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:
Mar. 13, 2012
Filed:
May. 10, 2007
Jirachote Phattaranawik, Trondheim, NO;
Anthony G. Fane, Grays Point, AU;
Fook-sin Wong, Singapore, SG;
Jirachote Phattaranawik, Trondheim, NO;
Anthony G. Fane, Grays Point, AU;
Fook-Sin Wong, Singapore, SG;
Nanyang Technological University, Singapore, SG;
Abstract
The failure of an upstream filtration membrane, or the presence of a foulant in a fluid is detected using a membrane-based detector. The fluid or an effluent from the filtration membrane is directed to permeate through a first permeable membrane, and from the first membrane to permeate through a second permeable membrane. A ratio between (P-P) and (P-P) is determined, where Pis a first pressure at a feed side of the first membrane, Pis a second pressure between the first and second membranes, and Pis a third pressure at a permeate side of the second membrane. The ratio is correlated with the failure of the filtration membrane, or with the presence of the foulant.