Quartz sand filter can effectively remove suspended solids in the water and hassignificant effects on the removal of colloids, iron, organics, pesticides, manganese, bacteria, viruses and other pollutants in the water. In addition to advantages of small filtration resistance, large specific surface area, strong acid and alkali resistance, resistance to oxidation, PH scope of2-13 and anti-pollution. As a unique advantages of the quartz sand filter, the filter is able to run self-adaptively through the optimization of the filter media and filter design, so that the filter has a strong adaptivity to raw water concentration, operating conditions, pre-disposal process, i.e. the filter bedautomatically forms a non-uniform state during filtration, which helps to guarantee the water quality under a variety of operating conditions and spread the filter material when backwashing, achieving good cleaning effect. The sand filter has advantages including fast filtering speed, high filtration precision and large interception capacity, etc. The filter is used in the industrial water, domestic water and municipal water systems requiring outflow turbidity of not greater than 5mg/l and complying with drinking water quality standards and for the removal of suspended solid sand solids in industrial wastewater, it can be used as ion exchange and pretreatment for softening desalination system and can also be used in the coarse filtration of water with undemanding industrial water quality, swimming pool circular processing system and cooling circulating water purification system.
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