| http://www.w3.org/ns/prov#value | - Alum or other Alum or other coagulant Polymer coagulant coagulant Polymer coagulant Influent Effluent Influent Effluent Optional mixing Filtration Optional mixing Filtration T > 30 minutes R = 1 ??? 10 gpm/ft2 T > 30 minutes R = 1 ??? 10 gpm/ft2 Rapid mixing Rapid mixing t = 30 minutes t = 30 minutes 11.
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