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Ariadi, B. Y., Relawati, R., Rozaki, Z., Rahmawati, N., Jani, Y. & Al Zarliani, W. O. (2024). Risk Analysis of Rice Farming at Volcano Semeru Area, Pronojiwo District, Lumajang Regency, Indonesia. In: BIO Web of Conferences: . Paper presented at 3rd and 4th International Conference on Bioenergy and Environmentally Sustainable Agriculture Technology, ICoN BEAT 2022 and 2023. Malang. 22 November 2023. EDP Sciences, 104, Article ID 00004.
Åpne denne publikasjonen i ny fane eller vindu >>Risk Analysis of Rice Farming at Volcano Semeru Area, Pronojiwo District, Lumajang Regency, Indonesia
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2024 (engelsk)Inngår i: BIO Web of Conferences, EDP Sciences , 2024, Vol. 104, artikkel-id 00004Konferansepaper, Publicerat paper (Fagfellevurdert)
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.

sted, utgiver, år, opplag, sider
EDP Sciences, 2024
Emneord
Financial risk, Paddy rice farming, Production risk
HSV kategori
Identifikatorer
urn:nbn:se:mdh:diva-66662 (URN)10.1051/bioconf/202410400004 (DOI)2-s2.0-85192848687 (Scopus ID)
Konferanse
3rd and 4th International Conference on Bioenergy and Environmentally Sustainable Agriculture Technology, ICoN BEAT 2022 and 2023. Malang. 22 November 2023
Tilgjengelig fra: 2024-05-22 Laget: 2024-05-22 Sist oppdatert: 2024-05-22bibliografisk kontrollert
Waskitho, N. T., Amelida, R. D., Wibowo, F. A., Jani, Y. & Aryanti, N. A. (2024). The Characteristic of Teak Growing in Three Areas (Mine, Non-Mining, and Ex-Mining) Forest Management Unit Parengan Bojonegoro, Indonesia. In: BIO. Web. Conf.: . Paper presented at The 3rd and 4th International Conference on Bioenergy and Environmentally Sustainable Agriculture Technology (ICoN BEAT 2022 and 2023). EDP Sciences, 104
Åpne denne publikasjonen i ny fane eller vindu >>The Characteristic of Teak Growing in Three Areas (Mine, Non-Mining, and Ex-Mining) Forest Management Unit Parengan Bojonegoro, Indonesia
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2024 (engelsk)Inngår i: BIO. Web. Conf., EDP Sciences , 2024, Vol. 104Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Bojonegoro Regency has an oil mining location where it is estimated that Indonesia's crude oil reserves are 25 % of national needs. The location is in Forest Management Unit (Kesatuan Pengelolaan Hutan - KPH) Parengan which has a teak forest (Tectona grandis L.) with a very close oil mining radius. The aim of the research is to determine the differences in the characteristics of teak growing places and to determine the types of petroleum fractions in active oil mines, former oil mines and those without oil mines. The research method uses a circle plot (17.8 m) with a Sampling Intensity (IS) of 20 % with data analysis results using a one sample test and a Least Significant Difference (LSD) alpha test of 5 %. The characteristics of the teak growing area at each location have different values for height, P content, C content, number of oil fractions and temperature. The types of petroleum fractions in active oil mines are naphtha, kerosene, fuel oil and wax. Ex-oil mines contain gasoline (premium), kerosene, aviation fuel, light gas, fuel oil, lubricating oil, wax and asphalt. In locations without oil mines there is kerosene, aviation fuel, gasoline (premium) and light gas.

sted, utgiver, år, opplag, sider
EDP Sciences, 2024
Emneord
Mine pollution, Polluted landscape, Tectona grandis L
HSV kategori
Identifikatorer
urn:nbn:se:mdh:diva-66663 (URN)10.1051/bioconf/202410400031 (DOI)2-s2.0-85192798820 (Scopus ID)
Konferanse
The 3rd and 4th International Conference on Bioenergy and Environmentally Sustainable Agriculture Technology (ICoN BEAT 2022 and 2023)
Tilgjengelig fra: 2024-05-22 Laget: 2024-05-22 Sist oppdatert: 2024-05-22bibliografisk kontrollert
Basir, A., Sutawi, S., Ariadi, B. Y., Tonda, R., Ekawati, I., Zainudin, Z., . . . Pakarti, T. A. (2023). Proficiency in Informatics and Communication Technology Application to Improve Agricultural Counseling Performance in Luwu Regency, Indonesia. In: E3S Web Conf.: . Paper presented at E3S Web of Conferences. EDP Sciences
Åpne denne publikasjonen i ny fane eller vindu >>Proficiency in Informatics and Communication Technology Application to Improve Agricultural Counseling Performance in Luwu Regency, Indonesia
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2023 (engelsk)Inngår i: E3S Web Conf., EDP Sciences , 2023Konferansepaper, Publicerat paper (Fagfellevurdert)
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.

