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:
Jan. 13, 2009
Filed:
Feb. 12, 2007
Michael A. Dimitriou, Richmond, VA (US);
Joseph G. Krall, Grafton, WI (US);
David Rice, Port Washington, WI (US);
Velupillai Yogendran, Warwickshire, GB;
Roger J. Byrne, Mequon, WI (US);
Kenneth P. George, Grafton, WI (US);
John E. Koch, Iii, Wauwatosa, WI (US);
Michael A. Dimitriou, Richmond, VA (US);
Joseph G. Krall, Grafton, WI (US);
David Rice, Port Washington, WI (US);
Velupillai Yogendran, Warwickshire, GB;
Roger J. Byrne, Mequon, WI (US);
Kenneth P. George, Grafton, WI (US);
John E. Koch, III, Wauwatosa, WI (US);
ITT Manufacturing Enterprises, Inc., Wilmington, DE (US);
Abstract
A membrane filtration system comprising one or more submerged ultrafiltration or microfiltration membrane assemblies at ambient pressure, with mixed liquor is discharged underneath each membrane assembly. In a sequenced batch reactor system, a coarse bubble air diffuser for scouring each membrane assembly is supplied with air only during the backwash cycle of the filtration system and not during the filtration cycle. In a membrane bioreactor system, the biological treatment section is physically separated from the filtration section and fine bubble air diffusion is used in the biological treatment section.