Change search
Refine search result
45678 301 - 350 of 374
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.
  • 301. Maurice, Christian
    et al.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Using Betula pendula and Telephora caryophyllea for soil pollution assessment2000In: Journal of soil contamination, ISSN 1058-8337, E-ISSN 1878-5956, Vol. 9, no 1, p. 31-50Article in journal (Refereed)
    Abstract [en]

    The concentrations of available arsenic, copper, lead, and zinc in the soil, and the concentration of these elements in vegetal tissues were measured. The most common species at the sites were studied. All the species that were analyzed took up pollutants and could indicate polluted soil. However, all the studied species did not fit to map pollution. The birch (Betula pendula) and most of the fungi species had still quite low concentrations in their tissues compared with the available concentrations in the sail. No direct correlation between the pollution content in the soil and in the vegetation tissues could be observed. Specimens of Thlaspi caerulescens were accumulating zinc Of the four fungi species collected: only Thelephora caryophyllea seemed to accumulate actively in the studied pollutants. Moreover, it was possible to use an arsenic test with the fungi, which is also interesting from the perspective of preliminary assessment of the degree of pollution. A qualitative judgement of the soil pollution is possible by examining the plant material. To obtain a more quantitative and complete mapping, the method has to be developed further and completed with other investigations when vegetation is missing.

  • 302. Andreas, Lale
    et al.
    Ecke, Holger
    Shimaoka, T.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Characterizing landfill phases at full-scale with the aid of test cells1999In: Sardinia 99: proceedings / Seventh International Waste Management and Landfill Symposium, [4 - 8 October 1999, S. Margherita di Pula, Cagliari, Sardinia, Italy]. / [ed] Thomas H. Christensen, Cagliari: CISA, Environmental Sanitary Engineering Centre , 1999, Vol. 1, p. 145-152Conference paper (Refereed)
  • 303. Maurice, Christian
    et al.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Ettala, M.
    University of Kuopio.
    Effects of leachate irrigation on landfill vegetation and subsequent methane emissions1999In: Water, Air and Soil Pollution, ISSN 0049-6979, E-ISSN 1573-2932, Vol. 113, no 1-4, p. 203-216Article in journal (Refereed)
    Abstract [en]

    Short-rotation tree forests are irrigated with landfill leachate to reduce both leachate volume and nutrient content. It is of interest both for leachate treatment and energy recovery to optimise the productivity of such plantations. This study's aim was to investigate the effects of irrigation on soil quality, tree growth and on emissions of landfill gas (LFG) produced in the wastes. Soils irrigated with leachate had a higher average nutrient and organic matter contents, and a lower dry solids content. Larger trees occur on plots irrigated with leachate, presumably due to the positive effect of water and nutrient supply. The willows used in this experiment seemed to be tolerant of high carbon dioxide concentrations, as no statistically effect arising from LFG emissions could be linked to tree growth. Methane oxidation levels between 50 and 950 mol m(-2) yr(-1) were observed. The positive correlation between soil methane oxidation capacity and tree presence is an interesting perspective on reduction of methane emissions by landfill's top cover vegetation type. Optimising methane oxidation using vegetation as a 'cover crop' could reduce the amount of methane discharged into the atmosphere.

