electrical conductivity (EC), dissolved oxygen (DO), total dissolved solids (TDS), lead (Pb(II)), silver (Ag(I)), iron (Fe(II)) and chromium (Cr(VI)) parameters. Heavy metals were analyzed by the Atomic Absorption Spectrophotometer (AAS). The Pearson's matrix of correlation showed relationships between several parameters, such as the EC and the TDS which had close interactions between all the three different groundwater samples (collected by hand pump (HP), bore holes (BH) and tube wells (TW)). The strong correlation was detected in all the sources of water between the TDS and the EC, the regression coefficient (r) of which was 1. In the hierarchical clustering (by dendrograms) the HP samples show two clusters: Cluster 1 contains seven parameters and Cluster 2 has four parameters. The BH samples have two clusters: Cluster 1 contains three parameters and Cluster 2 has eight parameters. The TW dendrogram also shows two clusters: Cluster 1 contains six parameters while Cluster 2 has five parameters.

  • 42.
    Kurniawati, A.
    et al.
    Universitas Jember, Indonesia.
    Maslachah, L.
    Universitas Airlangga, Indonesia.
    Sari, R.P.
    Hang Tuah University, Indonesia.
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Analysis of increasing IFN-γ expression in mice's lung tissue infected with Mycobacterium tuberculosis by giving purple leaf methanol extract2020In: Annals of Tropical Medicine and Public Health, ISSN 1755-6783, E-ISSN 0974-6005, Vol. 23, no 3, p. 23-33Article in journal (Refereed)
    Abstract [en]

    Context: Tuberculosis is an infectious disease that highly depends on the immune response. Purple leaves (Graptophyllum pictum (L) Griff) has an immune-modulatory activity. Aims: The purpose of this study was to analyze the effect of purple leaf methanol extract (EMDU) on the expression of IFN-γ in mice lung tissue infected with Mycobacterium tuberculosis. Materials and Methods: M. tuberculosis was infected in mice. The EMDU was given with dose (1.703, 3.406, 6.812) mg kg-1 BW-1 for 14 d after infection. The expression of IFN-γ protein (expression obtained from mice's lung tissue) was examined using immunohistochemical examination using IFN-γ anti monoclonal antibodies. Calculations performed on immunoreactive cells showed positive expression and reddish-brown appearance on the cytoplasm. Calculated as many as ten fields of view using a light microscope at 400 times magnification, then the mean value is taken. The mean value of the number of immunoreactive cells is included as data. Data analysis by one way ANOVA and Duncan test. Results: The treatment group showed that IFN-γ expression in mice tuberculosis was significantly increased (p < 0.05) of EMDU. Conclusions: Administration of EMDU increase of IFN-γ expression in mice tuberculosis. 

  • 43.
    Limpraptono, F. Y.
    et al.
    Department of Electrical Engineering, National Institute of Technology Malang, Jl. Raya Karanglo, Km. 2, Malang 65143, Indonesia.
    Nurcahyo, E.
    Department of Electrical Engineering, National Institute of Technology Malang, Jl. Raya Karanglo, Km. 2, Malang 65143, Indonesia.
    Ashari, M. I.
    Department of Electrical Engineering, National Institute of Technology Malang, Jl. Raya Karanglo, Km. 2, Malang 65143, Indonesia.
    Yandri, E.
    Graduate School of Renewable Energy, Darma Persada University, Jl. Radin Inten 2, Pondok Kelapa, East Jakarta 13450, Indonesia.
    Jani, Yahya
    Malmö universitet, Institutionen för Urbana Studier (US), Sweden.
    Design of power monitoring and electrical control systems to support energy conservation2021In: Proceedings of the Pakistan Academy of Sciences: Part A, ISSN 2518-4245, Vol. 58, no S, p. 1-8, article id ES-726Article in journal (Refereed)
    Abstract [en]

    The increasing demand for electrical energy and the decreasing supply of fossil fuels in recent years have increased the cost of electrical energy. So that the culture of saving electrical energy is a habit that must be cultivated in the community. On the other hand, energy-saving behavior cannot be realized massively without a support system that can control energy use. With these concerns, it is necessary to develop a method that encourages a culture of saving electrical energy. This paper proposes a system that supports active energy efficiency methods that can support an energy-efficient culture. This system is an electric power monitoring system that is integrated with a smart electrical panel that continuously monitors the use of electrical energy and can control electrical loads automatically, record electricity usage, provide comprehensive reports and analyze energy usage. The method used to carry out this research is research and development. This research has produced a prototype of electrical power control and monitoring system that has a smart panel based on a raspberry PI 3 and PZEM-004t power energy meter. The monitoring system performs and executes automatic control of electrical loads. The system can also provide reports in the form of data monitoring in daily, weekly, monthly or annual period. From the test results, it can be concluded that the system can work well. This research is expected to contribute to providing a system that can support government efforts in saving energy. 

