	US 7,572,380 B2
	Method for oxyanion removal from ground water
Fred S. Cannon, State College, Pa. (US); Weifang Chen, State College, Pa. (US); Robert Parette, Throop, Pa. (US); Brian A. Dempsey, State College, Pa. (US); Fenglong Sun, State College, Pa. (US); and Jiying Zou, State College, Pa. (US)
Assigned to The Penn State Research Foundation, University Park, Pa. (US)
Filed on Oct. 25, 2005, as Appl. No. 11/257,727.
Application 11/257727 is a continuation in part of application No. 11/059733, filed on Feb. 17, 2005, granted, now 7,157,006.
Application 11/059733 is a continuation of application No. 10/164843, filed on Jun. 07, 2002, granted, now 6,881,348.
Claims priority of provisional application 60/690065, filed on Jun. 13, 2005.
Claims priority of provisional application 60/621993, filed on Oct. 25, 2004.
Claims priority of provisional application 60/296862, filed on Jun. 08, 2001.
Prior Publication US 2006/0102562 A1, May 18, 2006
Int. Cl. C02F 1/42 (2006.01)

U.S. Cl. 210—681 [210/683; 210/688; 502/416]

11 Claims

1. A carbonaceous material that has been loaded or preconditioned with at least one ionic organic species selected from the group consisting of: solid carbon carboxyl species, solid carbon hydroxyl species, solid carbon sulfonate species, solid carbon phenolic species, solid carbon lactone species, solid carbon amine species, solid carbon pyridenium species, cetylpyridinium, vinylbenzyltrimethylammonium, choline, and alkyl quaternary ammonium; and

at least one metal, alkaline earth metal, or halide.