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Water Sciences - Model SF -Sand Filter System
Sand filtration is frequently used and very robust method to remove suspended solids from water. The filtration medium consists of a multiple layer of high silica sand with a variety in size and specific gravity. Sand filters can be supplied in different sizes and materials both hand operated or fully automatically. A special application of a sand filter is the removal of iron in surface and ground or well water. An iron removal installation consists of a aeration to oxidise and precipitate the iron and manganese, followed by removal of the precipitated particles with the sand filter.
During service Water enters from the top, travels through the filtering media & goes out from the bottom. The suspended solids in the water get trapped in the filter & we get clean clear water at the outlet. This accumulated dirt (suspended solids) needs to be removed otherwise the filter will get choked & will result in less treatment flow, damage to the filter, damage to the pump, etc. The cleaning operation of the filter is called Backwash. This backwash operation needs to done once the differential pressure across the filter reaches 0.8 kg/cm2 or 24 hours of service cycle whichever is earlier.
FRP Body with Multi-port valve Filtration Systems:Flow range - 1 m3/hour to 16 m3/hour. Carbon steel (Epoxy-coated) Body with C.I. valves Filtration Systems:Flow range - 7 m3/hour to 250 m3/hour.