Mushroom culture waste was used for methane fermentation and which waste is regional and unique in Nagano Prefecture. In generally, mushroom culture wastes are poor biodegradable which contains huge number of cellulose and lignin. We used 100mL serum vials as methane fermentation batch reactor and used anaerobic sludge biodegraded for food wastes as inoculum. Methane fermentation was carried out using an untreated sample and a sample with pressure extrusion treatment by an extruder. At this time, a methane yield of 234 ml-CH4/g-VS was obtained from the untreated sample, and a 238 ml-CH4/g-VS was obtained from the pre-treated sample. Significant improvement in methane yield was not observed.
廃菌床のメタン発酵における前処理としての蒸煮・爆砕処理の影響
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