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. 09, 2005
Filed:
Dec. 26, 2002
John H. Collins, Bloomingdale, IL (US);
Kristine S. Salmen, Glen Ellyn, IL (US);
Deepak A. Musale, Naperville, IL (US);
Seong-hoon Yoon, Naperville, IL (US);
William J. Ward, Glen Ellyn, IL (US);
John H. Collins, Bloomingdale, IL (US);
Kristine S. Salmen, Glen Ellyn, IL (US);
Deepak A. Musale, Naperville, IL (US);
Seong-Hoon Yoon, Naperville, IL (US);
William J. Ward, Glen Ellyn, IL (US);
Nalco Company, Naperville, IL (US);
Abstract
A method of conditioning mixed liquor in a membrane biological reactor comprising adding to the mixed liquor an effective coagulating and flocculating amount of one or more water soluble cationic, amphoteric or zwitterionic polymers, or combination thereof and methods of reducing membrane fouling, enhancing membrane flux and reducing sludge production.