| 摘要 |
<p>A rain water treating device intended to such a rain water treatment in combined sewage that even when a large amount of rain water flows in, most of the pollutants can be removed, the device being characterized by comprising a plurality of upward flow type high speed filtering tanks having a float filter layer, a common treating tank disposed on the upper surfaces of the plurality of high speed filtering tanks for collecting the treated liquid from the high speed filtering tanks, a detergent drain tank for collecting detergent drain from each high speed filtering tank, a rain water inflow water channel for distributing inflow rain water over the plurality of high speed filtering tanks, and a rain water inflow section for allowing the rain water distributed from the rain water inflow water channel to flow down the float type filter layer of each high speed filtering tank.</p> |
