Water inlet lifting pump house: it is mainly used to collect domestic sewage from sewage pipe network, and use submersible pump to lift sewage to treatment unit.<br>Coarse grid: the coarse grid is used to remove the coarse suspended solids that may block the pump unit and pipeline valves, and ensure the normal operation of subsequent treatment facilities. The coarse grid is composed of a group of parallel metal grid bars and frames, which are inclined to be installed in the inlet channel to intercept the coarse suspended solids and impurities in the sewage.<br>
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