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. 02, 1977
Filed:
May. 08, 1975
Applicant:
Inventors:
Kenneth Cecil Smith, Roydon, EN;
Michael Ernest Garrett, Woking, EN;
Assignee:
BOC Limited, London, EN;
Primary Examiner:
Int. Cl.
CPC ...
C02C / ;
U.S. Cl.
CPC ...
210-9 ; 210 17 ; 210150 ; 210170 ;
Abstract
The invention provides a method of, and apparatus for, treating sewage flowing through a sewer, wherein an oxygenating gas is introduced under pressure into the sewage and is dissolved therein and the thus oxygenated sewage is contact with a matrix of solid material carrying micro-organisms effective to reduce the Biochemical Oxygen Demand of the sewage, the matrix extending across a region inside the sewer. The treatment may be performed in a gravity sewer or in a rising or pumping sewer.