Patent ID: 7510660
Filing Date: 2009-03-31
Classification: C02F,Y10S

Abstract:
1. A method for treating water comprising the steps of: (a) adding a chemical coagulant to water containing a pollutant, the water within an enclosure, the enclosure including a matrix element for providing additional surface area within the enclosure, wherein the matrix comprises one of a baffle, a bristle media filter, and a filter media; (b) mixing the water and the coagulant; (c) permitting coagulation and flocculation to occur; (d) stopping the mixing; (e) permitting a floc formed by the coagulation and flocculation to settle to a bottom of the enclosure and onto the matrix element, the floc containing the pollutant, the matrix element providing additional floc-containing surface area to contact the water within the enclosure, treated water remaining above the floc thereby free from at least some of the pollutant; (f) removing at least some of the treated water from the enclosure; (g) adding new water containing a pollutant to the enclosure; and (h) mixing the new water and the floc to resuspend components of the floc.