| 摘要 |
PURPOSE:To keep water quality purification and activation in a total way over the whole area of a water system, and ensure environmental protection, regarding a golf course or the like where a reservoir is laid with a difference of elevation. CONSTITUTION:Downstream channels 11, 12 and 13 are provided among reservoirs 1, 2 and 3 laid at a place having a difference of elevation, in such a way as connecting the reservoirs 11, 12 and 13 to one another and causing water to naturally flow from upper level to lower level on a difference of elevation. Also, the first pumping channels 21, 22 and 23 for connecting each reservoir and pumping up water from lower level to upper level, are laid, together with the second pumping channel 31 for pumping up water from the lowest level to the uppermost level. Furthermore, the downstream channels 11 to 13 are fitted with the first activation and purification filter devices 41, 42 and 43 using multi-stage filtration means 44 and 45 for purifying water running down. Also, a part of the first pumping channels is provided with the second activation and purification filter device 51, 52 and 53 for purifying pumped water. |