  • 44.
    Marchand, Charlotte
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Kaczala, Fabio
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Jani, Yahya
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Marchand, Lilian
    INRA, France.
    Augustsson, Anna
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Hijri, Mohamed
    Université de Montréal, Canada.
    Effect of Medicago sativa L. and compost on organic and inorganic pollutant removal from a mixed contaminated soil and risk assessment using ecotoxicological tests2016In: International journal of phytoremediation, ISSN 1522-6514, E-ISSN 1549-7879, Vol. 18, no 11, p. 1136-1147Article in journal (Refereed)
    Abstract [en]

    Several Gentle Remediation Options (GRO), e.g. plant-based options (phytoremediation), singly and combined with soil amendments, can be simultaneously efficient for degrading organic pollutants and either stabilizing or extracting trace elements (TE). Here, a 5-month greenhouse trial was performed to test the efficiency of Medicago sativa L., singly and combined with a compost addition (30% w/w), to treat soils contaminated by petroleum hydrocarbons (PHC), Co and Pb collected at an auto scrap yard. After five months, total soil Pb significantly decreased in the compost-amended soil planted with M. sativa, but not total soil Co. Compost incorporation into the soil promoted PHC degradation, M. sativa growth and survival, and shoot Pb concentrations (3.8 mg/kg DW). Residual risk assessment after the phytoremediation trial showed a positive effect of compost amendment on plant growth and earthworm development. The O2 uptake by soil microorganisms was lower in the compost-amended soil, suggesting a decrease in microbial activity. This study underlined the benefits of the phytoremediation option based on M. sativa cultivation and compost amendment for remediating PHC and Pb contaminated soils.

  • 45.
    Marchand, Charlotte
    et al.
    Universite de Montreal, Canada.
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Kaczala, Fabio
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Hijri, Mohammed
    Universite de Montreal, Canada.
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Physicochemical and Ecotoxicological Characterization of Petroleum Hydrocarbons and Trace Elements Contaminated Soil2020In: Polycyclic aromatic compounds (Print), ISSN 1040-6638, E-ISSN 1563-5333, Vol. 40, no 4, p. 967-978Article in journal (Refereed)
    Abstract [en]

    Underground storage tanks used for auto oil spill waste contain many hazardous materials, including polycyclic aromatic hydrocarbons (PAHs) trace elements. These compounds pose a significant threat to the environment and affect negatively human health. The aim of this study was to characterize the soil of a former auto scrap yards in which oil spill tank leakage occurred in Sweden. The soil samples were collected from an area of 5 m2 around an oil the tank which was highly contaminated with petroleum hydrocarbons (PHC) and trace elements (cobalt and lead). Another soil samples were collected from a nearby area that was not contaminated by PHC and they were considered as controls. The characterization of these soil samples was performed using two approaches. Analysis of the relevant physico-chemical soil properties included texture, organic matter, contaminant concentration and pH, while biological analyses were performed using three independent ecotoxicological tests with plant (Lepidium sativum), earthworm (Eisenia fetida) and soil microorganisms. Toxicity tests showed that contaminants had strongly negative effects on earthworm’s development and L. sativum shoots dry biomass in both PHC contaminated and control soils. These two parameters were the most sensitive in reflecting toxicity of study soils. Oxygen uptake rate (OUR) in aqueous phase was four times higher than that of the solid phase even though a similar trend was observed in both phases (aqueous and solid). Moreover, microorganism’s respiration was high in PHC contaminated soils in comparison to control soils due to the mineralization of readily available OM and/or organic pollutants as well as the inhibitory effect of TE on soil respiration. The results clearly demonstrated that combination of chemical analyses with three toxicity tests was appropriate to characterize mixed PHC and TE contaminated soils.

  • 46.
    Marchand, Charlotte
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Mench, Michel
    Univ Bordeaux, France.
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Kaczala, Fabio
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Notini, Peter
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Hijri, Mohamed
    Univ Montreal, Canada.
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Pilot scale aided-phytoremediation of a co-contaminated soil2018In: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 618, p. 753-764Article in journal (Refereed)
    Abstract [en]

    A pilot scale experiment was conducted to investigate the aided-phytoextraction of metals and the aided-phytodegradation of petroleum hydrocarbons (PHC) in a co-contaminated soil. First, this soil was amended with compost (10% w/w) and assembled into piles (Unp-10%C). Then, a phyto-cap of Medicago sativa L. either in monoculture (MS-10%C) or co-cropped with Helianthus annuus L. as companion planting (MSHA-10%C) was sown on the topsoil. Physico-chemical parameters and contaminants in the soil and its leachates were measured at the beginning and the end of the first growth season (after five months). In parallel, residual soil ecotoxicity was assessed using the plant species Lepidium sativum L. and the earthworm Eisenia fetida Savigny, 1826, while the leachate ecotoxicity was assessed using Lemna minor L. After 5 months, PH C10-C40, PAH-L, PAH-M PAH-H, Pb and Cu concentrations in the MS-10%C soil were significantly reduced as compared to the Unp-10% C soil. Metal uptake by alfalfa was low but their translocation to shoots was high for Mn, Cr, Co and Zn (transfer factor (TF) >1), except for Cu and Pb. Alfalfa in monoculture reduced electrical conductivity, total organic C and Cu concentration in the leachate while pH and dissolved oxygen increased. Alfalfa co-planting with sunflower did not affect the extraction of inorganic contaminants from the soil, the PAH (M and H) degradation and was less efficient for PH C10-C40 and PAH-L as compared to alfalfa monoculture. The co-planting reduced shoot and root Pb concentrations. The residual soil ecotoxicity after 5 months showed a positive effect of co-planting on L. sativum shoot dry weight (DW) yield. However, high contaminant concentrations in soil and leachate still inhibited the L. sativum root DW yield, earthworm development, and L. minor growth rate. 

