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:
Jun. 10, 1980
Filed:
Aug. 22, 1977
Applicant:
Inventors:
William C McCarthy, Bartlesville, OK (US);
Howard W Goard, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02C / ;
U.S. Cl.
CPC ...
210-7 ; 210-8 ; 210 17 ; 210 18 ;
Abstract
In a process for biotreating industrial waste water, a portion of the effluent is treated with activated carbon and recycled to the biotreater. This results in a substantial improvement in the biotreater performance. In another embodiment, the biotreatment is an activated sludge process and the clarifier effluent is filtered to stop loss of bacteria and periodically the filter is backwashed to return the bacteria to the system.