Sökning: "sludge"

Visar resultat 16 - 20 av 401 uppsatser innehållade ordet sludge.

  1. 16. Pre-acidification of a Synthetic Dairy Wastewater in Continuously Stirred Tank Reactors

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Can Xiong; [2019]
    Nyckelord :pre-acidification process; hydraulic retention time; soluble chemical oxygen demand transformation into fermentation product; volatile fatty acids; distribution; water engineering; environmental engineering; vattenförsörjningsteknik; avloppsteknik; Earth and Environmental Sciences; Technology and Engineering;

    Sammanfattning : Two-stage anaerobic digestion is considered as a sustainable and efficient way to deal with dairy effluent, and is commonly applied. The pre-acidification happening during the first stage of this process could be used to buffer the complex conditions in the initial dairy effluent, as well as produce intermediary product such as volatile fatty acids (VFA), and it is essential to be controlled. LÄS MER

  2. 17. Application of volatile fatty acids from waste as an external carbon source for the denitrification process

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

    Författare :Chengyang Pan; [2019]
    Nyckelord :Volatile fatty acids VFAs ; Denitrification; External carbon sources; Wastewater treatment; Manometric method; Flyktiga fettsyror VFAs ; Denitrifikation; Externa kolkällor; Avloppsrening; Manometrisk metod;

    Sammanfattning : The gap between resource demand for the industrialized world and non-renewable feedstock like fossil fuels, essential agricultural fertilizer is getting increasingly severe, which has resulted in alarming-increasingly impacts on worldwide environmental problems. Meanwhile, wastewater treatment plants (WWTPs), as an essential facility for urbanization, is also confronting new rising challenges such as energy consumption and operation costs rather than only improving effluent wastewater quality. LÄS MER

  3. 18. Energieffektivisering och förbättrat resursutnyttjande vid Främby avloppsreningsverk i Falun

    Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Energy and Technology

    Författare :Maria Silfwerin; [2019]
    Nyckelord :Energikartläggning; biogas; slam; rötning; membranbioreaktor; aktivslamprocess;

    Sammanfattning : Främby wastewater treatment plant, a 50 000 population equivalent (pe) municipal sewage treatment plant in Falun, faces large changes as aging technology, increasing load and stricter effluent quality requirements lead to a demand for upgrading the plant. The owner of the plant, Falu Energi & Vatten (FEV), have a vision of an energy neutral plant in the future. LÄS MER

  4. 19. Detaljkonstruktion av tvättmaskin för anodpåsar

    Uppsats för yrkesexamina på grundnivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Hasan Hasan; [2019]
    Nyckelord :Anodpåse; ädelmetaller;

    Sammanfattning : The silver refining process is a extracting of pure silver which happen in large tanks filled with silver nitrate electrolyte solution. In each tank there are 6 Doré anodes, where they are placed in anode bag. LÄS MER

  5. 20. Anammox in IFAS reactor for reject water treatment

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

    Författare :Bingquan Chen; [2019]
    Nyckelord :Deammonification; IFAS; Online sensors; Partial nitritation Anammox; Reject water; Specific anammox activity;

    Sammanfattning : The aim of this study was to evaluate the performance of the integrated fixed-film activated sludge (IFAS) reactor achieving partial nitritation/anammox process to treat reject water after dewatering of digested sludge. During the study period, dissolved oxygen setpoint, aeration mode and inflow loading were changed to evaluate their influence on the process performance and efficiency in the reactor. LÄS MER