Sökning: "Primärslam"

Visar resultat 1 - 5 av 14 uppsatser innehållade ordet Primärslam.

1. 1. Modeling of the primary sludge thickening process at a wastewater treatment plant with the use of machine learning

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Eric Bröndum; [2022]
   Nyckelord :Machine Learning; Stockholms Vatten och Avfall; Primary Sludge; Dewatering; Wastewater Treatment Plant; Simulation; time series prediction; Maskininlärning; Stockholms Vatten och Avfall; Primärslam; Förtjockning; Avloppsreningsverk; Simulering; Tidsserieprediktion;

   Sammanfattning : This thesis focuses on modeling the primary sludge in the thickening process at Henrikdals wastewater treatment plant in Stockholm, Sweden. The thickening process is one of the core processes at the wastewater treatment plant, where the goal is to thicken a residual product called primary sludge. LÄS MER

3. 2. Evaluating the suitability of carbon source from fermentation of primary filter sludge for biological nutrient removal

   Master-uppsats, Lunds universitet/Kemiteknik (CI)

   Författare :Sanna Sahlin; [2021]
   Nyckelord :Wastewater treatment; batch activity tests; NUR tests; anaerobic P release tests; EBPR; denitrification; removal rates; internal carbon source; fermentate; water and environmental engineering; Technology and Engineering;

   Sammanfattning : Traditional biological nutrient removal (BNR) processes in wastewater treatment require access to easily biodegradable carbon in order to achieve sufficient removal. However, a lot of the carbon in the influent wastewater is not directly available for BNR bacteria but need to undergo hydrolysis first. LÄS MER

4. 3. Thermophilic anaerobic digestion of municipal wastewater sludges: A pilot scale evaluation with model assistance

   Master-uppsats, KTH/Kemiteknik

   Författare :Ted Lundwall; [2021]
   Nyckelord :Thermophilic anaerobic digestion; Pilot; Municipal wastewater; Biogas; ADM1; Termofil rötning; Pilot; Kommunalt avloppsvatten; Biogas; ADM1;

   Sammanfattning : I takt med att städerna växer ökar belastningen på de kommunala avloppsreningsverken. Käppalaförbundet förutspår att antalet anslutna personekvivalenter till Käppalaverket kommer att öka med över 160 % under de kommande tre decennierna. En ökad belastning leder till en större mängd slam som måste behandlas. LÄS MER

5. 4. 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

7. 5. 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