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  • 351.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Arbetsgruppen för deponigas, IEA1994In: RVF-nytt, ISSN 0284-1827, Vol. 8, no 1, p. 32-33Article in journal (Other academic)
    Abstract [en]

    Deponigasgruppen inom International Energy Agency består av forskare och experter inom deponigasonrådet från 7 länder, bl a Danmark, Norge och Sverige. En viktig uppgift för gruppen är att sammanställa data angående deponigasanläggningar i de olika länderna och speciellt hur deponigas kan användas för olika energiändamål. Sammanställningarna ingår i en internationell databas över deponigasanläggningar

  • 352. Ecke, Holger
    et al.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Analysis of anaerobically treated MSW by sequential leaching1993In: Sardinia '93: barrier systems, environmental aspects, upgrading and remediating, siting, monofills, effects of waste pretreatment, landfilling in developing countries ; 11 - 15 October 1993, S. Margherita di Pula (Cagliari), Sardinia, Italy ; proceedings / [ed] Thomas H. Christensen, Cagliari: CISA, Environmental Sanitary Engineering Centre , 1993, p. 1779-1785Conference paper (Other academic)
  • 353. 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.
    Behandling av cyanidhaltigt avfall på upplag: förstudie1993Report (Other academic)
  • 354.
    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.
    Behandling av fetthaltigt slam1993Report (Other academic)
    Abstract [sv]

    Fetthaltigt slam genereras från restauranger och livsmedelsindustrier. Slammet samlas upp i fettavskiljare, vilka är placerade på serviceledningarna i avloppssystemet. I rapporten redovisas olika försök med biologisk behandling av fettslam. Därutöver berörs bland annat problem med fett i avloppsnäten, vad fett är och hur fett bryts ned

  • 355.
    Lagerkvist, Anders
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Chen, Huiting
    Luleå University of Technology.
    Control of two step anaerobic degradation of municipal solid waste (MSW) by enzyme addition1993In: Water Science and Technology, ISSN 0273-1223, E-ISSN 1996-9732, Vol. 27, no 2, p. 47-56Article in journal (Refereed)
    Abstract [en]

    The addition of cellulolytic enzymes to MSW has been tried under methanogenic and acidogenic conditions in 0.1 m3 landfill models. An enhanced degradation seems to follow the enzyme addition in both cases. During acidogenic conditions the observed conversion of cellulose was 42 and 29% respectively, with and without enzyme addition. The enzyme addition did not result in a change from methanogenic to acidogenic conditions. A similar conversion of VS can be achieved during methanogenic and acidogenic conditions; at the completion of this experiment the conversion of VS was in excess of 50% in the methanogenic models and somewhat lower than 40% in the acidogenic models (the latter still yielding strong leachates). The results of some standard waste-water analyses were compared and it is concluded that especially acid leachates may cause analytical problems.

  • 356.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Symposium om svensk upplagsforskning 19931993Collection (editor) (Other academic)
  • 357.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Anaeroba barriärer: en tänkbar strategi för återföring av avfall till naturens kretslopp1992Report (Other academic)
  • 358.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Metangasutvinning, praktiska erfarenheter av styrd avfallsuppläggning: samordnad deponigas-fud. tvåstegs anaerob nedbrytning - en alternativ driftteknik vid avfallsupplag1991In: RVF:s tekniska möte 1991: vägval inför framtida avfallsbehandling, Borlänge 5-6 november 1991, 1991, p. J1-J14Conference paper (Other academic)
  • 359.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Internationell utblick inom upplagsteknik: beskrivning av gängse teknik och aktuell utveckling1989Report (Other academic)
  • 360. 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.
    State-of-the-art treatment processes for municipal solid waste incineration (MSWI) residues in Japan1989In: Svenskt symposium om upplagsforskning 1998: Third Swedish landfill research symposia 1998, 1989, p. 23-24Conference paper (Other academic)
  • 361.
    Nordell, Bo
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Architecture and Water.
    Nordmark, Desiree
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Laboratorieförsök med vatten i virvelrörelse: Mätning av fysikaliska egenskaper1988Report (Other academic)
    Abstract [sv]

    Vattnet stängdes in i ett äggformat kärl med en rotator i botten. En liten lufvolym lämnades i toppen och syrehalt pH mm mättes under de olika försöken.

