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Upflow roughing filter

4 bytes removed, 22:03, 21 May 2012

→‎Potential problems

====Potential problems====

— * High loads of organic and other suspended material in the raw water clog the filter and reduce the hydraulic cleaning capacity.— * Roughing filters only remove some of the solids and pathogens in the water, and additional treatment is needed.

==Costs==

'''Initial cost''': Reported construction costs are US$ 20–40 per m3 of water per day, for a structure designed to be in operation for 24 hours a day.

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