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    • 64. 发明申请
    • IMROVED REVERSE OSMOSIS OR NANOFILTRATION PROCESS FOR CLEANING WATER
    • 用于清洁水的逆转反应或纳米过程
    • WO2017013536A1
    • 2017-01-26
    • PCT/IB2016/054172
    • 2016-07-13
    • I.D.E. TECHNOLOGIES LTD
    • DRAK, AlexEFRAT, TomerZAKEN, Roi
    • B01D61/02B01D61/08B01D61/12C02F1/44C02F1/00
    • B01D61/02B01D61/08B01D61/12B01D2311/04B01D2311/08B01D2311/25B01D2311/2623B01D2311/2626B01D2311/268B01D2313/10C02F1/004C02F1/008C02F1/28C02F1/42C02F1/441C02F9/00C02F2209/03C02F2301/046C02F2303/24
    • A system for cleaning feed water of variable quality, the system comprising an inlet for selectively delivering feed water (FW) to one or other of at least two feed chambers (2,4), each feed chamber having a delivery pipe (2i, 4i) for delivering feed water to a reverse osmosis or nanofiltration (8); a pump (6) to deliver the feed water from one of the chambers (2, 4) through its associated delivery pipe (2i, 4i) to the reverse osmosis or nanofiltration (8) to create a concentrated feed stream and a product water stream (PW);return pipes (2R, 4R) for selectively returning the concentrated feed stream to one or other of the at least two feed chambers (2, 4); a product water outlet for removal of the product water (PW); and means for switching the delivery of the concentrated feed stream between the selectable return pipes (2R, 4R) upon detection of a predetermined reduction in the efficiency of the RO or NF process within one or other of the feed chambers (2, 4). The pressure of the concentrated feed stream is reduced to atmospheric pressure prior to its delivery back to the chamber and the feed stream passes through a desaturation unit (20).
    • 一种用于清洁可变质量的给水的系统,该系统包括用于选择性地将给水(FW)输送到至少两个进料室(2,4)中的一个或另一个的入口,每个进料室具有输送管(2i,4i )用于将进料水输送至反渗透或纳滤(8); 泵(6),用于将来自其中一个室(2,4)的进料水通过其相关联的输送管(2i,4i)输送到反渗透或纳滤(8)以产生浓缩的进料流和产物水流 (PW);用于选择性地将浓缩进料流返回到至少两个进料室(2,4)中的一个或另一个的回流管(2R,4R); 用于除去产品水(PW)的产品出水口; 以及用于在检测到在一个或另一个进料室(2,4)内预定的RO或NF过程的效率降低时在可选择的返回管(2R,4R)之间切换浓缩进料流的输送的装置。 浓缩进料流的压力在其输送回室之前降低至大气压,并且进料流通过去饱和单元(20)。