Hello Keith, Thanks for the info. And please let me know how your experiment goes this winter.
Tim -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Keith Addison Sent: Tuesday, October 12, 2004 3:16 PM To: [EMAIL PROTECTED] Subject: Re: [Biofuel] Methane Digester Hello Tim >I was curious to know if anyone has any first hand >experience with Methane Digesters. A project for this winter for us. I guess as of now the answer would be yes, some. >And if so, what >size farm operation would be a minimum for >generating a useful amount of gas? Useful for what? Fry says in his book (below) that a tractor tyre biogas digester will produce gas from very little chicken manure, but it'll only give you enough gas for 20 minutes a day - but that's enough to cook a meal. >Keeping in mind >that much of my small farm manure is currently >used in composting and I wouldn't sacrifice that. Indeed not, and that's what's kept us from doing biogas up to now. >However, over the next few years I will be >increasing the amount of livestock. In addition, >what sort of environmental impact might this have? It needn't have any. Just don't believe them when they say the sludge is a good fertiliser! If you're a composter you'll know why it isn't, even if it does contain some N, P, and K. There are some useful resources in our Biofuels library which should give you some ideas: Methane Digesters For Fuel Gas and Fertilizer -- With Complete Instructions For Two Working Models http://journeytoforever.org/biofuel_library.html#m ethanefry Nepal Biogas Plant -- Construction Manual http://journeytoforever.org/biofuel_library.html#n epgas Jean Pain: France's King of Green Gold http://journeytoforever.org/biofuel_library.html#p ain When we build a unit this winter, or hopefully before, we'll make a new section on biogas at our website, with a lot of resources. I've been threatening to do this for some time. It'll happen when it does. Meanwhile there's some interesting stuff in the archives. Try these: http://infoarchive.net/sgroup/BIOFUEL/37307/ Fwd: Anaerobic digestion of oil cake http://infoarchive.net/sgroup/BIOFUEL/37311/ Fwd: Anaerobic digestion of oil cake - more http://infoarchive.net/sgroup/BIOFUEL/33550/ Biogas was Rejoining list with a question HTH Best Keith >Thank you, > >Tim F. _______________________________________________ Biofuel mailing list [EMAIL PROTECTED] http://wwia.org/mailman/listinfo.cgi/biofuel Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuel archives at Infoarchive.net (searchable): http://infoarchive.net/sgroup/biofuel/ _______________________________________________ Biofuel mailing list [EMAIL PROTECTED] http://wwia.org/mailman/listinfo.cgi/biofuel Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuel archives at Infoarchive.net (searchable): http://infoarchive.net/sgroup/biofuel/
