Biogas Engineering Articles
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Increased biogas production in a wastewater treatment plant by anaerobic co-digestion of fruit and vegetable waste and sewer sludge – A full scale study
Anaerobic digestion is a well established technology for the reduction of organic matter and stabilization of wastewater. Biogas, a mixture of methane and carbon dioxide, is produced as a useful by-product of the process. Current solid waste management at the city of Prince George is focused on disposal of waste and not on energy recovery. Co-digestion of fresh fruit and vegetable waste with ...
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Behaviour and adsorptive removal of siloxanes in sewage sludge biogas
We investigated the behaviour of siloxanes, which adversely affect biogas engines, as well as their concentration levels in sewage sludge biogas in Japan. We also performed experiments on the absorptive removal of siloxanes using various adsorbents and determined the main adsorbent characteristics required for the removal of siloxanes. The results of our study on the concentration and composition ...
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Anaerobic co-digestion of surplus yeast and wastewater to increase energy recovery in breweries
Surplus yeast is a residue produced during brewery process, which presents high contents of organic matter. Biogas production from yeast could significantly contribute to bioenergy production in breweries, via biogas generation. Co-digestion of surplus yeast and brewery wastewater in a single treatment step would simplify the technical and economical requirements for the transformation of both ...
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Portable biogas bottling plant: a practical approach for using biogas as transportation fuel in rural areas
Biogas contains about 65% methane, 30-35% carbon dioxide, traces of hydrogen sulphide and moisture. It has been observed that diesel engines get severely damaged when operated on biogas for long duration. Presence of these corrosive gases make biogas unsuitable for transportation application. By removing CO2 and trace acidic gases like H2S and moisture, biogas can be converted into natural gas ...
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Renewable energy programmes in India
With a strong industrial base and successful commercialisation of technologies in renewable energy, India is in a position today to offer state-of-the-art technology to other developing countries and is poised to play a leading role in the global movement towards sustainable energy development. India has a separate ministry to promote renewable energy sources, which has been named Ministry of ...
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Aerobic thermophilic bacteria enhance biogas production
The enhancing effect of aerobic thermophilic (AT) bacteria on the production of biogas from anaerobically digested sewage sludge (methanogenic sludge) was investigated. Sewage sludge (5%, w/w) was incubated at 65°C with shaking for a few months to prepare the AT seed sludge. AT sludge was prepared by incubation of the AT seed sludge (5%, v/v) and sewage sludge (5%, w/w) at 65°C with shaking. The ...
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The promotion and development of renewable energy technologies: current status and pattern of use in Nepal
This paper presents the current status and pattern of use of Renewable Energy Technologies (RETs) in Nepal. The importance of the renewable energy development paradigm is considered in the overall context of national development by supplying the energy requirements of rural areas by the use of available biomass resources whilst also protecting the environment. The RETs popular in the rural energy ...
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