Search for dissertations about: "Biogas effluent"

Showing result 1 - 5 of 10 swedish dissertations containing the words Biogas effluent.

2. 1. Anaerobic Digestion of Solid Residues on the Bolivian Altiplano

   Author : Rene Alvarez; Avdelningen för kemiteknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bioteknik; Biotechnology; Altiplano; renewable energy; temperature fluctuation; low temperature; farm-scale digestion; manure; solid residues; Anaerobic Digestion; biogas;

   Abstract : Anaerobic digestion and the production of biogas can provide an efficient means of meeting energy needs locally and reducing organic loading due to untreated waste material in water recipients. Furthermore, residues after anaerobic digestion may be used as a fertilizer to improve the soil in many parts of the world. READ MORE

4. 2. Reactor Applications and Process Monitoring for Improved Anaerobic Digestion

   Author : Tor Gunnar Jantsch; Bioteknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; pH-indicators; spectrophotometric; Biotechnology; Bioteknik; alkalinity; monitoring; UASB reactor; spent sulphite liquor; caustic extraction liquor; sulphite evaporator condensate; pulp wastewater; Anaerobic digestion; biogas;

   Abstract : Biogas, a mixture of methane and carbon dioxide, is produced by microorganisms upon degradation of organic matter in an anaerobic environment. It has been realised that by utilising anaerobic processes the organic pollutants in wastewater and organic solid waste from anthropogenic sources can be converted into a renewable source of energy. READ MORE

5. 3. Anaerobic Treatment of Agricultural Residues and Wastewater - Application of High-Rate Reactors

   Author : Wilson Parawira; Bioteknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biochemical technology; Biokemisk teknik; opaque beer brewery wastewater; UASB; two-stage; co-digestion; sugar beet leaves; solid potato waste; methane yield; biogas; Anaerobic digestion; agricultural residues;

   Abstract : The production of methane via anaerobic digestion of agricultural residues and industrial wastewater would benefit society by providing a clean fuel from renewable feedstocks. This would reduce the use of fossil-fuel-derived energy and reduce environmental impact, including global warming and pollution. READ MORE

6. 4. Heat-transfer Enhancement for Slurries from Biogas Plants− Properties, processes, and thermal systems

   Author : Jingjing Chen; Xiaoyan Ji; Bona Lu; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; heat-transfer enhancement; slurry; rheological properties; computational fluid dynamics; twisted tubes; biogas production; Energiteknik; Energy Engineering;

   Abstract :  Biomethane production from renewable residues with anaerobic digestion gains increasing attention as a crucial alternative to petroleum fuels. It has been vigorously developed, but the large amounts of subsidy from the government indicate that the process efficiency needs to be further improved. READ MORE

7. 5. Plant-based biogas production for improved nutrient management of beetroot in stockless organic farming

   Author : Anita Gunnarsson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Abstract : Transition from a nutrient management system based on green manure (GrM system) to one based on biodigested plant material produced within the crop rotation (BG system) was investigated in crop sequences including clover-grass, beetroot and cereals. The overall hypothesis was that transition would improve nitrogen (N) availability. READ MORE