David, Have you seen this web page. Raul Martins has been making biogas and organic hydroponic solution for more than 30 years. http://www.hydor.eng.br/Pag3-1.htm kris book Subject: Interested colombian > > > >I would like to suscribe to your mailing list. I am a > >student of chemical engineering in the National > >University of Colombia, I'm just finished my last year > >of classes and I plan to do my thesis about the use of > > Digestion List Archives: http://www.crest.org/discussion/digestion/current/ Digestion List Moderator: Phil Lusk, plusk@pipeline.com www.biogasworks.com Other Digestion Events and Information: http://www.fsec.ucf.edu/bioam/ http://solstice.crest.org/renewables/biomass-info/ Beginners Tour of Biogas http://WWW.roseworthy.adelaide.edu.au/~pharris/biogas/beginners