  • 47.
    Marchand, Charlotte
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Mohamed, Hijri
    Université de Montréal, Canada.
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Kaczala, Fabio
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Long-term phytoremediation of petroleum hydrocarbons and metals contaminated soilManuscript (preprint) (Other academic)
  • 48.
    Marchand, Charlotte
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Mohamed, Hijri
    Université de Montréal, Canada.
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Kaczala, Fabio
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Mench, Michel
    Univ Bordeaux, France.
    Notini, Peter
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Pilot scale ecopiling of petroleum hydrocarbons and metals contaminated soilManuscript (preprint) (Other academic)
  • 49.
    Mutafela, Richard
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Circular Economy Perspectives in Managing Old Contaminated Glass Dumps2018In: 11th International Conference on the Establishment of Cooperation among Companies and Institutions in the Nordic Countries, the Baltic Sea Region and the World, Kalmar, Sweden, November 19-21, 2018: Book of Abstracts, Kalmar, Växjö: Linnaeus university , 2018, p. 149-Conference paper (Other academic)
    Abstract [en]

    Landfills and dumpsites have been the ultimate end of life sinks for various materials and products. As such, they are considered rich stocks of secondary raw materials for the circular economy. However, most of them are non-sanitary as they lack protective measures against environmental contamination. Over the years, the need to exploit the resource potential of landfills as well as to mitigate their contamination problems, among other factors, has led to the concept of landfill mining, resulting in a number of mainly pilot scale mining of landfills and dumps globally. In southeastern Sweden for instance, where there are over forty old, contaminated glass dumps, a number of remedial dumpsite excavations have been going on, with eventual landfilling of excavated materials in sanitary landfills. Hence, based on the Swedish situation, this study presents three scenarios about: contaminated materials in non-sanitary dumps as they currently stand; ongoing material excavations with subsequent landfilling; and material excavations coupled with materials recovery towards reduced landfilling. The third scenario is presented as more suitable from the circular economy perspective. The scenario is thus discussed in terms of technological implications of the process from identification of concealed valuable materials in dumps to their excavation, sorting, temporal storage, valorization and eventual resource recovery. In addition, legal implications as well as potential social, economic and environmental barriers against the scenario’s implementation are discussed. Finally, the study provides recommendations that would be useful in decision making surrounding the management of contaminated and non-sanitary dumpsites.

  • 50.
    Mutafela, Richard
    et al.
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Jani, Yahya
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.
    Kaczala, Fabio
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Burlakovs, Juris
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Kihl, Anders
    Ragn Sells AB.
    Hogland, William
    Linnéuniversitetet, Institutionen för biologi och miljö (BOM).
    Characterization of Waste from Glassworks towards Resource Recovery - the Case of Madesjö Dumpsite2016In: Linnaeus Eco-Tech 2016, 21-23 November 2016, Kalmar, Sweden: Book of Abstracts, The 10th International Conference on Establishment of Cooperation between Companies and Institutions in the Nordic Countries, the Baltic Sea Region and the World. / [ed] Stina Alriksson, Jelena Lundström, William Hogland, Linnaeus University , 2016, p. 159-159Conference paper (Other academic)
    Abstract [en]

    The ‘Glasriket’ of Sweden’s Småland region is characterized by an array of landfillsand dumpsites of glass and other raw material wastes from old glassworks. Most ofthe dumpsites contain heavy metals with leaching capabilities to soil and groundwater. As these metals could be potential resources that could be recovered into theresource loop, the characterization of these wastes can provide necessary informationabout the resource recovery potential. The current investigation focuses on the firststages by quantifying the amounts of selected metals (Ba, Cr and Zn) in the glassdeposit at Madesjö dumpsite as a case. The dump was sampled at nine different pointsand two levels per point. The samples were subjected to X-ray Fluorescence scanning(XRF) and leaching tests with further analyses of metals using ICP. According to theinvestigation, the highest metal contents in the solid phase were observed in Zn(average of 4515 mg/kg) while the lowest were observed in Cr (average of 72 mg/kg).In the liquid phase, the average metal concentrations were observed to be 0.37 mg/kg,0.02 mg/kg and 0.23 mg/kg for Ba, Cr and Zn respectively. These, however, are not inreadily available form, and so further investigations need to be done in order to findcost-effective techniques for their extraction. On the other hand, further investigationsneed to be done to ascertain the leaching potential by altering such leachingparameters as contact time and liquid to solid ratio.

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