Dear Duncan, thanks for pointing out the mistake. It should have been 700 to 800 litres. .Yours Karve
On Wed, Oct 6, 2010 at 3:05 PM, Duncan Martin <[email protected]>wrote: > A typo I think - or has the Law of Conservation of Mass been repealed?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 >> >> > > _______________________________________________ > Digestion mailing list > [email protected] > > http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org > > -- *** Dr. A.D. Karve President, Appropriate Rural Technology Institute (ARTI) *Please change my email address in your records to: [email protected] *
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