| Budget Amount *help |
¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
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| Research Abstract |
Since the wastewater drained from kitchens of restaurants includes oils, it causes clogged sewage pipe and overload to the sewage plant. This study proposes a new kitchen wastewater treatment system that combines two-step up-flow anaerobic sludge blanket (UASB) reactor and a down-flow hanging sponge (DHS) reactor coupled with ozone treatment. This treatment system can save energy, recover methane gas and promote oil decomposition. This lab-scale system has been operated continuously for around two years using kitchen wastewater from our school dormitory cafeteria. This treatment performance and effectiveness of the ozone treatment were investigated.
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