Sökning: "semi-continuous experiment"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden semi-continuous experiment.

  1. 1. Volatile fatty acid production from co-fermentation of primary sludge and food waste without pH control

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Binyam Bedaso; [2019]
    Nyckelord :Volatile fatty acid; Co-fermentation; Primary sludge; Food waste;

    Sammanfattning : The production of volatile fatty acids (VFAs) from waste stream is gaining high attention because of their high market value and wide range of applications. In this study, the production of VFA from co-fermentation of primary sludge from wastewater treatment plant and food waste without pH control was evaluated using a pilot-scale reactor in a semi-continuous mode of operation. LÄS MER

  3. 2. Semi-kontinuerlig samrötning av ensilerat våtmarksgräs och matavfall : En studie av metan utbyte

    Master-uppsats, Karlstads universitet/Avdelningen för energi-, miljö- och byggteknik

    Författare :Sebastian Leijen; [2017]
    Nyckelord :;

    Sammanfattning : Världens ökande energibehov och önskan om att minimera konsekvenserna av klimatförändringen har gjort att flera miljömål tagits fram både på nationella och internationella nivåer. Mycket resurser läggs ner på att utveckla nuvarande förnyelsebara energikällor och hitta nya alternativ till de fossila bränslena. LÄS MER

  4. 3. Biological phosphorus removal from wastewater with a moving bed biofilm reactor process

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Rebecca Arvidsson; [2015]
    Nyckelord :biological wastewater treatment; EBPR; MBBR; denitrifying phosphorus removal; vattenförsörjningsteknik; avloppsteknik; water engineering; environmental engineering; Technology and Engineering;

    Sammanfattning : The human population is increasing and more wastewater, rich in nutrients, is produced. Increased levels of nutrients such as phosphorus, nitrogen and organic matter in water bodies present a risk for eutrophication, toxicity to the water-living fauna and oxygen depletion. LÄS MER

  5. 4. Rapid Bio-methanation of Syngas by High Cell-density in Reverse Membrane Bioreactors

    Master-uppsats, Högskolan i Borås/Institutionen Ingenjörshögskolan

    Författare :Konstantinos Chandolias; [2014]
    Nyckelord :syngas; fermentation; reverse; membrane; bioreactor; bio-methanation; high cell density;

    Sammanfattning : Syngas fermentation via gasification is a two-stage process, which contains gasification of feedstock into syngas and syngas bio-methanation by anaerobic microorganisms. This project is a study on syngas fermentation. The gasification feedstock can be difficult-to-degrade solid waste so; waste volumes are reduced while green energy is produced. LÄS MER

  7. 5. Continuous co-digestion of agro-industrial residues

    Magister-uppsats, Högskolan i Borås/Institutionen Ingenjörshögskolan

    Författare :Chuthathip Siripong; Supusanee Dulyakasem; [2012]
    Nyckelord :Biogas; slaughterhouse waste; co-digestion; semi-continuous experiment; CSTR;

    Sammanfattning : Slaughterhouse waste (SB) has high potential to be utilized in anaerobic digestion due to its high protein and lipid content. However, these are also the limiting factors of system stability. LÄS MER