| 摘要 |
The invention relates to an open filtration device for a water treatment station, for open filters having a filter bed such as sand, coal, etc.. The device comprises: a plurality of support legs (10); a plurality of frames (20) supported on the support legs (10) and each having at least one opening (22), whereby the plurality of frames (20) can cover the bottom of a filter; and a plurality of filtration assemblies having a flat upper surface, each of which can be coupled to a frame (20), covering an opening (22) in same, each filtration assembly comprising a filtration screen (32) for separating the water from the filter bed by means of filtration. |
