Anthracite coal and quartz sand filter material used is the promotion of double quick filter and three layers of the best material to filter , cartridge filter. Increase the water yield per unit area is to improve the filtering speed and multiply section carrying capacity, reduce the project cost and the most effective way to reduce cover an area of an area. Widely used in chemical industry, metallurgy, thermal power, pharmacy, paper making, printing and dyeing, food, etc. In the process of the production water quality before and after treatment.
