mdh.sePublications
Change search
Refine search result
1 - 9 of 9
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the Create feeds function.
  • 1.
    Jacobson, Henrik
    et al.
    Mälardalen University, Department of Public Technology.
    Forsberg, Åke
    Mälardalen University, Department of Public Technology.
    Odelström, Tommy
    Mälardalen University, Department of Public Technology.
    Dagvattenkvaliteten i anslutning till Hamnområdet i Västerås2006In: Vatten: Tidskrift för vattenvård, ISSN 0042-2886, Vol. 62, no 2, p. 149-159Article in journal (Other (popular science, discussion, etc.))
    Abstract [en]

    Dagvattenkvaliteten i hamnområden är ofta svår att definiera på grund av att hamnen ofta ligger inom industriområden med flera angränsande verksamheter och aktörer sammankopplade i samma avlopp och dagvattensystemet. Eftersom hamnen ligger närmast recipienten påverkas mätresultatet i hamnens provtagningspunkt av samtliga i avlopps- och dagvattensystemets tillförda föroreningar, vilket utgör svårigheter att få en tydlig bild av enbart hamnverksamhetens miljöpåverkan av vattnet. Bedömningsgrunder för vattenkvalitet i dagvatten och avloppsvatten är svårdefinierbara. De bedömningsgrunder som finns bygger på ett statistiskt material som utgår från olika provtagningar gjord i dag- och avloppsvatten system runt om i Sverige.

    Däremot i naturvatten finns goda underlag till vattenkvalitetsbedömningar i form av gränsvärden och normer vilka är vedertagna i litteraturen.

    I Västerås har hamnbolaget under några års tid haft hela ansvaret för mätning av förorenat vattnet i områdets dagvattensystem. Detta gäller även de föroreningar som inte härstammar från hamnens egen verksamhet, utan även från den omkringliggande. Juridiskt sett strider detta mot de allmänna hänsynsreglerna om att förorenaren betalar som beskrivs i miljöbalken. Kostnaderna har lagts på en enskild aktör för ett helt avlopps och dagvattensystem, där flera aktörer bidrar till miljöbelastningen. Detta har skett med förevändningen att hamnen är enskilt största verksamhet som bidrar med de största utsläppen av föroreningar till vattnet, vilket denna studie visar vara det motsatta förhållandet.

  • 2.
    Jacobson, Henrik
    et al.
    Mälardalen University, Department of Public Technology.
    Forsberg, Åke
    Mälardalen University, Department of Public Technology.
    Odelström, Tommy
    Mälardalen University, Department of Public Technology.
    Karim, Adel
    Mälardalen University, Department of Public Technology.
    Pollutant control in an inland water harbour: -a case study of Västerås harbour2007Conference paper (Refereed)
    Abstract [en]

    Every average sized harbour use a lot of cranes, trucks and other vehicles for loading and reloading incoming and out going ships. These vehicles are usually run by different diesel distillates, which emit pollution to the atmosphere. According to legal permissions based upon both European and national legalisations, the emission factors have to be reported in to the municipal environmental protection authorities. This present study presents methods in calculating gas exhaust emissions from these vehicles which effect the surrounding environment both to the nearby water and to the regional atmosphere. The calculation model is based upon fuel consumption and future possibilities to decrease this consumption and trade out some of the worst polluting distillates to other more ecological fuel systems.

  • 3.
    Jacobson, Henrik
    et al.
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Forsberg, Åke
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Odelström, Tommy
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Karim, Adel
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Pollutant control in inland water harbour - a case study of Västerås Harbour2007In: IGEC III Conf, Västerås, Sweden, 2007Conference paper (Refereed)
  • 4.
    Ribé, Veronica
    et al.
    Mälardalen University, School of Business, Society and Engineering.
    Nehrenheim, Emma
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Odlare, Monica
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Berglind, Rune
    FOI CBRN Defence and Security, Swedish Defence Research Agency.
    Forsberg, Åke
    Mälardalen University, School of Sustainable Development of Society and Technology.
    EVALUATION OF THE PERFORMANCE AND SAFETY OF A PINE BARK FILTER FOR LANDFILL LEACHATE AND STORMWATER TREATMENT: TOXICITY TESTING AND CHEMICAL ANALYSIS2011In: Sardinia 2011 Symposium, Thirteenth International Waste Management and Landfill Symposium, Proceedings / [ed] R. Cossu, CISA Publisher , 2011, p. 1143-Conference paper (Refereed)
    Abstract [en]

