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View Diary: Destroying the Gulf for what?  Better paths forward ... (274 comments)

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  •  no need to imagine how much (1+ / 0-)
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    A Siegel

    studies indicate that converting all sewage, municipal solid waste, and agricultural waste not best left on the soil or similar, into biogas would result in the generation of amounts about equal to 1/3 the current natural gas consumption.  Oil for transportation equals about 125% of the energy supplied by natural gas, so that biogas figure totals to 1/3 of 4/5 or about a quarter of the fuel demand.

    And this assumes that you process the wastes in large facilities that are more efficient at converting organic trash into biogas, facilities that are only practical for communities of at least 100,000 inhabitants.  Small scale digesters run 10 to 15 percent lower yield.

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