METHOD FOR TRAPPING/COLLECTING INFECTIOUS MICROORGANISM, AND ITS DEVICE

摘要

PROBLEM TO BE SOLVED: To enable improvement of detection sensitivity and automation/labor saving of operations by collecting water-borne infectious microorganisms, especially an important cryptosporidium, from sample water with high efficiency and treating a large amount of the sample water in a short time. SOLUTION: A method for carrying out the membrane filtration of the sample water and washing the filtration membrane to trap water-insoluble objects contained in the sample water comprises a process for supplying a prescribed amount of the sample water to an external pressure type porous hollow fiber filtration membrane, and a process for pressurizing the secondary side of the external pressure type porous hollow fiber filtration membrane and at the same time irradiating the surface of the hollow fiber filtration membrane with ultrasonic waves from the primary side. Peeled material is collected from the external pressure type porous hollow fiber filtration membrane. COPYRIGHT: (C)2006,JPO&NCIPI