2016 Fiscal Year Final Research Report
Methane fermentation of food waste using biological ethanol fermentation pretreatment
| Project/Area Number |
26340105
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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 |
Design and evaluation of sustainable and environmental conscious system
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| Research Institution | Osaka Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | メタン発酵 / エタノール発酵 / 食品廃棄物 |
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| Outline of Final Research Achievements |
The effectiveness of ethanol fermentation pretreatment for methane fermentation of food waste rich in carbohydrates was investigated in this study. Expected effects are increased methane ratio in biogas and miniaturization of methane fermentation reactor by improvement of substrate biodegradability. Batch, sequential batch and continuous experiments are conducted using artificial food waste as substrate.
It was found that pretreatment enables following; (1) Methane ratio in biogas rose from 10% to 15%. (2) Decreased risk of rancidity by lowering pH which enables operation on high loading conditions and miniaturization of methane fermentation reactor. (3) Excess sludge decreased. (4)Increased effectiveness,as well as stable operation, is obtained over long term.
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| Free Research Field |
環境工学
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