Development of biological wastewater treatment using seawater
| Project/Area Number |
24560658
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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 |
Civil and environmental engineering
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| Research Institution | Ibaraki University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 硫酸塩還元細菌 / 都市下水 / 海水 / 微生物燃料電池 / 生活排水 / 重金属 / 包括固定化 / 微生物群集構造解析 |
|---|
| Outline of Final Research Achievements |
Assuming the use of existing bottomless septic tanks widely distributed in Pacific atolls, biological treatment of domestic wastewater using seawater was examined. Anaerobic sequencing batch reactor fed municipal wastewater with the addition of seawater showed organic matter removal efficiencies between 82.4-91.1%. The 16S rRNA gene-based microbial community analysis revealed that sulfate-reducing bacteria belonging to the delta-Proteobacteria and others belonging to the alpha-Proteobacteria play an important role in removing organic matter in the presence of seawater. In addition, over 68% removal ratio of Pb, Zn, and Cu was achieved, largely owing to the formation of metal-sulfide. Moreover, it was found that the addition of seawater dramatically improves power generation in microbial fuel cell system treating municipal wastewater, because of the improvement of electric conductivity in the anode tank.
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Report
(4 results)
Research Products
(11 results)
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[Journal Article] Heavy metal contamination of coastal lagoon sediments: Fongafale Islet, Funafuti Atoll, Tuvalu2014
Author(s)
Fujita, M., Ide, Y., Sato, D., Kench, P. S., Kuwahara, Y., Yokoki, H., Kayanne, H.
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Journal Title
Chemosphere
Volume: 95
Pages: 628-634
DOI
Related Report
Peer Reviewed
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[Journal Article] Anthropogenic impacts on water quality of the lagoonal coast of Fongafale Islet, Funafuti Atoll, Tuvalu2013
Author(s)
Fujita, M., Suzuki, J., Sato, D., Kuwahara, Y., Yokoki, H., Kayanne, H.
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Journal Title
Sustainability Science
Volume: 8
Issue: 3
Pages: 381-390
DOI
Related Report
Peer Reviewed
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