Immersed membrane apparatus

Liquid purification or separation – Plural distinct separators – Filters

Reexamination Certificate

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Details

C210S321780, C210S321800, C210S636000, C210S321890, C210S257200, C210S456000, C210S258000, C210S321690, C210S650000, C210S416100, C210S500230, C210S321870

Reexamination Certificate

active

06899811

ABSTRACT:
An apparatus for filtering a liquid in a tank has a plurality of elements and a frame for holding the elements while they are immersed in the liquid. The elements have a plurality of hollow fibre membranes attached to and suspended between an upper header and a lower header. The membranes are in fluid communication with one or more permeate channels in one or more of the headers. Releasable attachments between the headers and the frame allow the frame to releasably hold the elements by their headers. The size and configuration of the frame determines the positions of the upper and lower headers of each element relative to each other. Connections between the permeate channels and one or more permeate collection tubes attached to the frame are releasable and resealable connections which are made or broken automatically by the movements involved in inserting or removing an element into or out of the frame.

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Technical Drawings of ZW500C RO module; Zenon Environmental Inc; pp. 1-3, drawings not published but relate to a module used or sold in the U.S.A. prior to May 17, 2001.

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