2013 Fiscal Year Final Research Report
A study on treatment of kitchen wastewater including oil by combination system of the ozone, two-step UASB and DHS reactor
| Project/Area Number |
23510109
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Environmental technology/Environmental materials
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| Research Institution | Kochi National College of Technology |
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Principal Investigator |
YAMAZAKI Shinichi 高知工業高等専門学校, 環境都市デザイン工学科, 准教授 (60290821)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 省資源技術 |
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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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