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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0316593 (2005-12-22) |
등록번호 | US8048306 (2011-10-17) |
우선권정보 | AU-1996-O4312(1996-12-20) |
발명자 / 주소 |
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출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 3 인용 특허 : 405 |
A method and apparatus for removing fouling materials from the surface of a plurality of porous membranes (9) arranged in a membrane module (4) by providing, from within the module, by means (10) other than gas passing through the pores of said membranes, gas bubbles in a uniform distribution relati
A method and apparatus for removing fouling materials from the surface of a plurality of porous membranes (9) arranged in a membrane module (4) by providing, from within the module, by means (10) other than gas passing through the pores of said membranes, gas bubbles in a uniform distribution relative to the porous membrane array such that the bubbles move past the surfaces of the membranes (9) to dislodge fouling materials therefrom. The membranes (9) are arranged in close proximity to one another and mounted to prevent excessive movement therebetween. The bubbles also produce vibration and rubbing together of the membranes to further assist removal of fouling materials.
What is claimed is: 1. A method of removing accumulated solids from outer surfaces of porous hollow fiber membranes arranged in close proximity to one another and mounted between potting heads with a cured potting material, wherein the membranes are situated in a vessel, the method comprising the st
What is claimed is: 1. A method of removing accumulated solids from outer surfaces of porous hollow fiber membranes arranged in close proximity to one another and mounted between potting heads with a cured potting material, wherein the membranes are situated in a vessel, the method comprising the steps of:backwashing the membranes to dislodge accumulated solids from the outer surfaces of the membranes;restricting movement of the membranes;providing, through at least one porous tube disposed among and substantially parallel to the membranes, uniform gas bubbles which pass out among the membranes scouring solids on the outer surfaces of the membranes;providing gas bubbles through a porous sheet and a plurality of gas distribution openings in a first potting head, the plurality of gas distribution openings each having a diameter from about 0.01 mm to about 5 mm, and the porous sheet having uniformly distributed pores and a smaller pore size relative to the gas distribution openings in the first potting head; andremoving dislodged accumulated solids from the vessel.
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