Quartz sand filter

Quartz sand filterIt is a common fast filtration equipment that uses quartz sand filter material to remove suspended solids from raw water. When water containing suspended particles flows through the filter layer, the gaps in the filter material screen and filter the suspended particles, making them easy to adsorb on the surface of the filter material. When a certain amount of dirt is trapped on the surface of the filter material to form a filter membrane, the pressure difference before and after the filter will quickly increase over time until it fails. At this point, it is necessary to use reverse water flow to backwash the filter material, causing the quartz sand in the filter to suspend and loosen, thereby stripping off the trapped substances adhering to the surface of quartz sand and anthracite and carrying them away by the water flow, restoring the filtering function. Design flow rate15m/hBackwash strength15～18L/ m2.sThe effluent is filtered through a quartz sand filterNTU＜1After prolonged use, the wear and tear of quartz sand decreases5-7Replace once a year. Backwash drainage is connected to the water storage tank.