| Project/Area Number |
20860088
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| Research Category |
Grant-in-Aid for Young Scientists (Start-up)
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| Allocation Type | Single-year Grants |
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| Research Field |
Civil and environmental engineering
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| Research Institution | Kagoshima National College of Technology |
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Principal Investigator |
YAMADA Masayoshi Kagoshima National College of Technology, 土木工学科, 助教 (80469593)
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| Project Period (FY) |
2008 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
|
| Budget Amount *help |
¥3,237,000 (Direct Cost: ¥2,490,000、Indirect Cost: ¥747,000)
Fiscal Year 2009: ¥1,521,000 (Direct Cost: ¥1,170,000、Indirect Cost: ¥351,000)
Fiscal Year 2008: ¥1,716,000 (Direct Cost: ¥1,320,000、Indirect Cost: ¥396,000)
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| Keywords | 酸性廃水 / メタン発酵 / 多点分散供給 / UASB反応器 / アルカリ剤 |
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| Research Abstract |
In this study, an experiment was conducted to establish the operating method in which alkali supply is reduced in methane fermentation, using sweet potato-based and barley-based shochu distillery wastewater as acid wastewater. In order to raise pH 6.5 optimal for methane fermentation bacteria, alkalinity was required to indicate 0.08-0.12 kg CaCO_3/kg COD. It was found that methane fermentation in each wastewater generated approximately 0.1-0.2 kg CaCO_3/kg COD removal in alkalinity. There is some possibility that distributed feeding will be an effective method of reducing alkali supply for the treatment of acid wastewater.
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