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Biogas technology

A biogas plant is a closed container containing a mixture of biomass materials and microbes that work effectively without oxygen to generate biogas, a mixture of methane and carbon dioxide. This gas can be used in a gas burner for cooking or as a fuel gas for other purposes.

One source of both biomass and microbes is animal dung. Other biomass materials, such as food wastes can also be added.

The material left after the gas is produced is an effective fertiliser.

Further details of how biogas works, with examples, can be found on the Kingdom Bioenergy Ltd website and also on Biogas Wikispace run by Paul Harris of The University of Adelaide.  

A set of manuals has been written for a biogas extension programme in Egypt funded by UNDP.