The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 20, 2013
Filed:
May. 14, 2009
Fufang Zha, West Ryde, AU;
Anthony James Stubbs, Ryde, AU;
Fufang Zha, West Ryde, AU;
Anthony James Stubbs, Ryde, AU;
Siemens Industry, Inc., Alpharetta, GA (US);
Abstract
A method of cleaning a membrane filtration module (), the module () including at least one membrane () located in a feed-containing vessel (), the membrane () 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operation wherein feed containing contaminant matter is applied to one side of the membrane wall and filtrate is withdrawn from the other side of the membrane wall.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 comprising the steps of: suspending the filtration operation; performing a cleaning process on the membrane wall to dislodge contaminant matter therefrom into liquid surrounding the membrane (); performing a high velocity sweep of the feed-containing vessel () to remove the liquid containing the dislodged contaminant matter; and recommencing the filtration operation. An improved gas scouring method is also disclosed.