    The industrial by-product pine bark has been used successfully as a low-cost sorbent for removing heavy metals from wastewaters such as stormwaters and landfill leachates. Although the water treatment efficiency of pine bark is high, one reported drawback with using the filter material for water treatment is the potential leaching of organic compounds, e.g. tannines and other polyphenols. This phenomenon is likely to be particularly pronounced during the initial start-up phase of filtration with unused pine bark. The results from preliminary serial leaching tests with the filter material, has shown that the toxicity of the pine bark leachates to Daphnia magna (48 hr) decreases after each successive round of leaching. The aim of this study was to further investigate the leaching properties and stability of pine bark filter. In this study, parallel serial batch leaching experiments were performed with either doubly deionised or U.S. EPA moderately hard reconstituted water as leachant to determine the duration and extent of the initial desorption of organic material, analysed as DOC (Dissolved Organic Carbon), from the filter material. To further investigate the changes in toxicity of the pine bark leachates from each successive round of leaching, a more extensive toxicity assessment was performed with an aquatic ecotoxicity test battery consisting of an acute luminescent bacteria test (ROTAS) and a genotoxicity test (the Umu assay using Salmonella typhimurium TA1535/pSK1002). 

  • 5.
    Ribé, Veronica
    et al.
    Mälardalen University, School of Business, Society and Engineering.
    Nehrenheim, Emma
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Odlare, Monica
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Gustavsson, Lillemor
    Karlskoga Energi & Miljö AB.
    Berglind, Rune
    FOI CBRN Defence and Security, Swedish Defence Research Agency.
    Forsberg, Åke
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Ecotoxicological assessment and evaluation of a pine bark biosorbent treatment of five landfillleachates2012In: Waste Management, ISSN 0956-053X, E-ISSN 1879-2456, Vol. 32, no 10, p. 1886-1894Article in journal (Refereed)
    Abstract [en]

    When selecting a landfill leachate treatment method the contaminant composition of theleachate should be considered in order to obtain the most cost-effective treatment option. In this studythe filter material pine bark was evaluated as a treatment for five landfill leachates originating fromdifferent cells of the same landfill in Sweden. The objective of the study was to determine the uptake,or release, of metals and dissolved organic carbon (DOC) during a leaching test using the pine barkfilter material with the five different landfill leachates. Furthermore the change of toxicity aftertreatment was studied using a battery of aquatic bioassays assessing luminescent bacteria (Vibriofischeri) acute toxicity (30-min Microtox®), immobility of the crustacean Daphnia magna, growthinhibition of the algae Pseudokirchneriella subcapitata and the aquatic plant Lemna minor; andgenotoxicity with the bacterial Umu-C assay. The results from the toxicity tests and the chemicalanalysis were analyzed in a Principal Component Analysis and the toxicity of the samples before andafter treatment was evaluated in a toxicity classification. The pine bark filter material reduced theconcentrations of metal contaminants from the landfill leachates in the study, with some exceptions forCu and Cd. The Zn uptake of the filter was high for heavily contaminated leachates (≥73%), althoughsome desorption of zinc occurred in less contaminated waters. Some of the leachates may requirefurther treatment due to discharge into a natural recipient in order to reduce the risk of possiblebiological effects. The difference in pH changes between the different leachates was probably due tovariations in buffering capacity, affected by physicochemical properties of the leachate. The greatestdesorption of phenol during filtration occurred in leachates with high conductivity or elevated levels ofmetals or salts. Generally, the toxicity classification of the leachates implies that although filtertreatment with pine bark removes metal contaminants from the leachates effectively, it does not alterleachate toxicity noticeably. The leachates with the highest conductivity, pH and metal concentrationsare most strongly correlated with an increased toxic response in the score plots of both untreated andtreated leachates. This is in line with the toxicity classification of the leachate samples. The results fromthis study highlight the importance of evaluating treatment efficiency from the perspective of potentialrecipient effects, rather than in terms of residual concentrations of individual contaminants whentreating waters with a complex contamination matrix, such as landfill leachates.

