Essays about: "primary sludge"

Showing result 21 - 25 of 37 essays containing the words primary sludge.

1. 21. Pretreatment Methods for Manganese Containing Anode Sludge

   University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Author : Johan Stenman; [2017]
   Keywords : Manganese; Zinc; Lead; Strontium; Reduction; Anode; Sludge; Slime; Metallurgy; Pyrometallurgy; Chamber; Rotary; Furnace; Agglomeration;

   Abstract : This master thesis work examines whether it is possible to separate lead from an electrolytic sludge rich in manganese using pyrometallurgical treatment, and also attempts to determine the optimum process parameters for such a treatment. It also includes a theoretical study of the possible applications for lead and manganese, as well as thermodynamic calculations predicting the behaviour of the material at increasing temperatures. READ MORE

3. 22. 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. 23. Evaluation of the effect of different SCOD/TN ratios in a mainstream nitritation process

   University essay from Lunds universitet/Kemiteknik (CI)

   Author : Doaa el Halabi; [2017]
   Keywords : Partial nitrification; nitritation; microscreen; filtration; Chemical oxygen demand; moving bed biofilm reactor; Partial nitrification anammox; PNA.; Technology and Engineering;

   Abstract : Avloppsvatten är rikt på organiskt material, det organiska materialet har med fördel använts för biogasproduktion. Den traditionella kvävereningsprocessen kräver organiskt material, därför har ett extern organiskt material använts. READ MORE

5. 24. 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

6. 25. Evaluation of an Extended Aeration System for Nutrient Removal, A Case Study of a Wastewater Treatment Plant in Kulai, Johor Baharu, Malaysia

   University essay from Lunds universitet/Kemiteknik (CI)

   Author : Caroline Ingvar-Nilsson; Naima Forså; [2016]
   Keywords : Nutrients; Nitrogen; Extended Aeration; Nitrification rate; Phosphorus; Volatile Fatty Acids; Activated Sludge; Bio-P; water engineering; environmental engineering; vattenförsörjningsteknik; avloppsteknik; Technology and Engineering;

   Abstract : Malaysia is one of the most developed countries in Southeast Asia, and strives to be acknowledged as a high income country by the year of 2020. According to Malaysian Environmental Quality (Sewage) Regulations from 2009 there are effluent limitations regarding nutrient emission from wastewater treatment plants. READ MORE