| Project/Area Number |
13555151
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
Civil and environmental engineering
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| Research Institution | Toyo University |
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Principal Investigator |
MATSUO Tomonori Toyo University, Faculty of Regional Development Studies, Professor, 国際地域学部, 教授 (80010784)
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| Co-Investigator(Kenkyū-buntansha) |
HANAKI Keisuke University of Tokyo, Graduate School of Engineering, Professor, 工学系研究科, 教授 (00134015)
YOSHIMOTO Kuniharu Toyo University, Faculty of Engineering, Professor, 工学部, 教授 (90307778)
KITAWAKI Hidetoshi Toyo University, Faculty of Regional Development Studies, Professor, 国際地域学部, 教授 (60251344)
HOSODA Masahiro GE Net, Co. Ltd., R&D Section, Vice Director, 開発部, 開発副本部長
ARAMAKI Toshiya University of Tokyo, Research Center of Advanced Sciences and Engineering, Assistant Professor, 先端科学技術研究センター, 講師 (90282673)
細田 昌弘 ジーイーネット(株), 開発副本部長
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| Project Period (FY) |
2001 – 2003
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| Project Status |
Completed (Fiscal Year 2003)
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| Budget Amount *help |
¥13,400,000 (Direct Cost: ¥13,400,000)
Fiscal Year 2003: ¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2002: ¥4,100,000 (Direct Cost: ¥4,100,000)
Fiscal Year 2001: ¥5,700,000 (Direct Cost: ¥5,700,000)
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| Keywords | Water pollution / storm water overflow / combined sewer system / computer system model / GIS of land use date / tank model / overflow frequency / reclaimed water / 合流式下水道 / 雨水時超流水問題 / ディスポーザー / 下水道システムモデル / 雨水流出シュミレーション / 雨水流出モデル / 合流改善 |
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| Research Abstract |
Water pollution problems caused by the storm water overflow from combined sewer system have been raised as crucial issues in the newspapers and public. In order to minimize the frequencies of the overflow and total pollution loading to the public water bodies like the Tokyo. Bay and the Sumida River, it is requested to consider possible measures and take actions practically so far as possible.
In the present study, it was examined that a computer system model based on the GIS of land use date and tank model for simulation of rain water runoff could usefully predict the rainwater runoff in the test river basin. Using the computer model, it was clearly shown that the overflow frequency from the combined sewer system was decreased more than 70 percent, in case that the capacity of infiltration and impoundment of water at the site of upstream land use. The impounded water might be used as a kind of reclaimed water for toilet wash and land application in the garden.
The research results were summarized and a research paper of these results has been submitted the journal of Japan Sewage Works Association.
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