sted, utgiver, år, opplag, sider
EDP Sciences, 2023
Emneord
advanced and independent farmers, Agricultural development, farmer welfare, improve agriculture productivity
HSV kategori
Identifikatorer
urn:nbn:se:mdh:diva-64704 (URN)10.1051/e3sconf/202343200001 (DOI)2-s2.0-85175448748 (Scopus ID)
Konferanse
E3S Web of Conferences
Tilgjengelig fra: 2023-11-09 Laget: 2023-11-09 Sist oppdatert: 2023-11-15bibliografisk kontrollert
Jani, Y., Molin, H., Jeppsson, U. & Arnell, M. (2023). VA-kluster Mälardalen: Kunskapssammanställning om klustrets forskningsområden. Sweden
Åpne denne publikasjonen i ny fane eller vindu >>VA-kluster Mälardalen: Kunskapssammanställning om klustrets forskningsområden
2023 (svensk)Rapport (Fagfellevurdert)
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. 

sted, utgiver, år, opplag, sider
Sweden: , 2023. s. 18
Emneord
VA-kluster Mälardalen, forskning, vatten
HSV kategori
Identifikatorer
urn:nbn:se:mdh:diva-64759 (URN)
Tilgjengelig fra: 2023-11-16 Laget: 2023-11-16 Sist oppdatert: 2023-12-07bibliografisk kontrollert
Burlakovs, J., Vincevica-Gaile, Z., Bisters, V., Högland, W., Kriipsalu, M., Zekker, I., . . . Anne, O. (2022). Application of Anaerobic Digestion for Biogas and Methane Production from Fresh Beach-Cast Biomass. In: EAGE GET 2022: Proceedings. Paper presented at EAGE GET 2022, The Hague, Netherlands, 7-9 November, 2022 (pp. 1-5). , 2022
Åpne denne publikasjonen i ny fane eller vindu >>Application of Anaerobic Digestion for Biogas and Methane Production from Fresh Beach-Cast Biomass
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2022 (engelsk)Inngår i: EAGE GET 2022: Proceedings, 2022, Vol. 2022, s. 1-5Konferansepaper, Publicerat paper (Fagfellevurdert)
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.

Emneord
biogas, beach wrack, Baltic Sea
HSV kategori
Forskningsprogram
energi- och miljöteknik
Identifikatorer
urn:nbn:se:mdh:diva-60378 (URN)10.3997/2214-4609.202221028 (DOI)
Konferanse
EAGE GET 2022, The Hague, Netherlands, 7-9 November, 2022
Tilgjengelig fra: 2022-10-25 Laget: 2022-10-25 Sist oppdatert: 2022-10-25bibliografisk kontrollert
Vincevica-Gaile, Z., Sachpazidou, V., Bisters, V., Klavins, M., Anne, O., Grinfelde, I., . . . Burlakovs, J. (2022). Applying Macroalgal Biomass as an Energy Source: Utility of the Baltic Sea Beach Wrack for Thermochemical Conversion. Sustainability, 14(21), Article ID 13712.
Åpne denne publikasjonen i ny fane eller vindu >>Applying Macroalgal Biomass as an Energy Source: Utility of the Baltic Sea Beach Wrack for Thermochemical Conversion
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2022 (engelsk)Inngår i: Sustainability, E-ISSN 2071-1050, Vol. 14, nr 21, artikkel-id 13712Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Global resource limits and increasing demand for non-fossil energy sources have expanded the research on alternative fuels. Among them, algal biomass is designated as a third-generation feedstock with promising opportunities and the capability to be utilized for energy production in the long term. The paper presents the potential for converting beach wrack containing macroalgal biomass into gaseous fuel as a sustainable option for energy production, simultaneously improving the organic waste management that the coastline is facing. Beach wrack collected in the northern Baltic Sea region was converted by gasification technology applicable for carbon-based feedstock thermal recovery, resulting in syngas production as the main product and by-product biochar. Proximate and ultimate analysis, trace and major element quantification, detection of calorific values for macroalgal biomass, and derived biochar and syngas analysis were carried out. A higher heating value for beach wrack was estimated to be relatively low, 5.38 MJ/kg as received (or 14.70 MJ/kg on dry basis), but produced syngas that contained enough high content of CH4 (42%). Due to macroalgal biomass specifics (e.g., high moisture content and sand admixture), an adjusted gasification process, i.e., the combination of thermochemical procedures, such as mild combustion and pyrolytic biomass conversion, might be a better choice for the greater economic value of biowaste valorization