  • 304. Maurice, Christian
    et al.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Establishing vegetation in a pilot scale wetland in a cold climate region1999In: Sardinia 99: Seventh International Waste Management and Landfill Symposium, [4 - 8 October 1999, S. Margherita di Pula, Cagliari, Sardinia, Italy]. / [ed] Thomas H. Christensen, Cagliari: CISA, Environmental Sanitary Engineering Centre , 1999, Vol. 2, p. 231-237Conference paper (Refereed)
  • 305. Sakanakura, H.
    et al.
    Ecke, Holger
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Matsuto, T.
    Tanaka, N.
    Evaluation of methods used for the total decomposition of bottom ash and slag from electric arc vitrification1999In: Copenhagen Waste and Water '99 including EcoProcura Copenhagen '99: Conference Proceedings, København, 1999Conference paper (Refereed)
  • 306. Fischer, Christine
    et al.
    Maurice, Christian
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Gas emission from landfills: an overview of issues and research needs : survey1999Report (Other academic)
  • 307. Diaz, Luis F.
    et al.
    Eggerth, Linda L.Lagerkvist, AndersLuleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Proceedings of the 3rd Swedish Landfill Research Symposium: Luleå University of Technology, 6th-8th October 19981999Collection (editor) (Other academic)
  • 308.
    Kylefors, K.
    et al.
    Luleå University of Technology.
    Ecke, Holger
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Relevancy of a discharge limit of COD for landfill leachates1999In: Sardinia 99: proceedings / Seventh International Waste Management and Landfill Symposium, [4 - 8 October 1999, S. Margherita di Pula, Cagliari, Sardinia, Italy]. / [ed] Thomas H. Christensen, Cagliari: CISA, Environmental Sanitary Engineering Centre , 1999, Vol. 1, p. 201-205Conference paper (Refereed)
  • 309. Palmquist, Helena
    et al.
    Ecke, Holger
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Removal of hazardous elements from MSWI slag leachate using anaerobic filters1999In: Sardinia 99: proceedings / Seventh International Waste Management and Landfill Symposium, [4 - 8 October 1999, S. Margherita di Pula, Cagliari, Sardinia, Italy] / [ed] Thomas H. Christensen, Cagliari: CISA, Environmental Sanitary Engineering Centre , 1999, p. 253-260Conference paper (Refereed)
  • 310. Ecke, Holger
    et al.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Swedish city uses anaerobic technology1999In: Biocycle, ISSN 0276-5055, Vol. 40, no 6, p. 55-Article in journal (Refereed)
    Abstract [en]

    Discusses the two-step anaerobic degradation (TSAAD) system of the Boras plant in Sweden. Reasons for the decision of the municipality of Boras to choose the source separation refuse system; Anaerobic digestion technology used by the Boras plant; How the TSAAD works; Results of the evaluation of the operation.

  • 311. Ecke, Holger
    et al.
    Bergman, Anders
    Luleå University of Technology.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Waste characterisation1999Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 312.
    Lundeberg, Simon
    et al.
    Svenska Renhållningsverksföreningen.
    Ecke, Holger
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Biologisk behandling av avfall i Borås1998Report (Other academic)
  • 313. Maurice, Christian
    et al.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Carbonisation in fly ash and its effects on permeability1998In: Svenskt symposium om upplagsforskning 1998: Third Swedish landfill research symposia 1998, 1998, p. 147-148Conference paper (Other academic)
  • 314.
    Maurice, Christian
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Landfill gas emission and landfill vegetation1998Licentiate thesis, comprehensive summary (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 315. Maurice, Christian
    et al.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    LFG emission and methane oxidation in cold climate conditions1998In: Svenskt symposium om upplagsforskning 1998: Third Swedish landfill research symposia 1998, 1998, p. 79-80Conference paper (Other academic)
  • 316. Ecke, Holger
    et al.
    Bergman, Anders
    Luleå University of Technology.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Multivariate data analysis (MVDA) in landfill research1998In: The Journal of Solid Waste Technology and Management, ISSN 1088-1697, Vol. 25, no 1, p. 33-39Article in journal (Refereed)
    Abstract [en]

    Multivariate data analysis (MVDA), a new statistical approach in terms of landfill research, was performed at the evaluation of data sets from three investigations. The interrelationships among variables as well as variation between observations could be examined. Causal relations between experimental factors and response variables have been identified using scatterpott interpretation. The ease of using MVDA at data evaluation is proved. MVDA techniques as follows were applied: principal component analysis (PCA), partial least squares modelling (PLS) and partial least squares discriminant analysis (PLS-DA).

