File:Walter Schmid mit Kompogas.jpg
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current | 10:24, 11 May 2011 | 2,020 × 2,422 (1,010 KB) | Mukitil | {{Information |Description ={{en|1=Walter Schmid did not believe that the energy in organic household waste is lost as he was told and invented a fermentation system to produce biogas from it, known in Switzerland as Kompogas. Thanks to photographer Be |
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