An open sand filter with single layer of sand media or multimedia with anthracite top up. Using water and air scouring for backwash
Multimedia filter used normally for cooling tower, pre treatment for Reverse Osmosis, Rainwater Harvesting. The media used in the filter for removal of contaminants
a. sand – suspended solid
b. carbon – odor, color, taste, organics
c. Green sand – iron manganese, arsenic
MF is being used when very good water quality is required for the factory or municipal water. Both polymeric membrane system and Ceramic membrane system can be designed and installed for process usage
Ion exchange system is supplied to enduser who demand consistent ultra pure water with very low silica, particulate matter and TOC.
The endusers are mainly power plant, semi conductor industries, pharmaceuticals
DAF system is used as main treatment unit for oily wastewater removal. The oil level at the treated effluent is 10 – 50 ppm free oil depending on the incoming level of oil with 90% average removal rate from the DAF.