Active sand filter, based on the countercurrent principle, is the continuous filtration equipment integrating coagulation, clarification and filtration. It can remove suspended solids and other particulate impurities through filtering layer’s interception function.
1. Unique sand-lifting and sand-washing structures avoid deterioration of outlet water quality caused by the changes of the amount of lifted sand.
2. The filtering operates continuously and no downtime backwash is required.
3. The cleaning water only accounts for 1-3% of the total inlet water.
4. No high-lift flow backwash pump is required.
5. Stable outlet water quality and good filtering result.
6. Small size, beautiful appearance.
Processing scale of a single set:1-100m³/h
Inter water quality: SS＜20mg/L
Outlet water quality: SS＜5mg/L
Feed speed:15m/h
Loss of water head:0.5-1m
Air supply:10-15m³/m².s
Pressure:0.2-0.4mPa
1. According to different applications, the active sand filter can be divided into filter, denitrification, dephosphorization, etc. In order to optimize the design, the inlet water quality needs to be provided.
2. According to the service condition, the internal structures are made from stainless steel, fiber reinforced glass, polypropylene, etc.
