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公开(公告)号：EP2448657B1
公开(公告)日：2018-12-26
申请号：EP10800304.7
申请日：2010-06-29
申请人： NanoH2O Inc.
发明人： KURTH, Christopher James , KOEHLER, Jeffrey Alan , ZHOU, Meijuan , ANDERSON HOLMBERG, Brett , BURK, Robert Leon
CPC分类号： B01D67/0088 , B01D61/025 , B01D65/08 , B01D67/0093 , B01D69/02 , B01D69/125 , B01D71/56 , B01D2321/16 , B01D2321/162 , B01D2323/30 , B01D2323/38 , B01D2325/48
摘要： RO membranes using chlorinated water as a feed stream maybe protected from damage by the chlorine with a protective layer including reactive nitrogen which forms chloramines on the surface of the membrane that reduce chlorine penetration. This protective layer also provides substantial anti-fouling capabilities, whether used with a chlorinated or unchlorinated feed stream because the chloramines are anti-bacterial. Although chlorine is lost in use, the anti-fouling layer or coating can be recharged with additional chlorine without damaging the discrimination layer. The anti-fouling layer or coating may be advantageously used with Thin film composite, TFC, membranes for use in forward and reverse osmosis may include nanoparticles, monohydrolyzed and/or di-hydrolyzed TMC, and/or alkaline earth alkaline metal complexes or other additives.
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公开(公告)号：EP2448657A2
公开(公告)日：2012-05-09
申请号：EP10800304.7
申请日：2010-06-29
申请人： NanoH2O Inc.
发明人： KURTH, Christopher James , KOEHLER, Jeffrey Alan , ZHOU, Meijuan , ANDERSON HOLMBERG, Brett , BURK, Robert Leon
CPC分类号： B01D67/0088 , B01D61/025 , B01D65/08 , B01D67/0093 , B01D69/02 , B01D69/125 , B01D71/56 , B01D2321/16 , B01D2321/162 , B01D2323/30 , B01D2323/38 , B01D2325/48
摘要： RO membranes using chlorinated water as a feed stream maybe protected from damage by the chlorine with a protective layer including reactive nitrogen which forms chloromines on the surface of the membrane that reduce chlorine penetration. This protective layer also provides substantial anti-fouling capabilities, whether used with a chlorinated or unchlorinated feed stream because the chloramines are anti-bacterial. Although chlorine is lost in use, the anti-fouling layer or coating can be recharged with additional chlorine without damaging the discrimination layer. The anti-fouling layer or coating may be advantageously used with Thin film composite, TFC, membranes for use in forward and reverse osmosis may include nanoparticles, monohydrolyzed and/or di-hydrolyzed TMC, and/or alkaline earth alkaline metal complexes or other additives.
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