| Project/Area Number |
07558081
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
環境保全
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| Research Institution | Tohoku University (1996-1997)
Iwate University (1995) |
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Principal Investigator |
OMURA Tatsuo Tohoku University Professor, 大学院・工学研究科, 教授 (30111248)
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| Co-Investigator(Kenkyū-buntansha) |
NAKAMURA Kanji Kurita Corp.Senior Scientist, 主任研究員
UMITA Teruyuki Iwate University Associate Professor, 工学部, 助教授 (30117072)
HARADA Hideki Nagaoka Institute of technology Professor, 教授 (70134971)
ENDO Ginro Tohoku Gakuin University Professor, 工学部, 教授 (80194033)
NOIKE Tatsuya Tohoku University Professor, 大学院・工学研究科, 教授 (90005398)
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| Project Period (FY) |
1995 – 1997
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| Project Status |
Completed (Fiscal Year 1997)
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| Budget Amount *help |
¥12,800,000 (Direct Cost: ¥12,800,000)
Fiscal Year 1997: ¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 1996: ¥3,800,000 (Direct Cost: ¥3,800,000)
Fiscal Year 1995: ¥6,000,000 (Direct Cost: ¥6,000,000)
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| Keywords | Heavy metals / Biopolymer / Hazardous / Complex / Genetic / Molecular biology / 硫黄酸化細菌 / 鉄酸化細菌 / 遺伝子 / 汚泥 / 鉄バクテリア / リーチング / 高分子ポリマー / 下水汚泥 |
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| Research Abstract |
Heavy metal is one of a major hazardous pollutant produced from electrical, aerospace, automobil, metalprocessing, metalplating, mining, and other heavy metal-related industries. A numbers of processes were proposed and applied to remove heavy metals from waste streams at a low cost.st.Chemical processes, such as neutralization-precipitation, were the majority to treat heavy metal wastes. However, chemical processes require continuous consumption of chemicals and create final disposal problems of heavy metal-rich chemical sludge. An alternative method to treat heavy metal wastes are need to be developed.
The objectives of this research project are to develop a novel process to treat heavy metal wastes at a low cost, and to recover removed heavy metals for the final reuse.
This research project yied the following progresses during the duration of the project period :
-Microbial biopolymers that remove hazardous pathogens were developed.
-Biopolymer production in anaerobic digester was studied.
-Heavy metals were effectively recovered from sludge biopolymers by bacterial leaching technique
-Genetic information was found for heavy metal-resistant bacteria.
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