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Butyrate degradation for hydrogen production under conditions suppressing methanogenesis was evaluated in continuously fed-tank reactors operated at 55°C and started up with digested manure as inoculum. This study shows that the reaction of butyrate degradation to acetate and hydrogen could happen when gas sparging was applied. Gas sparging was very important for reducing hydrogen partial pressure...
A two-stage process combined hydrogen and methane production from household solid waste was demonstrated working successfully. The yield of 43mL H 2 /g volatile solid (VS) added was generated in the first hydrogen production stage and the methane production in the second stage was 500mL CH 4 /g VS added. This figure was 21% higher than the methane yield from the one-stage process,...
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