Essays about: "digested sludge"

Showing result 11 - 15 of 34 essays containing the words digested sludge.

  1. 11. 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

  3. 12. Recovery of Phosphorus from Incineration of Sewage Sludge

    University essay from KTH/Skolan för kemivetenskap (CHE)

    Author : Aditi Bhasin; [2017]
    Keywords : ;

    Abstract : The primary source of phosphorus, phosphate rock, is a non-renewable resource which is expected to get exhausted in the next 50 – 100 years. Sewage sludge in Sweden constitutes 25% of the annual phosphorus in the country, making it a potentially significant source for phosphorus recovery. READ MORE

  4. 13. Anaerobic digestion trials with HTC process water

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Erik Nilsson; [2017]
    Keywords : anaerobic digestion; HTC; process water; hydrochar; AMPTS; BMP; primary sludge; digestate; rötning; HTC; processvatten; biokol; AMPTS; BMP; primärslam; rötningsslam;

    Abstract : Hydrothermal carbonization (HTC) is a process where elevated temperature and pressure is used in order to convert biomass to hydrochar, a coal-like substance with good dewatering properties and many potential uses. HTC can be used to treat digestate from anaerobic digestion, but the process water that remains after the hydrochar has been recovered needs to be treated further in the wastewater treatment plant. READ MORE

  5. 14. Assay of nitrification potentials in sewage sludge : development and evaluation of method, and nitrification potentials in sewage sludge before and after application to soil

    University essay from SLU/Dept. of Microbiology

    Author : Caroline Jöngren; [2016]
    Keywords : Sewage sludge; nitrification potentials; PAO; sanitations treatment; ammonium; storage treatments; nitrous oxide; Nitobacteriacea; Nitrosomona;

    Abstract : Sewage sludge (SS) contains valuable plant nutrients applicable to soil as fertilizer. Application to arable land is though controversial as SS can contain contains such as human pathogens, heavy metals and xenobiotics. READ MORE

  6. 15. Microalgae : A Green Purification of Reject Water for Biogas Production

    University essay from Linköpings universitet/Institutionen för fysik, kemi och biologi

    Author : Sandra Waern; [2016]
    Keywords : Microalgae; wastewater treatment; reject water; nutrient removal; SHARON; biofuel; biogas;

    Abstract : Microalgae are a diverse group of unicellular microorganisms found in various environments, ranging from small garden ponds to lakes with extreme salinity. Common for all microalgae is their ability to convert solar energy and carbon dioxide into chemical energy via photosynthesis. READ MORE