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Salient features: Remove iron to the desired permissible limit (0.3ppm) of drinking water. No electricity chemical required . Completely green technology . Flow rate : ~ 2 L/hour(approx.) . Storage capacity : ~ 10 L . No replacement of adsorbent. Backwashing facility is available . Estimated cost of the iron filter unit : Rs 1000-1500 /- (approx) Estimated filtration ability of filter medium (backwashing time) is around 40 days (for 7 ppm iron conc.) assuming consumption of 8L of water per day for a family. Transferred to one Indian Industry in non-excl.basis and 20 Nos. of this unit were deployed in different villages under Gram Panchayats in WB. Application: Environmental (Clean Tech.) - Water treatment.