Methane Digesters For Fuel Gas and Fertilizer

Methane Digesters For Fuel Gas and Fertilizer With Complete Instructions For Two Working Models by L. John Fry 1. Background Mr. L. John Fry beside a three-digester unit he made in 1973. Gas holder center, water-heater on the right. Buckets in the foreground were for loading raw materials. This unit was taken down in 1974. Figures

  Fertilizers, Methane, Digesters, Methane digesters