| Project/Area Number |
12650550
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Civil and environmental engineering
|
|---|
| Research Institution | Ehime University |
|---|
Principal Investigator |
WATANABE Masahiro Ehime University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (70036458)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
NISHIMURA Fumitake Ehime University, Faculty of Engineering, Assistant Professor, 工学部, 講師 (60283636)
|
|---|
| Project Period (FY) |
2000 – 2001
|
| Project Status |
Completed (Fiscal Year 2001)
|
| Budget Amount *help |
¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 2001: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2000: ¥1,400,000 (Direct Cost: ¥1,400,000)
|
|---|
| Keywords | Gate Operation / Storage in Sewer Pipe System / Order of Sewer Pipe / Stormwater Runoff / Control of CSOs / Public Water Bodies / Water Pollution / Combined Sewer Pipe System / 硫化水素 / 固形性有機物の可溶化 / 腐食 / 管渠内貯留 / 汚濁負荷流出 / 雨天時越流水 / 合流式下水道 |
|---|
| Research Abstract |
A countermeasure to mitigate combined sewer overflows is proposed: when rain is relatively small, all the polluted runoff water is stored in a combined sewer pipe system; all the stored water is transported into a treatment plant during and after the rain, treated, and drained into public water bodies.
When, at the downstream ends of 6th and 4th order sewer pipes, control gates are installed and all the polluted runoff water is stored in the sewer pipes of 6th, 5th, 4th, and 3rd order, then the rain water amount of 10 mm will be able to be stored in the pipes; and 30 or 40 percent of the polluted runoff water that has been overflowed out of the pipe system without any treatment will be able to be treated and drained into public water bodies.
|
