Process and apparatus for removal of biocolloids from water

Details Process and apparatus for removal of biocolloids from water Process and apparatus for removal of biocolloids from water

2006-03-07

2010-10-12

Griffin, Walter D (Department: 1797)

Liquid purification or separation

Processes

Utilizing electrical or wave energy directly applied to...

Reexamination Certificate

active

07811460

ABSTRACT:
Biocolloids, e.g.Cryptosporidium parvumoocysts, are removed from water by filtration using a packed bed of a granular filter medium, preferably MgO, establishing an electric field across the packed bed, perpendicular to the flow of the water through the packed bed. The packed bed is provided in an annular space between two concentric electrodes.

REFERENCES:
patent: 3933629 (1976-01-01), Smith
patent: 4048068 (1977-09-01), Hirs
patent: 4168228 (1979-09-01), Mallatt et al.
patent: 4172781 (1979-10-01), Walk et al.
patent: 5308586 (1994-05-01), Fritsche et al.
patent: 5419816 (1995-05-01), Sampson et al.
patent: 5843308 (1998-12-01), Suozzo et al.
patent: 5997750 (1999-12-01), Rozelle et al.
patent: 6110374 (2000-08-01), Hughes
patent: 6140040 (2000-10-01), Palm et al.
patent: 6180016 (2001-01-01), Johnston et al.
patent: 6524477 (2003-02-01), Hughes
patent: 6780306 (2004-08-01), Schlager et al.
patent: 6866704 (2005-03-01), Koslow
patent: 6872305 (2005-03-01), Johnson et al.
patent: 6875357 (2005-04-01), Mikkelson et al.
patent: 2003/0159932 (2003-08-01), Betts et al.
Fogel, D. et al, “RemovinggiardiaandCryptosporidiumby Slow Sand Filtration.” J. AWWA, 1993, vol. 88, pp. 77-84.
Frey, M.M. et al, “Critical Evaluation ofCryptosporidiumResearch and Research Needs.” AWWA Research Foundation and American Water Works Association, Denver, Co. 1995.
Huck, P.M. et al, “Effects of Filter Operation inCryptosporidiumRemoval” J. AWWA 2002, vol. 94, pp. 97-111.
Ongerth, J.E. et al “Testing of Diatomaceous Earth Filtration for Removal ofCryptosporidiumoocysts.” J. AWWA, 2001, vol. 93, pp. 54-63.
Plummer, J.D. et al, “RemovingCryptosporidium parvumby Dissolved Air Flotation” J. AWWA, 1995, vol. 87, pp. 85-95.

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