A typo I think - or has the Law of Conservation of Mass been repealed? " Using daily 1 kg (dry weight) food waste produces daily about 700 to 800 kg biogas" !
Maybe 7-800 litres? Duncan Martin Cloughjordan Ecovillage Ireland On 4 October 2010 07:47, Anand Karve <[email protected]> wrote: > Dear Members, > this question was raised in a recent flurry of messages. Instead of > repeating them, I wish to state the following: > Using daily 1 kg (dry weight) food waste produces daily about 700 to 800 > kg biogas, which most small families (4 to 5 persons) find quite adequate > for cooking all their meals. Our biogas plant has a digester of 1000 litres > and a moving drum type of a gas holder having a capacity of about 750 > litres. The cost of complete biogas plant is about US$200, if it is > manufactured according instructions contained in our video which can be > downloaded from our web site www.arti-india.org by paying us US$10 through > Pay Pal. The matter was also discussed if yeast had beneficial effect on > biogas production. Frankly, I do not see why and how yeast should benefit > the process. Yeast would actually act as a competitor of the methanogens in > that the sugar that would normally have produced biogas, would be used by > the yeast in producing alcohol. It is likely that alcohol can act as > substrate for the methanogens (glycerin, which is an alcohol, can be used > by the methanogens as a substrate), but a lot of energy would be wasted in > this process in comparison to obtaining methane directly from the sugars by > using the methanogens. > Yours > A.D.Karve > -- > *** > Dr. A.D. Karve > President, Appropriate Rural Technology Institute (ARTI) > > *Please change my email address in your records to: [email protected] * > > > _______________________________________________ > Digestion mailing list > [email protected] > > http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org > >
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