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(60) Provisional application No. 60/901,624, filed on Feb. 14, 2007. 

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(52) U.S. Cl. CPC .......... C02F 115236 (2013.01); C02F 115245 (2013.01); C02F 11542 (2013.01); C02F 1166 (2013.01); C02F 2101/101 (2013.01); C02F 2101/103 (2013.01); C02F 2101/105 (2013.01); C02F 2101/106 (2013.01); C02F 2101/12 (2013.01); C02F 2101/163 (2013.01); C02F 2101/166 (2013.01); C02F 2101/203 (2013.01); C02F 2101/206 (2013.01); C02F 2101/22 (2013.01); C02F 2101/30 (2013.01); C02F 2103/10 (2013.01) 

( 58) Field of Classification Search CPC .. C02F 1/5425; C02F 1/56; C02F 1/62; C02F 1/66; C02F 9/00; C02F 2103/10; C02F 2101/10; C02F 2101/22; C02F 2101/30; 

## Related U.S. Application Data 

continuation of application No. 12/527,325, filed as application No. PCT/US2008/002092 on Feb. 14, 2008, now Pat. No. 8,585,903, which is a continu› ation-in-part of application No. 11/809,893, filed on May 31, 2007, now abandoned. 

C02F 2101/101; C02F 2101/103; C02F 2101/106; C02F 2101/105; C02F 2101/163; C02F 2101/166; C02F 2101/203; C02F 2101/206; BOID 11/02; BOID 11/028; BOID 11/0288; BOID 11/04; BOID 11/0488; BOID 11/0492; BOID 21/01; BOID 2221/04 USPC ....... 210/634, 638, 639, 669, 702, 705, 708, 210/712, 729, 732, 734, 735, 787, 210/801-806, 912, 913, 683, 684, 688; 252/60, 175, 179-181; 422/258, 259; 423/54 

See application file for complete search history. 

## (56) References Cited 

## U.S. PATENT DOCUMENTS 

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* cited by examiner 

