A study on new technology for treating sulfate-containing wastewater by combined control of anaerobic methanogenic archaea and sulfur metabolic bacteria
| Project/Area Number |
26550056
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Environmental engineering and reduction of environmental burden
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| Research Institution | Tohoku University |
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Principal Investigator |
Li Yu-You 東北大学, 工学(系)研究科(研究院), 教授 (30201106)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 環境技術・環境負荷低減 / 環境保全 / 排水処理 / 省エネルギー / バイオエネルギー / メタン / 硫酸塩 / 環境技術 / 環境負荷低減 / 土木環境システム / 嫌気性処理 / メタン生成 / 環境微生物 |
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| Outline of Final Research Achievements |
The effect of COD/SO42- ratio on anaerobic treatment of synthetic chemical wastewater containing sulfate, acetate acid and ethanol was investigated using UASB reactor. The continuous experiment result show that at COD/SO42- ratio of 20 and COD loading rate of 25.2g-COD·L-1·d-1, the COD removal rate was maintained as high as 87.8%. With COD/SO42- ratio decreased from 20 to 0.5, the ratio of influent COD converted into biogas methane dropped from 80.5% to 54.4%. Methane-producing was the main reaction through the whole experiment operation time. COD/SO42- ratio played an important role in COD and electrons utilization by SRB (sulfate reducing bacteria) and MPA (methane producing archaea).
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Report
(3 results)
Research Products
(10 results)
