MACONS Pressure Sand Filtration is frequently used and very robust method to remove suspended solids from water. The filtration medium consists of a multiple layer of sand with a variety in size and specific gravity. In MACONS Pressure Sand Filter raw water flows down wards through the filter bed and as the suspended matter which has usually been treated by addition of a coagulant like alum- is retained on the sand surface and between the sand grains immediately below the surface. Raw water pump is used for generating necessary operating pressure in the pressure sand filter. Raw water is passed through MACONS Pressure Sand Filter at a pressure of 3.5 kg / cm2 to reduce the suspended solids present in the raw water. The filter will effectively remove up to 30 – 50 micron of the suspended solids to less than 5 ppm. The filter will have to be washed with raw water for 20 to 30 minutes daily.

The filter is now taken out of service and cleaning of the filter is effected by flow reversal. To assist in cleaning the bed, the backwash operation is often preceded by air agitation through the under drain system. The process of air scouring agitates the sand with a scrubbing action, which loosens the intercepted particles. The filter is now ready to be put back into service. The filter will have to be washed with raw water for 20 to 30 minutes daily.

MACONS Pressure Sand Filter supplied in different sizes with manual operated or fully automatically backwash system.

In MACONS Pressure Sand Filter with Ozone is the most powerful and effective microbiological control and disinfecting agent available next to fluorine. It kills bacteria 3125 times faster than chlorine. Unlike chlorine, ozone does not leave any chemicals that need to be removed after it disinfects. Ozone breaks down into oxygen.