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close this bookBetter Farming Series 32. Biogas 2: Building a Better Biogas Unit (FAO Better Farming Series, 1986)
View the document(introduction...)
View the documentPreface
View the documentIntroduction
Open this folder and view contentsHow to build a better small biogas unit
Open this folder and view contentsPutting in the waste
View the documentTime
Open this folder and view contentsTemperature
View the documentScum
View the documentWhen the gas is made
View the documentTaking care of your biogas unit
View the documentMaking more biogas
Open this folder and view contentsWhat more can you do?