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Latest comment: 7 years ago2 comments2 people in discussion
Water treatment generally means purification of water in the process of filtering. . LALCHANDKUMAR (talk) 15:40, 25 March 2017 (UTC)Reply
"Water treatment" covers both purification of water for drinking and supply, but also the clean-up of sewerage. Flotation can be part of that. Andy Dingley (talk) 19:49, 25 March 2017 (UTC)Reply
