US 7,611,632 B1
	Method of conditioning mixed liquor using a tannin containing polymer
Sijing Wang, Shanghai (China); Stephen Robert Vasconcellos, Doylestown, Pa. (US); and Jianqiu Wang, Beijing (China)
Assigned to General Electric Company, Schenectady, N.Y. (US)
Filed on Nov. 07, 2008, as Appl. No. 12/266,853.
Int. Cl. C02F 1/00 (2006.01)

U.S. Cl. 210—698

26 Claims

1. A method of conditioning mixed liquor in a membrane bioreactor (MBR) system, comprising: adding an effective amount of a tannin containing polymer to the mixed liquor.