  • 317.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    The coordinated Swedish test cell program 1990-19951998In: Svenskt symposium om upplagsforskning 1998: Third Swedish landfill research symposia 1998, 1998, p. 59-Conference paper (Other academic)
  • 318. Ecke, Holger
    et al.
    Sakanakura, H.
    Hokkaido University, Department of Environmental and Sanitary Engineering.
    Matsuto, T.
    Hokkaido University, Department of Environmental and Sanitary Engineering.
    Tanaka, N.
    Hokkaido University, Department of Environmental and Sanitary Engineering.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    The effect of electric arc vitrification on the chemical stability ot bottom ash from municipal solid waste incineration (MSWI)1998In: Svenskt symposium om upplagsforskning 1998: Third Swedish landfill research symposia 1998, 1998, p. 135-136Conference paper (Other academic)
  • 319.
    Kylefors, Katarina
    et al.
    Luleå tekniska universitet.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Time required for stabilisation of MSW landfills1998In: Svenskt symposium om upplagsforskning 1998: Third Swedish landfill research symposia 1998, 1998, p. 89-90Conference paper (Other academic)
  • 320. Maurice, Christian
    et al.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Using vegetation to assess distribution of pollutants in soil1998In: Svenskt symposium om upplagsforskning 1998: Third Swedish landfill research symposia 1998, 1998, p. 149-150Conference paper (Other academic)
  • 321. Maurice, Christian
    et al.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Utveckling av bottentätning för avfallsupplag baserad på vedaska1998Report (Other (popular science, discussion, etc.))
  • 322.
    Sulzbacher, K.
    et al.
    Hamburg University of Technology.
    Ecke, Holger
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Calmano, W.
    Hamburg University of Technology.
    Anaerobic reduction of hexavalent chromium in filter sludge of an electrochemical process1997In: Environmental technology, ISSN 0959-3330, E-ISSN 1479-487X, Vol. 18, no 3, p. 301-307Article in journal (Refereed)
    Abstract [en]

    The potential of an anaerobic system to remediate hexavalent chromium containing waste was investigated. Experiments were performed at laboratory scale in the batch mode. The variables studied were the concentrations of waste, of inoculum, of yeast as an additional carbon source, of sulfate and the initial pH. The gas development, the final pH and the final concentrations of hexavalent and total chromium were measured. The evaluation was based on Multivariate data analysis. It could be shown that a remediation is possible. The influence of pH and sulfate were negligible in the given range. High yeast concentrations and low waste concentrations were favorable for a strong gas development and a complete elimination of chromate. Possible mechanisms are the active reduction of chromate by the microorganisms, its use as electron acceptor in bacterial respiration, and its sorption on organic material. Especially the last explanation is strongly supported by the experiments.

