Concentration of waterborne pathogenic organisms

Details Concentration of waterborne pathogenic organisms Concentration of waterborne pathogenic organisms

1997-08-11

1999-01-12

Reifsnyder, David A.

Liquid purification or separation

Processes

Separating

210787, 422 72, 494 43, B01D 126

Patent

active

058582517

ABSTRACT:
A method of concentrating waterborne pathogenic organisms from water potentially contaminated by dilute densities of the organisms is described. Potentially contaminated water is directed along an elongated flow path which rests generally within a plane perpendicular to an axis of rotation, and is subjected to centrifugal forces by rotating the flow path about the rotational axis. The method may be executed by use of a conventional continuous flow channel-type blood plasmapheresis centrifuge. The method has been tested for its capability for recovering pathogenic protozoan parasites such as Cryptosporidium and Giardia from contaminated water, and recovery rates of up to 100% have been observed.

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