P-61 温泉熱利用型小規模メタン発酵システム(BDF・メタン発酵,Poster Session)
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概要
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A small-scale methane fermentation system was developed using a hot spring for warming the reactor. Materials were added directly into the first tank without grinding the leftover food, including the paper bags. The temperature of the fermentation tank was adjusted to 〜55℃ by running hot spring water through a tube coiled around the tanks. Improving the methane production efficiency, it was compared methane production and volatile fatty acid (VFA) concentrations between two operations used different carriers (polyurethane and carbon fiber) in the reactors. Methane produced during the operation with carbon fibers carrier was higher than that with polyurethane carriers. Concentrations of total volatile fatty acid (T-VFA) in the operation with carbon fiber carrier were 1/10 times concentrations in the operation with polyurethane carrier. Propionic acid concentration was decreased by addition of carbon carriers in the reactor. Methanogenic communities attached on the each carrier were analyzed using PCR-denaturing gradient gel electrophoresis (PCR-DGGE) analysis. Methanogenic communities were different between the two carriers
- 一般社団法人日本エネルギー学会の論文
- 2014-01-08