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...Biogas digest volume ii application and product development information advisory service on appropriate technology imprint this has been developed produced the order of gtz project isat for website in a collaborative effort following institutions individuals concept contents werner kossmann uta ponitz gate deutsche gesellschaft fur technische zusammenarbeit gmbh german agency technical cooperation post box d eschborn federal republic germany telephone fax e mail de stefan habermehl household energy technologies heat limburger stra glashutten heatinternational t online thomas hoerz pedro kramer b klingler c kellner wittur f v klopotek krieg h euler naturgerechte technologien bau und wirtschaftsberatung tbw baumweg frankfurt tel pop com design utz dornberger stockelstr leipzig imb jena table planning plant types plants parts construction details starting managing input output material digester fixed dome floating drum industrialized countries selection ballon horizontal earth pit ferroce...