| Project/Area Number |
10480141
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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 | 一般 |
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| Research Field |
環境保全
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| Research Institution | The University of Tokyo |
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Principal Investigator |
MATSUO Tomonori The University of Tokyo, Graduate School of Engineering, Professor, 大学院・工学系研究科, 教授 (80010784)
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| Co-Investigator(Kenkyū-buntansha) |
HIRAYAMA Kimiaki Yamanashi University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (40107214)
ARAMAKI Toshiya The University of Tokyo, Research Center for Advanced Science and Technology, Lecturer, 大学院・工学系研究科, 講師 (90282673)
HANAKI Keisuke The University of Tokyo, Graduate School of Engineering, Professor, 大学院・工学系研究科, 教授 (00134015)
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| Project Period (FY) |
1998 – 1999
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| Project Status |
Completed (Fiscal Year 1999)
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| Budget Amount *help |
¥11,300,000 (Direct Cost: ¥11,300,000)
Fiscal Year 1999: ¥5,200,000 (Direct Cost: ¥5,200,000)
Fiscal Year 1998: ¥6,100,000 (Direct Cost: ¥6,100,000)
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| Keywords | water cycle / the Tokyo Metropolitan Area / Geographical Information System / rainwater storage / reclaimed wastewater reuse / the Kofu City / water use per capita / river water quality / GIS |
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| Research Abstract |
The GIS based artificial water cycle model was developed in the Tokyo Metropolitan Area. The model consists of building and land use data with grid form, and digital data of sewerage system and river with vector form. Flow rate of sewer pipes are roughly reproduced in this model.
Using this model, the influences of rainwater and reclaimed wastewater reuse systems on urban water cycle were evaluated in each area of Tokyo. From the model, many information for planning and management of these systems were obtained, Such as, 17% of the total water demand in Tokyo can be replaced in the case that the systems intstall the suitable system on economic aspects in each area.
On the other hand, the trends of water use and river water quality in the Kofu City are analyzed for getting the basic information on regional water and pollutants balances. The volume of water use per capita changed depending on the temperature change. River water quality was improved as the sewerage network expanded.
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