| 摘要 |
PURPOSE: A river water purification structure is provided to more efficiently use a space by utilizing the internal space of a reservoir installed in the river and to remove suspended solid, nitrogen, phosphorus, and bad smell. CONSTITUTION: A river water treatment structure includes a river water inlet tube(110), river purification facility, and a river water overflow pipe(120). The river purification facility includes a reaction bath, a processing agent feeder, and a reactant settling tank which precipitates floated materials with the gravity. The overflow pipe is connected to a reservoir(300) installed across the river. The flow path in which the river water can flow is formed inside the reservoir. A plurality of stairs, projections, and impingement plates are installed in the flow path. The projection is installed in the upstream of the lower stairs in a vertical direction. The impingement plate is installed on the top of projection. |