  • 323. Ecke, Holger
    et al.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Anaerobic treatment of putrescible refuse (ATPR): a review1997Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 324.
    Lagerkvist, Anders
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Kylefors, Katarina
    Luleå tekniska universitet.
    Bergman, Anders
    Luleå tekniska universitet.
    Aplicacion de una estrategia de gestion a los vertederos de residuos solidos1997In: Residuos: Revista Técnica, ISSN 1131-9526, Vol. 39, p. 14-16Article in journal (Refereed)
  • 325. Maurice, Christian
    et al.
    Ettala, M.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Effect of leachate irrigation and LFG on short rotation tree plantations1997In: Sardinia 97: proceedings ; [13 - 17 October 1997, S. Margherita di Pula - Cagliari, Sardinia, Italy] / [ed] Thomas H. Christensen, Cagliari: CISA, Environmental Sanitary Engineering Centre , 1997, Vol. Vol. 4, p. 343-352Conference paper (Refereed)
  • 326.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Forskning och utbildning inom avfallsområdet vid Luleå tekniska universitet1997In: RVF-nytt, ISSN 0284-1827, no 2, p. 47-48Article in journal (Other academic)
  • 327. Ecke, Holger
    et al.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Lundeberg, S.
    Assarsson, A.
    Full-scale anaerobic digestion and composting of source-separated organic municipal solid waste in a novel process1997In: ORBIT 97: Organic recovery & biological treatment / [ed] E.I. Stentiford, NCDA , 1997Conference paper (Refereed)
  • 328. Ecke, Holger
    et al.
    Kylefors, K.
    Luleå University of Technology.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Karakterisering och omhändertagande av botten- och flygaska vid Dåvamyrans avfallsanläggning1997Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 329.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Landfill dictionary1997Collection (editor) (Other academic)
  • 330. Maurice, Christian
    et al.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Landfill gas properties and effect on green plants: litterature review1997Report (Other academic)
  • 331. Ecke, Holger
    et al.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Landfill systems for waste conversion1997In: Sardinia 97: proceedings ; [13 - 17 October 1997, S. Margherita di Pula - Cagliari, Sardinia, Italy] / [ed] Thomas H. Christensen, Cagliari: CISA, Environmental Sanitary Engineering Centre , 1997, p. 281-292Conference paper (Refereed)
  • 332. Maurice, Christian
    et al.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Seasonal variation of landfill gas emissions1997In: Sardinia 97: proceedings ; [13 - 17 October 1997, S. Margherita di Pula - Cagliari, Sardinia, Italy] / [ed] Thomas H. Christensen, Cagliari: CISA, Environmental Sanitary Engineering Centre , 1997, p. 87-93Conference paper (Refereed)
  • 333. Ecke, Holger
    et al.
    Maurice, Christian
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Anaerobic digestion plants for the treatment of organic MSW1996Report (Other academic)
  • 334. Ecke, Holger
    et al.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Anaerobic treatment of hexavalent chromium- and chlorate-bearing industrial filter sludge1996Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 335. Ecke, Holger
    et al.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Anaerobic treatment of hexavalent chromium- and chlorate-bearing leachate1996In: 12th International conference on solid waste technology and management, 1996Conference paper (Refereed)
  • 336.
    Bergman, Anders
    et al.
    Luleå University of Technology.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Carbonate precipitation in alkaline wastes1996In: 12th International conference on solid waste technology and management, 1996Conference paper (Refereed)
    Abstract [en]

    Carbonate precipitation is known to occur in landfilled ashes and is often reported as a problem because of the precipitates tendency to clog drains and other leachate transport facilities. The Up-take of carbon dioxide by alkaline wastes and leachates will influence their properties e.g.; The hydraulic and gas conductivity of solid wastes will decrease as carbonates precipitate in the pores of the waste. The pH will change towards neutral values as carbonates form changing the mobility of metals and other elements A neutral pH will also allow biological reactions to act on the waste, especially if the waste contain organic material as e.g. ashes often do. Adding carbon dioxide to wastes can thus be a cheap and powerful treatment, yielding a less hazardous waste.

  • 337.
    Bogner, Jean E.
    et al.
    Argonne National Laboratory, Argonne, IL.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Early diagenesis of garbage: landfills as engineered anoxic basins1996In: Geological Society of America, 28th annual meeting, Denver, CO, United States, Oct. 28-31, 1996, Geological Society of America, 1996, p. 257-Conference paper (Other academic)
    Abstract [en]

    Early diagenesis of buried organic carbon in anoxic basins is dominated by microbial decomposition processes at temperatures and pressure slightly above ambient. Such conditions also describe decomposition of refuse in sanitary landfills and provide a reasonable model for systematic studies of their long-term geochemistry. For shorter time frame (decades), controlled high-solids anaerobic digestion systems provide a second model for investigation of optimized landfill systems. In this paper, we introduce both models through a series of preliminary mass-balances to develop a realistic overview of landfill processes, especially emphasizing carbon cycling in field settings over various time-frames. The terminal product of short-term anaerobic decomposition is methane--produced by methanogenic bacteria from some fraction of organic carbon landfilled. Laboratory studies of optimized landfill systems (ours and from the literature) indicate that, at best, 25-45% of organic carbon is converted to biogas carbon (methane and carbon dioxide); such percentages are rarely attained in field settings. Most of the methane is produced from cellulosic substrates while lignin substrates are recalcitrant, with lignin carbon entering sedimentary storage for time frames longer than the four decades of widespread landfilling experience in the U.S. and western Europe. Over time frames in excess of centuries, further transformations via kerogen pathways are possible but highly speculative. Certainly, exhumation of old refuse at archeologic sites indicates that organic carbon preservation can be documented for at least one or two millenia. From controlled incubation of unamended field samples and from field studies of net methane emissions, it is clear that rates of methane production and consumption both vary of several orders of magnitude in field settings; their dynamic are rapid and complex spatially and temporally. Unraveling these dynamics is necessary to suggest the overall relevance of these engineered anoxic basins to issues of atmospheric methane increases and terrestrial carbon storage.

