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Pressure sand/activated carbon filters
Pressure sand/activated carbon filters
Watrion Water & Filter Engineering offers pressure sand filters. Properly designed distributors and fine quality sand is the hall mark. Turbid water load of up to 100 PPM is instantly converted into clean and clear water due to trapping of turbidity, rust, dirt, algae, dust and other organic matter. Backwashing is very easy and economical. These filters avoid separate pump at the outlet unlike gravity filters, since the pressure loss in the system is marginal. The plant has capacity up to 200 m3/hour. For higher flowrates, horizontal pressure sand filter can be used. Filtered water of turbidity less than 5 ppm. Flowrate will vary depending upon load in the raw water. If iron has to be removed, the filter will be provided with a special iron removal media. A chemical doser prior to filtration effects speedy coagulation of fine suspended solids for efficient filtration. Coagulants that can be used are: Alum, ferric chloride and sulfate of any other chemicals depending on raw water parameters. Activated carbon filter is similar in construction to sand filter. Only the pipe line is changed and activated carbon is put instead of sand. Activated carbon effectively eliminates odour, colour, obnoxious gases, organic matter, part of COD and BOD, etc.
