| 摘要 |
PROBLEM TO BE SOLVED: To provide a removing method of pathogenic protozoa and a separating membrane used therein which reliably removes pathogenic protozoa such as Cryptospolidium and Dialdia, enhances filtration speed and, moreover, drastically reduces equipment cost and running cost. SOLUTION: In this removing method of pathogenic protozoa and a separating membrane used therein, the separation membrane of which the fraction grain size is >=1μm, the perfect removal grain size is <=2.9μm and the permeation rate of pure water is >=30000 L/m<2> /hr/98 kPa is used, thereby, the filtration is performed and the pathogenic protozoa is removed.
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