Filter cassette article, and filter comprising same

    公开(公告)号:US11654397B2

    公开(公告)日:2023-05-23

    申请号:US17208225

    申请日:2021-03-22

    CPC classification number: B01D63/082 B01D25/215 B01D2313/44

    Abstract: A filtration cassette including a multilaminate array of sheets including filter sheets alternating with permeate sheet members and retentate sheet members, and a cross-flow filter device comprising a multiplicity of stacked filtration cassettes of such type. The improvements associated with the filtration cassettes described herein include, but are not limited to, at least one of: reinforced inlet(s) providing for longevity and improved cleanability of the cassettes; spacer permeate screens to limit throughput restriction; stainless steel or otherwise stiffened permeate sheets to prevent movement and increase flux; and stainless steel permeate sheets that can be used with ultrasonic transmission to minimize fouling of the filter sheets and extend cleaning cycles. Advantageously, the filtration cassettes are more resistant to higher temperatures than the filtration cassettes of the prior art.

    PERMEATE CHANNEL ALTERATIONS FOR COUNTER CURRENT FILTRATION FOR USE IN CROSS-FLOW FILTRATION MODULES USEFUL IN OSMOTIC SYSTEMS
    20.
    发明申请
    PERMEATE CHANNEL ALTERATIONS FOR COUNTER CURRENT FILTRATION FOR USE IN CROSS-FLOW FILTRATION MODULES USEFUL IN OSMOTIC SYSTEMS 审中-公开
    用于在流动过滤模块中用于逆流过滤的渗透流量校正在OSMO系统中有用

    公开(公告)号:US20150209731A1

    公开(公告)日:2015-07-30

    申请号:US14425681

    申请日:2013-09-06

    Abstract: The present invention relates to modification to permeate channels and permeate materials in a cross-flow filtration system to improve performance in counter current filtration having both retentate channels and permeate channels wherein a solution is pumped through one of the channels and drawn through a membrane to one of the other channels to assist in positive pressure driven filtration by using the osmotic pressure, concentration, or preferential solubility difference between the retentate and permeate flow streams thereby increasing or altering the flux through the membrane separating the flow streams.

    Abstract translation: 本发明涉及对交叉流过滤系统中的渗透通道和渗透物质的改进,以改善具有滞留通道和渗透通道的逆流过滤性能,其中将溶液泵送通过其中一个通道并通过膜拉至一个 的其他通道,以通过使用渗透压和渗透流流之间的渗透压,浓度或优先溶解度差来辅助正压力驱动过滤,从而增加或改变通过分离流动流的膜的通量。

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