potable water purification of river water for supply in towns and cities (with diagram).
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Answer:River water is converted into potable water for a city water supply system by in the following steps .. 1.at first the water is stored in large tank for sedimentation . ... then alum is added to that water so that all the impurities get separated from that water . Sorry not able to give diagram hope it will help please mark me as brainliest if it does.......
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