Patent ID: 8017018
Filing Date: 2011-09-13
Classification: C02F,Y10S

Abstract:
1. A method for treating a contaminated influent, the method comprising: selecting a first coagulant and a second coagulant; introducing the first coagulant into the influent; introducing the influent into a first section, wherein the first section comprises a tube section comprising a plurality of tubes; in the first section, dividing the influent into a first flow and a sludge; discharging the first flow and the sludge from the first section; introducing the first flow into a second section comprising an adsorption clarifier wherein contaminates are removed to form a second flow; discharging the second flow from the second section; introducing the second flow to a third section comprising a media filter wherein additional contaminates are removed to form an effluent; discharging the effluent from the third section; introducing the second coagulant into at least one of the first flow and the second flow; connecting, via a first return line, the sludge with a position upstream of, and in fluid communication with, the first section; pumping, via the first return line, at least a portion of the sludge from the first section to the position upstream of the first section and mixing the sludge with the influent; introducing a third coagulant into the first return line before the portion of sludge is mixed with the influent; connecting, via at least one additional return line, a position downstream of the second section, to a position upstream of, and in fluid communication with, the first section; and pumping, via the at least one additional return line, a portion of the contaminates from a position downstream of the second section to a position upstream of the first section and mixing the contaminates with the influent.