CONCENTRATION OF WATERBORNE PATHOGENIC ORGANISMS

摘要

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 (34) 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 (30). The method has been tested for its capacity for recovering pathogenic protozoan parasites such as Cryptosporidium and Giarda from contaminated water, and recovery rates of up to 100 % have been observed.