Evoqua Water Technologies Pte. Ltd.

Siemens Industry, Inc.

Siemens Water Technologies Pte. Ltd.

Other

Rohm and Haas Electronic Materials Singapore Pte, Ltd

Peter Zauner

Fufang Zha

Roger William Phelps

Gerin James

Joseph Edward Zuback

Tomasz Swiatek

Edward Joseph Zuback

A method of cleaning a membrane surface immersed in a liquid medium with a fluid flow, including the steps of providing a randomly generated intermittent or pulsed fluid flow along the membrane surface to dislodge fouling materials therefrom. A membrane module is also disclosed comprising a plurality of porous membranes () or a set of membrane modules () and a device () for providing a generally randomly generated, pulsed fluid flow such that, in use, said fluid flow moves past the surfaces of said membranes () to dislodge fouling materials therefrom.

Membrane cleaning with pulsed airlift pump

Methods for cleaning polymeric microfiltration or ultrafiltration membranes. The membrane may be contacted with a first cleaning solution including at least one oxidising agent. A second cleaning solution including at least one reducing agent may then be introduced to the membrane and first cleaning solution. The oxidising and reducing agents may undergo a neutralisation reaction to form an oxidation-neutral mixed cleaning solution. The membrane may be simultaneously cleaned during the neutralisation reaction.

Method of cleaning membranes

Water treatment membrane cleaning with pulsed airlift pump

A method of cleaning a membrane surface immersed in a liquid medium with a fluid flow, including the steps of providing a randomly generated intermittent or pulsed fluid flow along the membrane surface to dislodge fouling materials therefrom. A membrane module is also disclosed comprising a plurality of porous membranes () or set of membrane modules () and a device () for providing a generally randomly generated, pulsed fluid flow such that, in use, said fluid flow moves past the surfaces of said membranes () to dislodge fouling materials therefrom.

Airlift pump

Growing community of inventors

Springwood, Australia

Peter Zauner