I think it could be valuable to search the work done by Dr. Bendixen in Denmark, where the combinations of time/temperature, for sanitation, are based on the definition of a MGRT (maximum garantied retention time). Which means that in a quasi-continuously fed digesters, you should be carefull with the "pump in" regime. Digestion List Archives: http://www.crest.org/discussion/digestion/current/ Digestion List Moderator: Paul Harris, paul.harris@adelaide.edu.au http://www.roseworthy.adelaide.edu.au/~pharris List-Post: <mailto:digestion@crest.org> List-Help: <mailto:digestion-help@crest.org> List-Unsubscribe: <mailto:digestion-unsubscribe@crest.org> List-Subscribe: <mailto:digestion-subscribe@crest.org> Other Digestion Events and Information: http://www.bioenergy2002.org http://solstice.crest.org/renewables/biomass-info/ Beginners Tour of Biogas http://WWW.roseworthy.adelaide.edu.au/~pharris/biogas/beginners