Emneord
beach cast; biomass conversion; biochar; gasification; seaweed; syngas; waste to energy
HSV kategori
Forskningsprogram
energi- och miljöteknik
Identifikatorer
urn:nbn:se:mdh:diva-60379 (URN)10.3390/su142113712 (DOI)000882674500001 ()2-s2.0-85141867494 (Scopus ID)
Tilgjengelig fra: 2022-10-25 Laget: 2022-10-25 Sist oppdatert: 2022-11-23bibliografisk kontrollert
Tonda, R., Zalizar, L., Widodo, W., Setyobudi, R. H., Hermawan, D., Damat, D., . . . Busa, Y. (2022). Potential Utilization of Dried Rice Leftover of Household Organic Waste for Poultry Functional Feed. Jordan Journal of Biological Sciences, 15(5), 879-886
Åpne denne publikasjonen i ny fane eller vindu >>Potential Utilization of Dried Rice Leftover of Household Organic Waste for Poultry Functional Feed
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2022 (engelsk)Inngår i: Jordan Journal of Biological Sciences, ISSN 1995-6673, Vol. 15, nr 5, s. 879-886Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Indonesia produced 30 × 106 t of waste in 2021; 40 % was organic and 276 × 103 t leftover rice. Meanwhile, broiler chicken farmers have been struggling with high feed costs to continue their production. Processing leftover rice into "aking-rice" is environmentally friendly, and it also provides alternative feed for chickens. "Aking-rice" is a type of resistant starch because it has undergone a gelatinization process that works as a synthesis of short-chain fatty acids that positively improve the function of the digestive tract because it increases the villi in the small intestine. This study analyzed the potential of “akingrice” in broiler chicken productivity. The experimental method was a completely randomized design with three treatments, five replications and 12 chickens in each unit. The treatments are T0 (100 % basal feed), T1 (80 % basal feed + 20 % “akingrice” spread on top of the basal feed), and T2 (80 % basal feed + 20 % "aking-rice" mix). Statistical analysis used ANOVA, and continued with LSD with observed variables, i.e. Feed Intake (FI), Average Daily Gain (ADG), Feed Conversion Ratio (FCR), and Performance Index (PI). The results showed that the highest FI values were T0 (99.02), T1 (97.45), and T2 (96.58). The highest ADG was T1 (40.40) then T0 (37.07) and the lowest was T2 (36.40). T1 has the lowest FCR (2.42) compared to T0 (2.68), T2 (2.66). The lowest FCR is T1 (2.42), then T2 (2.66) and the highest is T0 (2.68). The third variable was not significantly different, but the PI results showed a significant difference with the highest PI value T1 (433.84), while T0 (374.81) and T2 (372.67) were not different. Economic analysis also shows that the highest cost T0 (118 475) is significantly different from T1 (110 541) and T2 (109 558). The highest profit is shown by T1 (2 102) then T2 (1 063) and T0 (507). In conclusion, the use of "aking-rice" can increase the performance index with a higher ADG value and a lower FCR so that the costs are smaller and the profit is greater.

sted, utgiver, år, opplag, sider
Hashemite University, 2022
Emneord
Aking-rice, Alternatif feed, Environmentally friendly, Farmer income, Feed cost, Feed substitution, Resistant starch, Waste to feed.
HSV kategori
Identifikatorer
urn:nbn:se:mdh:diva-61800 (URN)10.54319/jjbs/150517 (DOI)2-s2.0-85146706180 (Scopus ID)
Tilgjengelig fra: 2023-02-08 Laget: 2023-02-08 Sist oppdatert: 2023-02-08bibliografisk kontrollert
Mutafela, R., Ye, F., Jani, Y., Dutta, J. & Hogland, W. (2022). Sustainable extraction of hazardous metals from crystal glass waste using biodegradable chelating agents. Journal of Material Cycles and Waste Management, 24(2)
Åpne denne publikasjonen i ny fane eller vindu >>Sustainable extraction of hazardous metals from crystal glass waste using biodegradable chelating agents
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2022 (engelsk)Inngår i: Journal of Material Cycles and Waste Management, ISSN 1438-4957, E-ISSN 1611-8227, Vol. 24, nr 2Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Extraction of hazardous metals from dumped crystal glass waste was investigated for site decontamination and resource recovery. Mechanically activated glass waste was leached with biodegradable chelating agents of ethylenediamine-N,N'-disuccinic acid (EDDS) and nitrilotriacetic acid (NTA), where the concentration and reaction time were determined by using Box-Wilson experimental design. Hazardous metals of lead (Pb), arsenic (As), antimony (Sb) and cadmium (Cd) with concentrations higher than regulatory limits were extracted wherein the extraction yield was found to vary Pb > Sb > As > Cd. Extraction was influenced more by type and concentration of chelator rather than by reaction time. A maximum of 64% of Pb could be extracted by EDDS while 42% using NTA. It is found that increase of chelator concentrations from 0.05 M to 1 M did not show improved metal extraction and the extraction improved with reaction time until 13 h. This study provides sustainable alternative for treating hazardous glass waste by mechanical activation followed by extraction using biodegradable chelator, instead of acid leaching.

