Reuse of water from coal mine sewage treatment

The coal mine sewage enters the regulating tank through the water transmission pipe, and the mine sewage stays in the regulating tank to regulate the water quality and quantity, and ensure the continuous operation of the subsequent treatment unit. The effluent from the regulating tank is lifted to the coagulation tank and flocculation tank by the pump. After the coagulation and flocculation treatment, the sewage enters the inclined tube sedimentation tank. After the sedimentation of the inclined tube sedimentation tank, the supernant flows into the intermediate tank, and then the multi-medium filter and activated carbon filter are lifted by the pump for preliminary filtration to remove the suspended particles and colloidal particles in the water. Reduce the operating load of the subsequent depth unit. The effluent from the pretreatment system is pumped to the ultrafiltration device to remove the colloid, microorganism and other pollutants in the water, so that the SDI index and particles can fully ensure the water intake requirements of the reverse osmosis. The water produced by the ultrafiltration device enters the ultrafiltration production tank and is pumped to the reverse osmosis system. The reverse osmosis effluent is used for reuse.