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Continuous Bio-hydrogen Production from Food Waste and Waste Activated Sludge  

Kim, Dong-Kun (Water Environment & Remediation Research Center, Korea Institute Science and Technology)
Lee, Yun-Jie (Water Environment & Remediation Research Center, Korea Institute Science and Technology)
Kim, Dong-Im (Water Environment & Remediation Research Center, Korea Institute Science and Technology)
Kim, Ji-Seong (Water Environment & Remediation Research Center, Korea Institute Science and Technology)
Yu, Myong-Jin (Department of Environmental Engineering, University of Seoul)
Pak, Dae-Won (The Graduate School of Energy & Environment, Seoul National University of Technology)
Kim, Mi-Sun (Biomass Research Center, Korea Institute of Energy Research)
Sang, Byoung-In (Water Environment & Remediation Research Center, Korea Institute Science and Technology)
Publication Information
KSBB Journal / v.20, no.6, 2005 , pp. 438-442 More about this Journal
Abstract
Batch experiments were performed to investigate the effects of volumetric mixing ratio(v/v) of two substrates, food wastes(FW) and waste activated sludge(WAS). In batch experiments, optimum mixing ratio for hydrogen production was found at $10{\sim}20$ v/v % addition of WAS. CSTR(Continuous Stirred tank reactor) was operated to investigate the hydrogen productivity and the microbial community under various HRTs and volumetric mixing ratio(v/v) of two substrates. The maximum yield of specific hydrogen production, 140 mL/g VSS, was found at HRT of 2 day and the volumetric mixing ratio of 20:80(WAS:FW). The spatial distribution of hydrogen producing bacteria was observed in anaerobic fermentative reactor using fluorescent in situ hybridization(FISH) method.
Keywords
Food waste; waste activated sludge; bio-hydrogen production; anaerobic fermentation; fluorescent in situ hybridization(FISH); specific hydrogen production yield;
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