sted, utgiver, år, opplag, sider
Springer, 2022
Emneord
Crystal glass waste, Heavy metals, Metal extraction, Biodegradable chelating agent, EDDS and NTA
HSV kategori
Forskningsprogram
Naturvetenskap, Miljövetenskap
Identifikatorer
urn:nbn:se:mdh:diva-57952 (URN)10.1007/s10163-022-01351-7 (DOI)000746324200001 ()2-s2.0-85123480534 (Scopus ID)2022 (Lokal ID)2022 (Arkivnummer)2022 (OAI)
Tilgjengelig fra: 2022-02-04 Laget: 2022-04-12 Sist oppdatert: 2022-08-29bibliografisk kontrollert
Jani, Y. (2022). Waste generation and future consumption challenges. In: Book of abstracs: Linnaeus ECO-TECH '22. Paper presented at Linnaeus ECO-TECH '22, 13th International conference on establishment of cooperation between companies and institutions in the Nordic countries, the Baltic Sea region and the world, Kalmar, Sweden, 21 – 23 November 2022. Kalmar/Sweden
Åpne denne publikasjonen i ny fane eller vindu >>Waste generation and future consumption challenges
2022 (engelsk)Inngår i: Book of abstracs: Linnaeus ECO-TECH '22, Kalmar/Sweden, 2022Konferansepaper, Oral presentation with published abstract (Fagfellevurdert)
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.

sted, utgiver, år, opplag, sider
Kalmar/Sweden: , 2022
Emneord
waste generation, municipal solid waste, sustainability, consumption, future resources
HSV kategori
Identifikatorer
urn:nbn:se:mdh:diva-60980 (URN)978-91-89460-85-0 (ISBN)
Konferanse
Linnaeus ECO-TECH '22, 13th International conference on establishment of cooperation between companies and institutions in the Nordic countries, the Baltic Sea region and the world, Kalmar, Sweden, 21 – 23 November 2022
Tilgjengelig fra: 2022-11-23 Laget: 2022-11-23 Sist oppdatert: 2022-11-24bibliografisk kontrollert
Rahman, N., Ullah, I., Alam, S., Khan, M., Shah, L., Zekker, I., . . . Zahoor, M. (2021). Activated Ailanthus altissima Sawdust as Adsorbent for Removal of Acid Yellow 29 from Wastewater: Kinetics Approach. Water, 15(13), 1-13, Article ID 2136.
Åpne denne publikasjonen i ny fane eller vindu >>Activated Ailanthus altissima Sawdust as Adsorbent for Removal of Acid Yellow 29 from Wastewater: Kinetics Approach
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2021 (engelsk)Inngår i: Water, E-ISSN 2073-4441, Vol. 15, nr 13, s. 1-13, artikkel-id 2136Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

In this study, Ailanthus altissima sawdust was chemically activated and characterized by Scanning Electron Microscopy (SEM), Fourier Transform Infrared (FTIR), Energy Dispersive X rays (EDX), and surface area analyzer. The sawdust was used as an adsorbent for the removal of azo dye; Acid Yellow 29 (AY 29) from wastewater. Different kinetic and equilibrium models were used to calculate the adsorption parameters. Among the applied models, the more suitable model was Freundlich with maximum adsorption capacities of 9.464, 12.798, and 11.46 mg/g at 20 °C, 30 °C, and 40 °C respectively while R2 values close to 1. Moreover, the kinetic data was best fitted in pseudo second order kinetic model with high R2 values approaching to 1. Furthermore, adsorption thermodynamics parameters such as free energy, enthalpy, and entropy were calculated and the adsorption process was found to be exothermic with a value of ∆H° = −9.981 KJ mol−1, spontaneous that was concluded from ΔG° values which were negative (−0.275, −3.422, and −6.171 KJ mol−1 at 20, 30, and 40 °C respectively). A positive entropy change ∆S° with a value of 0.0363 KJ mol−1 indicated the increase disorder during adsorption process. It was concluded that the activated sawdust could be used as a suitable adsorbent for the removal of waste material, especially dyes from polluted waters.

sted, utgiver, år, opplag, sider
MDPI, 2021
Emneord
chemically activated sawdust; azo dyes; adsorption; kinetics; isotherm models
HSV kategori
Forskningsprogram
Urbana studier
Identifikatorer
urn:nbn:se:mdh:diva-57958 (URN)10.3390/w13152136 (DOI)000682183300001 ()2-s2.0-85112082057 (Scopus ID)
Tilgjengelig fra: 2022-04-12 Laget: 2022-04-12 Sist oppdatert: 2023-08-28bibliografisk kontrollert
Organisasjoner
Identifikatorer
ORCID-id: ORCID iD iconorcid.org/0000-0001-8906-9271