Evoqua Water Technologies Pte. Ltd.

Siemens Industry, Inc.

Huw Alexander Lazaredes

Bruce Gregory Biltoft

Zhiyi Cao

Robert James McMahon

Michael Collignon

Tomasz Swiatek

Peter G Rogers

Stephen Bowmer

James W Polson

Jen Thai Law

Thomas William Beck

Fufang Zha

Warren Thomas Johnson

Ying Hao Teo

Lisa Kathleen Leckie

Robert James Mcmahon

Michael Collingnon

In a first membrane filtration module comprises a membrane module comprising a plurality of permeable hollow membranes; a fluid distribution device adapted to removably surround at least a portion of the membranes of the membrane module, the fluid distribution device comprising a plurality of through-hole openings for distributing a fluid, and the fluid distribution device adapted to distribute a flow of fluid along a surface of the permeable hollow membranes. In a second membrane filtration device comprises a membrane module comprising a plurality of permeable hollow membranes, each of the permeable hollow membranes having a surface; and a gas distribution device: adapted to distribute gas bubbles to the surface of the permeable hollow membrane, adapted to removably surround at least a portion of the plurality of permeable hollow membranes, and defining a plurality of through openings for distributing the gas bubbles to the membranes.

Fluid flow distribution device

An aeration device configured to be fitted to a membrane filtration module having membranes mounted therein. The aeration device comprises a sleeve configured to at least partially surround the membrane filtration module. The sleeve has one end adapted to engage with the membrane filtration module and another end adapted to engage with a filtrate collection conduit or manifold.

Aeration device for filtration system

Filtration header

A module arrangement () according to an embodiment of the invention consists of a plurality of membrane modules () arranged in a two dimensional array () and extending between upper and lower block-type manifolds () and (), respectively. The array of modules is further divided into sub-groups of modules () separated from each other by space () extending transversely across the membrane array (). An integrated support frame () is positioned in the space () between the sub-groups () and is fixed to the upper and lower manifold blocks () and () to form an integrated support structure within the module array ().

Frame system for membrane filtration modules

A method of backwashing a membrane filtration module (), said module () including one or more membranes () located in a feed-containing vessel (), the membranes () having 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 including: removing liquid from the feed-containing vessel () until the level of liquid in the feed-containing vessel () falls to a first level (L) below an upper level of the membranes; suspending the filtration operation; performing a liquid backwash of the membrane wall until liquid level within the feed-containing vessel () rises to a second predetermined level (L) above said first level; aerating the membrane surface with gas bubbles to dislodge fouling materials therefrom; performing a sweep or drain down of the feed-containing vessel () to remove the liquid containing the dislodged contaminant matter; and recommencing the filtration operation.

Backwash

Growing community of inventors

Woolloomooloo, Australia

Huw Alexander Lazaredes