发明名称 |
Nanofiltration system for water softening with internally staged spiral wound modules |
摘要 |
A spiral wound membrane filtration module is operated with a single pass through the feed side and without cross-flow on the permeate side. Recovery is 70% or more and feed side velocities are between 0.05 and 0.4 feet per second. The module may have dams in the spacer material on the shell/feed side to provide a feed path with multiple passes across the membrane leaves. A small-scale system for using such a module, for example to soften and filter water with a nanofiltration membrane, is described. The system includes a chemical cleaning apparatus and process.
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申请公布号 |
US2004222158(A1) |
申请公布日期 |
2004.11.11 |
申请号 |
US20040798310 |
申请日期 |
2004.03.12 |
申请人 |
HUSAIN HIDAYAT;COTE PIERRE LUCIEN;KENT FRASER CHARLES |
发明人 |
HUSAIN HIDAYAT;COTE PIERRE LUCIEN;KENT FRASER CHARLES |
分类号 |
B01D61/00;B01D61/04;B01D61/08;B01D61/10;B01D61/12;B01D61/18;B01D63/10;B01D65/02;C02F1/00;C02F1/44;(IPC1-7):B01D61/00 |
主分类号 |
B01D61/00 |
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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