  • 338.
    Lagerkvist, Anders
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Forsberg, Thomas
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
    Maurice, Christian
    Kolbalanser vid testceller1996In: Symposium om svensk upplagsforskning 1996 / [ed] Anders Lagerkvist, Malmö: Svenska renhållningsverks-föreningens Service AB , 1996, p. 119-145Conference paper (Other academic)
    Abstract [en]

    Under periodenn 1992-94 har gasemissioner studerats vid testceller ingående i projektet "Samordnad deponigas-FUD" (i Malmö, Helsingborg och Upplands Bro). Syftet med dessa mätningar har varit att bestämma gasbildningen och gasutvinningens effektivitet i olika celler

  • 339.
    Lagerkvist, Anders
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Maurice, Christian
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Landfill carbon balances1996In: The second Conference on environmental management technology and development: Johannesburg, SA, 7-8 October, South African Institution of Civil Engineers , 1996Conference paper (Refereed)
  • 340.
    Lagerkvist, Anders
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Ecke, Holger
    Landfill strategy, test-cells, and the future: initial investigations1996In: 19th Annual landfill gas symposium: March 19-21, 1996 : conference proceedings, Silver Spring, MD: Solid waste association of North America , 1996, p. 101-116Conference paper (Refereed)
  • 341. Ecke, Holger
    et al.
    Bergman, Anders
    Luleå University of Technology.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Multivariate data analysis (MVDA) in landfill research1996In: Proceedings of the 12th International Conference on Solid Waste Technology and Management, Indiana University of Pennsylvania, 1996Conference paper (Refereed)
    Abstract [en]

    Multivariate data analysis (MVDA), a new statistical approach in terms of landfill research, was performed on the evaluation of three investigations. It gains advantage over classical statistical methods when multiple variables and their interactions have to be considered. In addition, it is tolerant for incomplete datasets. MVDA techniques as follows were applied: principal component analysis (PCA), partial least squares modelling (PLS) and partial least squares discriminant analysis (PLS-DA). The interrelationships among variables as well as variation between observations could be examined and illustrated by a few plots.

  • 342.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Symposium om svensk upplagsforskning 19961996Collection (editor) (Other academic)
  • 343.
    Maurice, Christian
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Bergman, Anders
    Luleå University of Technology.
    Ecke, Holger
    Vegetation som biologisk indikator för deponigasavgång: en bakgrundsstudie1996In: Symposium om svensk upplagsforskning / [ed] Anders Lagerkvist, Malmö: Svenska renhållningsverks-föreningens Service AB , 1996, p. 169-179Conference paper (Other academic)
    Abstract [sv]

    Det finns ett behov av att kunna uppskatta gasavgången från ett helt upplag och under en längre period. Växtligheten som finns på plats året runt och som påverkas kontinuerligt skulle kunna användas som indikator eftersom deponigas kan ha en skadlig inverkan på växterna. I projektet har hypotesen att vissa arter skulle vara "typiska" för en viss avgångsnivå prövats.

