(EP883571-A1)      Pathogenic organisms are concentrated from water. The water is continuously fed into an elongated flow path (34) which includes a separation section where the water flow is oriented tangentially with respect to a rotational axis. The flow path is subjected to centrifugal forces by spinning the flow path about the rotational axis so that the centrifugal force is perpendicular to the separation section.    USE -   The method concentrates waterborne pathogenic organisms from water potentially contaminated by dilute densities of the organisms. The pathogens include Cryptosporidium, Giardia, Microsporidia and Cyclospora.    ADVANTAGE -   The apparatus reduces process and material costs, uses less time and labour, and produces efficient separation. Accurate counts of contamination levels are possible allowing effective monitoring and treatment.    (US5846439-A)      Pathogenic organisms are concentrated from water. The water is continuously fed into an elongated flow path (34) which includes a separation section where the water flow is oriented tangentially with respect to a rotational axis. The flow path is subjected to centrifugal forces by spinning the flow path about the rotational axis so that the centrifugal force is perpendicular to the separation section.    USE -   The method concentrates waterborne pathogenic organisms from water potentially contaminated by dilute densities of the organisms. The pathogens include Cryptosporidium, Giardia, Microsporidia and Cyclospora.    ADVANTAGE -   The apparatus reduces process and material costs, uses less time and labour, and produces efficient separation. Accurate counts of contamination levels are possible allowing effective monitoring and treatment.    (JP2000506771-W)      Pathogenic organisms are concentrated from water. The water is continuously fed into an elongated flow path (34) which includes a separation section where the water flow is oriented tangentially with respect to a rotational axis. The flow path is subjected to centrifugal forces by spinning the flow path about the rotational axis so that the centrifugal force is perpendicular to the separation section.    USE -   The method concentrates waterborne pathogenic organisms from water potentially contaminated by dilute densities of the organisms. The pathogens include Cryptosporidium, Giardia, Microsporidia and Cyclospora.    ADVANTAGE -   The apparatus reduces process and material costs, uses less time and labour, and produces efficient separation. Accurate counts of contamination levels are possible allowing effective monitoring and treatment.    (EP883571-B1)      Pathogenic organisms are concentrated from water. The water is continuously fed into an elongated flow path (34) which includes a separation section where the water flow is oriented tangentially with respect to a rotational axis. The flow path is subjected to centrifugal forces by spinning the flow path about the rotational axis so that the centrifugal force is perpendicular to the separation section.    USE -   The method concentrates waterborne pathogenic organisms from water potentially contaminated by dilute densities of the organisms. The pathogens include Cryptosporidium, Giardia, Microsporidia and Cyclospora.    ADVANTAGE -   The apparatus reduces process and material costs, uses less time and labour, and produces efficient separation. Accurate counts of contamination levels are possible allowing effective monitoring and treatment.