To perfectly prevent the outflow of polluted water to a buffer basin and general rivers by issuing the closing command of a buffer basin on-off gate, the opening command of a polluted wastewater flow dividing on-off gate and the closing command of a buffer basin outlet on-off gate at an operation arriving time.
A gate on-off estimation controller operates the arrival time of polluted water to a buffer basin inlet on-off gate 50 from the received flow velocity of wastewater and the distance from the preliminarily inputted position of the wastewater pollution detector 12 of a building I or the waste water pollution detector 22 of a building II to the buffer basin inlet on-off gate 50 and issues not only a closing command to the buffer basin inlet on-off gate 50 but also an opening command to a polluted wastewater flow dividing on-off gate 40 immediately before the arrival time and issues a closing command to a buffer basin outlet on-off gate 53 in order to perfectly prevent the outflow to general rivers 70.
| WO/2023/005134 | WATER REMEDIATION DEVICE |
| WO/2019/145943 | FILTRATION SYSTEM |
| JP6251976 | The managerial system of a pumping well. |
HOSHINO YOSHIO
KATO SHINJI
