Sökning: "UASB"

Visar resultat 6 - 10 av 19 uppsatser innehållade ordet UASB.

  1. 6. Strategies of improvement ofUASB reactor operation

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

    Författare :Daria Klesyk; [2017]
    Nyckelord :;

    Sammanfattning : The Upflow Anaerobic Sludge Blanket (UASB) reactor is one from the most widely used anaerobic technology to remove organic matter from wastewater, popular mostly in countries with warm climate but use all over the world. UASB reactor have mainly advantages: during organic matter removal biogas is produced, low energy consumption and simplicity of work. LÄS MER

  3. 7. Evaluation of Nitration/Anammox process by bacterial activity tests.

    Master-uppsats, KTH/Mark- och vattenteknik

    Författare :Anna Mika; [2015]
    Nyckelord :Partial Nitritation Anammox process; Integrated fixed-film acti-vated sludge IFAS reactor; Batch tests; Specific Anammox Activity SAA ; Nitrate Uptake Rate NUR ; Oxygen Uptake Rate OUR ; Ammonium Oxi-dizing Bacteria AOB ; Nitrite Oxidizing Bacteria NOB ; Heterotrophic bac-teria;

    Sammanfattning : Partial Nitritation/Anammox process (deammonification process), by which occurs oxidation of ammonium to nitrogen gas by autotrophic bacteria in anaerobic conditions, considered to be cost-effective and environmentally friendly method of nitrogen removal. Present research work focuses on achieving a high nitrogen removal degree, thanks to Anammox bacteria, while providing the best performance of the ongoing process. LÄS MER

  4. 8. Factors increasing efficiency of deammonification process for nitrogen removal from mainstream wastewater.

    Master-uppsats, KTH/Mark- och vattenteknik

    Författare :Aleksandra Wur; [2014]
    Nyckelord :partial nitritation Anammox process; lab-scale reactors; batch;

    Sammanfattning : In recent years, the use of Anammox process for wastewater treatment has been thoroughly investigated. Currently, a major challenge is to use this process for the mainstream. LÄS MER

  5. 9. Bestämning av metanpotential hos blåmusslor och nötgödsel

    M1-uppsats, Institutionen för bygg- och energiteknik (BE)

    Författare :Marcel Said; Mattias Ohlsson; [2013]
    Nyckelord :Biogas; Metanpotential; musslor; nötgödsel; rötning;

    Sammanfattning : Kraftig övergödning i Östersjön leder till ökad blomning av alger som medför syrebrist i havet. Musselodling kan ses som en åtgärd för problemet. På den svenska östkusten beräknas skördningen av musslor vara på ca 65 000 ton/år. LÄS MER

  7. 10. UV pretreatment of Alkaline Bleaching Wastewater from a Kraft Pulp and Paper Mill prior to Anaerobic Digestion in a Lab scale UASB Reactor

    Master-uppsats, Tema vatten i natur och samhälle; Filosofiska fakulteten

    Författare :Marielle Karlsson; [2013]
    Nyckelord :Anaerobic digestion; biogas; UV pretreatment; UV H2O2; UASB; EOP wastewater; lignin; kraft pulp and paper mill;

    Sammanfattning : The effects of UV pretreatment on alkaline bleaching (EOP) wastewater from a kraft pulp and paper mill were investigated prior to anaerobic digestion (AD) in an upflow anaerobic sludge blanket (UASB) reactor. The aim was to enhance the methane production, increase the reduction of total organic carbon (TOC) and determine the best UV exposure time. LÄS MER