| 摘要 |
<p>PURPOSE:To provide a purification tank for sewage and a purification system for removing SS particles incorporated into treating water and enhancing a water purifying capacity and also enabling to save the cost without requiring a large place for bettled sludge. CONSTITUTION:This purification system has the purification tank 1 having a filtering chamber formed by opening the bottom surface and filling a filter medium in the inside, and a purifying device arranged with a filter medium- washing device in the purification tank 1, where the tank 1 and the device are arranged freely as cendably and descendably in the settling tank 4 to use for a water purifying method.</p> |
