Sokoine University of Agriculture

Efficacy of anaerobic methane fermentation system on Shochu waste treatment

Show simple item record Issa-Zacharia, A. Morita, K. Kamitani, Y. 2017-06-16T17:11:50Z 2017-06-16T17:11:50Z 2009
dc.description.abstract This study aimed at evaluating the efficacy of anaerobic methane fermentation on Shochu wastewater treatment and collecting the performance data for this system. The performance data studied include Chemical oxygen demand (CODcr) removal efficiency, methane production rate (MPR) and biogas production rate (BPR). Shochu wastewater contained 43,000mg/l and 36,800mg/l as total CODcr and suspended solids, respectively. Approximately CODcr removal efficiency of 98% could be achieved after 120h of fermentation in a batch reactor. The optimal biogas production was attained at the shochu wastewater to seed ratio of 1:4 (v/v). Undiluted shochu wastewater sample gave the best results indicating that its dilution is unnecessary. Initial material pH value of 6.5 to 7.5 for the shochu wastewater-seed mixture was effective and the pH outside this range resulted in reduced biogas production. Methane (CH4) content in biogas was on average 65.5% regardless of the initial pH value, with exception of pH 5.5 where no CH4 gas was detected. The BPR of 0.95l/ld and MPR of 0.43l/ld were realized with undiluted shochu wastewater at 1:4 (v/v) shochu wastewater to seed ratio. A large fraction of organic matter was effectively degraded. en_US
dc.language.iso en en_US
dc.publisher J SASJ en_US
dc.subject Anaerobic methane fermentation en_US
dc.subject Shochu wastewater en_US
dc.subject Methane production rate en_US
dc.subject Biogas production rate en_US
dc.title Efficacy of anaerobic methane fermentation system on Shochu waste treatment en_US
dc.type Article en_US

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