[permaculture] Biogas digester plans

Robert Waldrop rmwj at soonernet.com
Mon Mar 4 19:57:51 EST 2002


Haven't the Chinese exploited this on a fairly large scale in the
countryside?  Perhaps the Chinese embassy could help with some plans.

Robert Waldrop, OKlahoma City

-----Original Message-----
From: Jeff Hall <JRHALL at gwgate.lib.iastate.edu>
>My understanding from an independent researcher who had tried to
develop a small farm scale biogas system for many years is that
temperate climates are a huge obstacle to small scale biogas systems.
The most efficient microbes are very picky about temperature, so you
need a very warm and stable space for them to do their work. I think
thats the reason many have tried and only a few systems in the warmest
climates have actually succeeded...





More information about the permaculture mailing list