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. 23, 1979
Filed:
Jul. 08, 1975
Applicant:
Inventors:
Bradley S Kirk, Plainfield, NJ (US);
Raymond M Chappel, Mendham, NJ (US);
Assignee:
Airco, Inc., Montvale, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
C02C / ; C02C / ; C02B / ;
U.S. Cl.
CPC ...
210-7 ; 210 14 ; 210 15 ; 210 60 ; 210 / ; 210194 ; 210218 ; 210219 ; 210220 ;
Abstract
This invention provides improved methods and apparatus for dissolving oxygen in wastewater treatment processes such as is required to satisfy the biological oxygen demand in the activated sludge process for the biodegradation of organic impurities. The invention enables attainment of high concentrations of dissolved oxygen with minimum consumption of oxygen and power. Wastewater with the high concentration of dissolved oxygen may be mixed with a larger volume of untreated wastewater to achieve the desired oxygen concentration and maintain volatile solids in suspension in the bulk liquid for optimum efficiency of purification.