High solids module

Details High solids module High solids module

2006-03-28

2006-03-28

Drodge, Joseph (Department: 1723)

Liquid purification or separation

Casing divided by membrane into sections having inlet

With membrane cleaning or sterlizing means

C210S650000, C210S321690, C210S321880

Reexamination Certificate

active

07018533

ABSTRACT:
A method of cleaning a membrane filtration module is disclosed. The module comprises at least one or more longitudinally extending membranes located in a feed-containing vessel. The membranes have a permeable wall which is subjected to a filtration operation wherein feed containing contaminant matter is applied to one side of the membrane wall and filtrate is withdrawn from the other side of the membrane wall. The method comprises the steps of suspending the filtration operation; performing a cleaning process on the membrane wall to dislodge contaminant matter from the membrane wall into liquid surrounding the membrane: performing a sweep of the feed-containing vessel substantially parallel to the longitudinally extending membranes to remove the liquid containing the dislodged contaminant matter, at least in part, through an opening in a header or other part of the module, and then recommencing the filtration operation.

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