发明名称 |
METHOD FOR TREATMENT WITH REVERSE OSMOSIS MEMBRANE |
摘要 |
A method for treatment with a reverse osmosis membrane to reduce decrease in flux that occurs even under the conditions that water supplied to a reverse osmosis membrane treatment apparatus contains only a trace amount of iron and that the formation of scales of substances such as calcium and silica is prohibited. A method for performing a treatment with a reverse osmosis membrane to treat raw water containing iron at 1000 mug/L or less as total iron with a reverse osmosis membrane, including a step of adding a compound having a sulfo group to the raw water. |
申请公布号 |
US2010025329(A1) |
申请公布日期 |
2010.02.04 |
申请号 |
US20080448876 |
申请日期 |
2008.01.22 |
申请人 |
KURITA WATER INDUSTRIES LTD. |
发明人 |
KAWAKATSU TAKAHIRO;HIRANO AKIHIDE |
分类号 |
C02F1/68;C02F1/44;C02F1/72 |
主分类号 |
C02F1/68 |
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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