Bio-gas

A combustible gas (composed primarily of methane) produced when sewage or manure is fermented in the absence of oxygen. The solid material that remains in the digester after fermentation can be used as an organic fertilizer.

Bio-gas

A combustible gas (composed primarily of methane) produced when sewage or manure is fermented in the absence of oxygen. The solid material that remains in the digester after fermentation can be used as an organic fertilizer.
Found on http://www.frontierassoc.net/greenaffordablehousing/tools/ChemicalTerms.sht

bio-gas

biogas, bio-gas 1. A mixture of methane and carbon dioxide along with traces of other gases, such as nitrogen, hydrogen, and water vapor, that is produced during anaerobic digestion. 2. A combustible gas produced by microbial activity, usually referring to methane produced by microbial fermentation of organic wastes. 3. Any gas fuel derived from ...
Found on http://www.wordinfo.info/words/index/info/view_unit/2819/12
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