    Download full text (pdf)
    FULLTEXT01
  • 362.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Gassammansättning i upplag innehållande hushållsavfall: litteratur- och fältstudie1987Report (Other academic)
  • 363.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Styrd nedbrytning: modellstudier : delrapport 31987Report (Other academic)
  • 364.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Landfill strategy1986Report (Other academic)
  • 365.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Om nedbrytnings- och transportprocesser i avfallsupplag1986Licentiate thesis, monograph (Other academic)
    Download full text (pdf)
    fulltext
  • 366.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Upplagsstrategier: nuvarande praxis - framtida möjligheter1986Report (Other academic)
  • 367. Evertsson, U.
    et al.
    Höbeda, P.
    Tiberg, Nils
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Utnyttjning av slagg från avfallsförbränning: och miljömässiga undersökningar och praktiska erfarenheter1986Report (Other academic)
  • 368.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Utlakningsförsök med aska från sopförbränning1985Report (Other academic)
  • 369.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Utlakningsförsök med stoft från sopförbränning1985Report (Other academic)
  • 370.
    Lagerkvist, Anders
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Karlsson, Birgitta
    Integrerat transportsystem för källsorterat hushållsavfall1984In: Bygg & Teknik, ISSN 0281-658X, no 5, p. 16-18Article in journal (Other (popular science, discussion, etc.))
  • 371.
    Lagerkvist, Anders
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Karlsson, Birgitta
    Renhållningens mål genom tiderna1984In: Bygg & Teknik, ISSN 0281-658X, no 5, p. 34-35Article in journal (Other (popular science, discussion, etc.))
  • 372.
    Lagerkvist, Anders
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Karlsson, Birgitta
    Luleå tekniska universitet.
    Integrerat transportsystem för källsorterat hushållsavfall: en konsekvensstudie1983Report (Other academic)
    Download full text (pdf)
    fulltext
  • 373.
    Marklund, Erik
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Andreas, Lale
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Characterization and mechanical separation of organic matter in construction and demolition waste finesManuscript (preprint) (Other academic)
    Abstract [en]

    Construction and demolition waste (CDW) amounts to a large fraction of produced waste. 37 %-58 % was found to be fines. Wood is a common building material in the Nordic countries, so CDW fines have a high organic content. Typically, CDW fines are landfilled, but due to the high content of total organic carbon (TOC), this is not allowed. In order to investigate potential treatments or uses of these fines, they were characterized, with focus on their organic content. The potential for mechanical separation was tested by sieving and by float-sink separation in water. The organic content is higher in the larger and lighter particles. Mechanical separation by particle size using a 10 mm screen is not likely to consistently produce an under sieve fraction with low TOC content (<10 %). After float-sink separation, the sink fraction still contains 9-42% volatile solids (VS). However, based on tests of biogas potential and respiration activity, the biological activity of the sink fraction can be considered low. This is confirmed by thermogravimetric analysis, showing an organic carbon (OC) content of only 1-2 %. The TOC (measured by CO2 formation) is up to nine times higher than the OC, indicating that the TOC is not a reliable assay to measure organic carbon. Further studies will show if screening up to 10 mm, or screening in combination with density separation can yield a low TOC fraction for landfilling.

  • 374.
    Marklund, Erik
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Andreas, Lale
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering.
    Lagerkvist, Anders
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    The impacts of environments on waste: Part 1: The influence of thermal environments on organic wastesManuscript (preprint) (Other academic)
5678 351 - 374 of 374
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