HYBRID TFC RO MEMBRANES WITH NITROGEN ADDITIVES
    2.
    发明申请
    HYBRID TFC RO MEMBRANES WITH NITROGEN ADDITIVES 有权
    混合TFC RO膜与硝酸添加剂

    公开(公告)号:US20110005997A1

    公开(公告)日:2011-01-13

    申请号:US12826294

    申请日:2010-06-29

    IPC分类号: B05D3/10 B05D3/06 B01D61/08

    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.

    摘要翻译: 使用氯化水作为进料流的RO膜可以防止氯被包含反应性氮的保护层的损害,所述反应性氮在膜的表面上形成氯胺以减少氯渗透。 该保护层还提供了显着的抗污染能力,无论是氯化还是未氯化的进料流,因为氯胺是抗菌的。 虽然在使用中氯是失去的,但防污层或涂层可以用额外的氯进行再充电,而不会损坏鉴别层。 抗污垢层或涂层可有利地用于薄膜复合材料,TFC,用于正向和反向渗透的膜可以包括纳米颗粒,单水解和/或二水解的TMC和/或碱土金属络合物或其它添加剂 。