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:
May. 27, 2008
Filed:
Sep. 13, 2006
Applicants:
Seong-hoon Yoon, Naperville, IL (US);
John H. Collins, Bloomingdale, IL (US);
Inventors:
Seong-Hoon Yoon, Naperville, IL (US);
John H. Collins, Bloomingdale, IL (US);
Assignee:
Nalco Company, Naperville, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C02F 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Cationic polymers having a molecular weight greater than about 200,000 can be added to the activated sludge in an MBR for industrial wastewater treatment for reasons, which include: conditioning the activated sludge; improving flux through a membrane in the MBR; reducing fouling of the of the membrane in the MBR; and reducing foaming of the activated sludge in the MBR.