Biogas in dairy farms simply obtained by the anaerobic digestion with the manure collected in the farms, it converts the cow manure into methane biogas. With the help of the digesters and the mixers in these and also generators basically the manure is used to obtain electricity and heating for these farms. Therefore the farm by itself can be able to use this electricty and heating for its own needs. In Germany today many dairy farms have such installations. Not only it has benefits in economical points (producing electricty and heating) but also biogas systems may reduce global warming. (It reduces nitrogen dioxide and methane oscillation both of which heat the atmosphere).
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