Patent ID: 6814868
Filing Date: 2004-11-09
Classification: B01D,C02F,Y02W

Abstract:
A process for reducing hair, trash, or fibrous material concentration in a waste water treatment system, the process comprising:a) flowing water to be treated to the waste water treatment system, the waste water treatment system having a membrane filter; b) treating the water in the waste water treatment system and producing a mixed liquor, and a treated effluent by said membrane; c) removing a portion of mixed liquor from the waste water treatment system and passing the mixed liquor through a screen to remove hair, trash, or fibrous materials from the mixed liquor so that the average flow rate of the mixed liquor passing through the screen is not more than about 1.0 of the average design flow rate of the waste water treatment system; and d) recycling the screened mixed liquor to the waste water treatment system.