Method for removing Cryptosporidium oocysts from water

Details Method for removing Cryptosporidium oocysts from water Method for removing Cryptosporidium oocysts from water

2007-01-02

2007-01-02

Hruskoci, Peter A. (Department: 1724)

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

C210S727000, C210S730000, C210S764000

Reexamination Certificate

active

10836609

ABSTRACT:
A method for stabilizing and removingCryptosporidiumoocysts orGiardiacysts from water. The method comprises adding chitosan, a salt or solution of chitosan to water containingCryptosporidiumoocysts orGiardiacysts and a halogenating agent. The method may also include adding a secondary polyelectrolyte flocculant to the water. The resulting flocs are filtered to remove theCryptosporidiumoocysts orGiardiacysts.

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Avery, B.K., and A. Lemley, “Cryptosporidium: A Waterborne Pathogen,”Water Quality Information Center, National Agricultural Library, May 1996, <http://www.nal.usda.gov/wqic/cornell.html> [retrieved Feb. 25, 2004], 6 pages.

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