  • 6.
    Ribé, Veronica
    et al.
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Nehrenheim, Emma
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Odlare, Monica
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Waara, Sylvia
    Högskolan i Halmstad.
    Forsberg, Åke
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Allard, Bert
    Örebro universitet.
    Assessment of the safety and performance of a low-cost filter material for treatment of landfill leachate and industrial wastewater using an integrated approach based on ecotoxicological testing and chemical analysis2009In: 12th EuCheMS International Conference on Chemistry and the Environment, 2009Conference paper (Refereed)
  • 7.
    Ribé, Veronica
    et al.
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Nehrenheim, Emma
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Odlare, Monica
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Waara, Sylvia
    Högskolan i Halmstad.
    Gustavsson, Lillemor
    Karlskoga Energi & Miljö AB.
    Forsberg, Åke
    Mälardalen University, School of Sustainable Development of Society and Technology.
    USING ECOTOXICOLOGICAL TESTS IN THE DEVELOPMENT OF A LOW-COST FILTERING SYSTEM FOR LANDFILL LEACHATE2009In: Sardinia 2009 Symposium, Twelth International Waste Management and Landfill Symposium, Proceedings / [ed] R. Cossu; L.F. Diaz; R. Stegmann, CISA Publisher , 2009, p. 435-436Conference paper (Refereed)
    Abstract [en]

    This paper describes the use of aquatic ecotoxicological tests, in combination with chemical analysis, in the evaluation of the application of low-cost pine bark sorbent, a by-product of the forestry industry, to treat low-strength landfill leachate. Initially, leaching batch tests with the untreated filter material were carried out to investigate the leaching properties of the filter material and the safety of using the material for water treatment. The test showed that leaching of metals, such as Cu, occurs, although at levels below the US EPA MCL limits. The DOC concentration in the leachate from pine bark was 69 mg/l (SD = 0.62). Phenols were measured to 4.4 mg/l (SD=0.35), which represents 7% of the DOC. 24 h and 48 h EC50 values for acute toxicity of leachates without pH adjustment to Daphnia magna were determined to 38% and 42% leachate concentration, respectively. All the test organisms were immobilised in the batch test with 100 % of the leachate concentration. The pH adjusted leachate samples showed no toxicity to Daphnia magna during 24 h or 48 h exposure. Subsequently, a tentative study with serial batch leaching tests was performed to further investigate the extent and duration of the leaching of organic material from the unused filter material. The preliminary results from the serial batch leaching showed that pH of the leachates decreased to below 5 even after three successive rounds of leaching of the pine bark. Desorption of DOC was not reduced by serial leaching of the filter material and did not appear to correlate with the observed decrease in toxicity after sequential leaching rounds. The toxicity of leachates from the untreated, unused filter material decreases after the first initial flush of water through the filter. There is a trend of reduced toxicity after each successive round of leaching for the 48 hour exposure of Daphnia magna to the leachates. All the test organisms were immobilised in the batch test with 100 % of the leachate concentration. Future research will focus on further investigation of the initial leaching duration and on chemical characterization of the leachate, with an emphasis on organic compounds.

  • 8.
    Waara, Sylvia
    et al.
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Ek, Mats
    Forsberg, Åke
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Fridolfson, Magnus
    Waara, Karl-Otto
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Hazard assessment of untreated and biologically treated landfill leachate using toxicity tests - lessons learnt from some Swedish case studies2009In: Ogolnopolska Konferencja naukowa inzynieria ekologiczna. Polish Academy of Science Monography Nr. 56 / [ed] Hanna Obarska Pempkowiak, Gdansk: Polish Academy of Science , 2009, p. 381-392Conference paper (Other academic)
  • 9.
    Waara, Sylvia
    et al.
    Mälardalen University, Department of Public Technology. Mälardalen University, School of Sustainable Development of Society and Technology.
    Waara, Karl-Otto
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Forsberg, Åke
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Fridolfsson, Magnus
    Performance of a constructed wetland system for treatment of landfill leachate.2008In: Waste 2008. Waste and Resource management-A shared responsibility, 2008, p. 655-667Conference paper (Refereed)
    Abstract [en]

    The performance of a constructed wetland for treatment of landfill leachate has been evaluated based upon data obtained during 4 years (2003-2006). It consists of a series of 10 ponds with a total capacity of 52.000 m3 covering 8 ha. Using univariate and multivariate statistics (PCA) the reduction pattern of a large number of chemical parameters including heavy metals has been investigated in 3 parts of the wetland with equal volume. Analyses show that many parameters are removed to the greatest extent in the first part of the system (e.g. many heavy metals, total suspended solids) or the second part of the system (N-NH4) while other parameters such as total nitrogen are more gradually reduced (10 ton/year removed).  Toxicity testing with 5 bioassays showed that toxicity was sometimes observed at the inlet but no toxicity was observed at the outlet for 4 of the test species. The data presented will be used for optimizing the treatment process as well as to improve the monitoring program.

1 - 9 of 9
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf