| 摘要 |
PROBLEM TO BE SOLVED: To providing a ceramic filter permitting reduction of the number of times of back washing of the filter and minimization of necessary cleaning with a chemical and its manufacturing method. SOLUTION: The ceramic filter 1 comprises a porous body 2 having two end surfaces 4a and 4b, an outer peripheral surface and a supporting body 50 formed with two or more main flow passages for a to-be-cleaned fluid 62 extending through the end surfaces 4a and 4b, an intermediate membrane 52 formed on the inside wall surface of the main flow passages, and a filter membrane 54 formed on the surface of the intermediate membrane 52. The fluid 62, a to-be-cleaned water, flowing from an opening on the end surface 4a side of a main flow passage 3 is caused to pass through the porous body 2 to clean and taken out from the outer peripheral surface of the porous body 2 as a cleaned fluid 60, cleaned water. The ceramic filter 1 has a large number of protruded parts on the surface of the intermediate membrane 52, and a large number of protruded parts are also formed on the filter membrane 54 along the contour of the intermediate membrane 52. COPYRIGHT: (C)2007,JPO&INPIT
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