 Asia’s largest environment solutions provider, with a strong international presence  Total water & environment management solutions for all sectors – industry, homes and communities, urban and rural  Complete range of technologies, processes and products few companies in the world can provide.  360˚ environment management capability adds value across entire cycle – from influent supply and conservation through production and processes to effluent treatment and recycle for zero discharge ABOUT US

More than four and a half decades’ expertise…  More than 80,000 installations worldwide  Over 500 installations in core sector – thermal & nuclear power stations, fertiliser factories, refineries & petrochemical plants.  Exports to USA, UK, Russia, Africa, South East Asia, Japan, the Middle East and neighbouring countries. Extensive Infrastructure  All India infrastructure – production facilities, sales offices, dealer network  Largest service network in water treatment industry in Asia  Global presence through overseas operations and offices  Five production facilities, two R&D centres ABOUT US

MILESTONES 1964 Incorporated as 60% subsidiary of Permutit, UK 1965 Resin production & equipment assembly starts 1973 R&D centre established 1974 All India dealer network 1977 Listed on Bombay Stock Exchange 1978 First company to introduce reverse osmosis in India 1982 Engineering & fabrication operations set up 1983 First Employee Trusts formed Industrial chemical production starts 1985 Ion Exchange becomes a wholly owned Indian company after Permutit divests 1987 Manufacture of reverse osmosis membranes starts 1991 Started SE Asian operations 1996 First sea water desalination plant in India at GEB, Sikka 1998 Consumer product manufacturing starts at Goa 2005 Joint venture on waste water & environment technologies 2007 Manufacturing set up in Hamriyah, UAE 2008 Operations set up in USA 100% export-oriented unit (EOU) set up First major contract - CPCL

Surface Water Supply Scheme For Rural / Villages Using Continuous Sand Filtration Technology Flow Diagram of WTP Raw Water Pump CSF ACF Chlorination

Continuous Sand Filter The Continuous Sand Filter plant is a continuous up flow deep bed granular media filter for raw water filtration for potable use. The backwash should also be continuous to facilitate filter media to be moving in down flow direction and continuously cleaned by recycling the sand internally. TREATMENT PHILOSOPHY Source ( Canal )  Raw Water Pump  Continuous Sand Filter  Filtered Water Tank and Pump  Activated Carbon Filter  Disinfection by Chlorination -> Over Head Tank

Process Parameters Handles inlet suspended solid loads upto 150 ppm & it can also handle TSS upto 200 – 250 ppm with the addition of Alum / Polymer. Consistent Treated water quality of less than 2 ppm. Surface loading depends upon type of application and varies from from 6 to 20 m/h. Available in two sizes in steel with flow rates of 30 m3/hr & 50 m3 /hr. Higher flow rates can be achieved by concrete structure.

Continuous Sand Filter - Benefits Filters – Influent Containing up to ten times more dirt than conventional filters. Continuous Operations of Filters – Filters need not to be stopped for backwash. The Backwash water can be recycle – No Wastage of water. Very Compact & easy to Install.

Continuous Sand Filter - Benefits Maximum Clean Filtrate – Filter bed always contains a certain amount of solids which improve filtrations. Enables filters to accept a highly polluted flow with high efficiency. No Backwashing – Sand bed continuously cleaned and regenerated by internal recycling. This unique cleaning method dispenses with backwash water storage tanks and pumps.

Continuous Sand Filter Total Suspended Solids (Considered) ppm:< 150 TurbidityNTU<150 TemperatureDeg. C 45 Total Suspended Solids ppm: < 5 TurbidityNTU:< 5 Raw water analysis Treated Water Quality ( CSF - ACF and after Chlorination )

Rural Drinking Water Supply Scheme - Haryana

Rural Drinking Water Supply Scheme - Pathankot

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