FLOW REVERSAL OF INTERNAL CIRCULATION MEMBRANE SEPARATION SYSTEMS

    公开(公告)号:US20240286084A1

    公开(公告)日:2024-08-29

    申请号:US18438441

    申请日:2024-02-10

    Applicant: Nadav Efraty

    Inventor: Nadav Efraty

    CPC classification number: B01D65/08 B01D2321/2083

    Abstract: The present invention provides a membrane separation process comprising a pressurized feed of solution that is combined with a repressurized, internal circulation of a concentrated solution. This combined flow of feed solution and concentrated solution may be introduced to either end of pressurized vessels containing membranes and this direction of flow is periodically reversed. This combination of repressurized internal circulation and reversal of the direction of flow allows for manipulations of concentration gradients both along the length of membranes in the pressure vessel and concentration gradients within the boundary layers at the surface of the membranes

    SYSTEMS AND METHODS FOR ACOUSTICALLY-ENHANCED MEMBRANE SEPARATION

    公开(公告)号:US20240181400A1

    公开(公告)日:2024-06-06

    申请号:US18525489

    申请日:2023-11-30

    Abstract: Systems and methods for acoustically-enhanced membrane separation are described. The system may generally include a separation membrane and an acoustically-responsive structure positioned proximate the upstream side of the separation membrane. The system may further include a transducer for generating an acoustic field, wherein the acoustic field causes microstructures extending from the acoustically-responsive structure to oscillate and thereby create streaming effects in the region between the distal ends of the microstructures and the upstream side of the separation membrane. These streaming effects can prevent or remove separation membrane fouling, prevent the formation of cake layers on the separation membrane, and/or remove cake layer formed on a separation membrane.

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