Essays about: "primary sludge"

Showing result 16 - 20 of 37 essays containing the words primary sludge.

1. 16. Investigation of Readily Degradable Carbon Source Production by Hydrolyzing Sludge and Reject water at Ängen planned WWTP

   University essay from Lunds universitet/Kemiteknik (CI)

   Author : Kartika Novitasari Pranoto; [2020]
   Keywords : EBPR; activated sludge; primary sludge; reject water; hydrolysis rate; hydrolysis yield; VFAs; pH; water engineering; environmental engineering; vattenförsörjningsteknik; avloppsteknik; Technology and Engineering;

   Abstract : As form of effort to mitigate the increase of pollution level that caused by human activity, Ängen wastewater treatment plant (WWTP) will be built in Lidköping as part of the European LIFE project (LIWE LIFE). Ängen WWTP will be operated based on enhanced biological phosphorus removal (EBPR) technology. READ MORE

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

   University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

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

   Abstract : 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. READ MORE

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

   University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

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

   Abstract : 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. READ MORE

5. 19. Using LCA and LCC in Planning Industrial Symbiosis : A study of the handling of sewage sludge in Malmö, Sweden

   University essay from Linköpings universitet/Industriell miljöteknik

   Author : Mårten Wiktor; Izabelle Johansson; [2018]
   Keywords : Sewage sludge; LCA; LCC;

   Abstract : Sewage sludge is currently being disposed by spreading it out on fields, an action that recycles important nutrients such as phosphorus, but also leads to heavy metal contamination. With impeding regulation changes, possibly making it harder or impossible to keep current practice, waste water treatment plants are reviewing their options. READ MORE

6. 20. Production of volatile fatty acids by hydrolysing sludge from Sjölunda WWTP

   University essay from Lunds universitet/Kemiteknik (CI)

   Author : Simon Gidstedt; [2017]
   Keywords : wastewater treatment plant; WWTP; activated sludge; primary sludge; sludge; batchwise hydrolysis; hydrolysis; Volatile fatty acids; VFA; water engineering; environmental engineering; Chemistry;

   Abstract : The biological nutrient removal (BNR) processes at Wastewater Treatment Plants (WWTPs) require easily degradable carbon, such as volatile fatty acids (VFAs), to work efficiently. Because of economical, and environmental reasons it is desired to utilize the organic content in the incoming wastewater instead of using an external carbon source. READ MORE