The rate of filtration depends on the surface area, depth, and type of sand through which the water is passed, and the pressure of the water.
过滤速度取决于表面区域、深度以及水通过的沙子类型和水压。
2
SONDERMANN filters are used to remove, by means of depth-type or surface filtration, both organic and inorganic contaminations from aggressive and neutral liquids.