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:
Nov. 03, 2009
Filed:
Mar. 15, 2007
Harry Futselaar, Hengelo, NL;
Bastiaan Blankert, Enschede, NL;
Bernardus Henricus Louis Betlem, Enschede, NL;
Matthias Wessling, Enschede, NL;
Harry Futselaar, Hengelo, NL;
Bastiaan Blankert, Enschede, NL;
Bernardus Henricus Louis Betlem, Enschede, NL;
Matthias Wessling, Enschede, NL;
NORIT Membraan Technologie B.V., Enschede, NL;
Abstract
A method of filtering a fluid wherein after filtering a contaminated fluid, which causes the formation of a filter cake, a substantially non-contaminated fluid is fed through the filter cake and filter at varying flux or at varying driving force. At the same time the necessary driving force or the obtained flux, respectively, are measured. The measured value and the respective value setting are compared with at least one standard set of data and on the basis of this comparison the fouling status of the fluid to be filtered, the filter and the filter cake is determined. The method makes it possible to accurately determine characteristics of a fluid to be filtered. This may be realized by simply varying the flux and measuring the driving force at different flux values, or vice versa.