Sent on behalf of Wayne, G'day all!
I've come across an interesting case study using cow manure and vermiculture. Unfortunately, this list won't let the link be included. Just google Large-Scale Vermicomposting of Dairy Manure (I hope this is the link Wayne meant - http://www.extension.org/sites/default/files/w/1/1a/07decPPherlihy.pdf)
Apart from the obvious digesting of what they pump off to the aeration lagoon, I was wondering is if is possible to replace their Pre‐Vermicomposting Conditioning (composting active aeration) stage with (probably high solids) anaerobic digestion? The goal would be to get some energy/biogas out of this input material/feedstock but leave enough food for the worms to eat. That we get biogas, biofertilizer and worms (as a high protein feed supplement) and well as serious odour elimination. If it is possible that what sort of retention time are we looking at optimally?
Blessings, Wayne -- Mr Paul Harris BEng (Ag) (Melbourne) Visitor at The University of Adelaide _______________________________________________ Digestion mailing list to Send a Message to the list, use the email address [email protected] to UNSUBSCRIBE or Change your List Settings use the web page http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org for more information about digestion, see Beginner's Guide to Biogas http://www.adelaide.edu.au/biogas/ and the Biogas Wiki http://biogas.wikispaces.com/
