发明名称 |
METHOD FOR OPERATING REVERSE OSMOSIS MEMBRANE DEVICE, AND REVERSE OSMOSIS MEMBRANE DEVICE |
摘要 |
Provide is a reverse osmosis membrane device that is capable of treating raw water containing membrane-fouling substance in large quantities, such as MBR-treated water, in a stable manner while preventing decreases in permeate flow rate, and a method for operating thereof. A method for operating a reverse osmosis membrane device that treats raw water containing high-molecular-weight organic matter, wherein the raw water contains high-molecular-weight organic matter having a molecular weight of 10,000 or more at a concentration of 0.01 ppm or more, wherein the reverse osmosis membrane device is equipped with a spiral-type reverse osmosis membrane element that has a membrane surface area satisfying the below formula (1), and wherein the reverse osmosis membrane device is operated at a permeate flux of 0.6 m/d or less: membrane surface area (m2)≧n2×(11/16)  (1) wherein n represents a diameter (inches) of the reverse osmosis membrane element. |
申请公布号 |
SG11201506179U(A) |
申请公布日期 |
2015.09.29 |
申请号 |
SG11201506179U |
申请日期 |
2014.02.14 |
申请人 |
KURITA WATER INDUSTRIES LTD. |
发明人 |
HAYAKAWA, KUNIHIRO;KAWAKATSU, TAKAHIRO |
分类号 |
C02F1/44;B01D61/02;B01D61/12;B01D63/10 |
主分类号 |
C02F1/44 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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