  • 344.
    Chen, H.
    et al.
    Luleå University of Technology.
    Ecke, Holger
    Kylefors, K.
    Luleå University of Technology.
    Bergman, Anders
    Luleå University of Technology.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Biochemical methane potential assays of solid waste samples1995In: Sardinia 95: proceedings ; [2 - 6 October 1995, S. Margherita di Pula - Cagliari, Sardinia, Italy] / [ed] Thomas H. Christensen, Cagliari: CISA, Environmental Sanitary Engineering Centre , 1995, Vol. 1, p. 615-627Conference paper (Refereed)
  • 345.
    Lagerkvist, Anders
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Ecke, Holger
    Deponierungsstrategie, Versuchsfelder und die Zukunft1995In: Barbara-Gesprächen: Geogen-Anthropogen, 1995Conference paper (Other academic)
  • 346.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Landfill gas activity of the IEA bioenergy agreement1995In: Biomass and Bioenergy, ISSN 0961-9534, E-ISSN 1873-2909, Vol. 9, no 1-5, p. 399-413Article in journal (Refereed)
    Abstract [en]

    Landfill gas (LFG) is a renewable source of useful energy. Its world wide annual energy potential is in the range of a few hundred TWh. Today it is only marginally exploited. LFG is also an important contributor to the atmospheres CH4-content, it can be estimated to contribute about 25% of the methane coming from anthropogenic sources. In comparison to many other sources of methane emissions such as peat bogs, rice paddies, termites and sheep, landfills can be considered to be point sources, i.e. they are stationary and of limited extension. For this reason landfill gas (LFG) utilisation is one of the most cost effective ways to combat the greenhouse effect. The aim of the IEA activity on LFG is to promote information exchange and co-operation between national programmes in order to promote the proliferation of landfill gas utilisation. During the period 1992–1994 the LFG activity has had six participating countries: Canada, Denmark, Norway, The Netherlands, Sweden, UK and USA. In the past three-year period, the activity has been mainly directed towards establishing networks and obtaining an over-view of data related to LFG in the member countries. Numerous contacts have been established and perhaps of most importance for the future of the activity are the links towards organisations involved in the development of landfill technology, such as ISWA and SWANA. The gathering and evaluation of data within the LFG area from the member countries has resulted in a number of documents that are to be published within the near future. These documents cover information on LFG utilisation, landfill research, landfill gas potentials, landfill emission assessment and also non-technical barriers to LFG utilisation.

  • 347.
    Kylefors, Katarina
    et al.
    Luleå tekniska universitet.
    Grennberg, Kerstin
    Luleå tekniska universitet.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Local treatment of landfill leachates1995In: Wetland systems for water pollution control 1994: selected proceedings of the 4th International Conference on Wetland Systems for Water Pollution Control, held in Guangzhou, China, 6-10 November, 1994 / [ed] R.H. Kadlec ; H. Brix, Oxford: Pergamon Press, 1995, p. 539-548Conference paper (Refereed)
    Abstract [en]

    Experiments were carried out to evaluate the effect of different leachates on the germination of garden cress (Lepidum sativum) and on the growth of birches (Betula pendula). Untreated leachates, if of anaerobic origin, proved unsuitable for watering, negatively affecting both germination and growth. Such leachates would have to be pre-treated prior to being used for watering. The nutrient balance of the 5 studied leachates differed. A more optimal nutrient composition may be achievable by mixing different pre-treated leachates which would call for different wastes and leachates to be kept separate

  • 348.
    Hagelberg, M.
    et al.
    Vattenfall Engergisystem AB.
    Chen, H.
    Luleå tekniska universitet.
    Pousette, Kerstin
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Tvåstegs anaerob nedbrytning av mekaniskt avskild råkompost vid Björnhyttans avfallsanläggning i Ludvika kommun: utvärdering och provdrift1995Report (Other academic)
  • 349.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Tvåstegs anaerob nedbrytning: en alternativ behandlingsteknik för upplagt hushållsavfall1995Doctoral thesis, comprehensive summary (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 350.
    Maurice, Christian
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Bergman, Anders
    Luleå tekniska universitet.
    Ecke, Holger
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Vegetation as a biological indicator for landfill gas emissions: initial investigations1995In: Sardinia 95: 5th International landfill symposium : Papers / [ed] Thomas H. Christensen, Cagliari: CISA, Environmental Sanitary Engineering Centre , 1995, Vol. 3, p. 481-494Conference paper (Refereed)
45678 301 - 350 of 374
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