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:
Mar. 06, 1984
Filed:
Mar. 22, 1982
Applicant:
Inventor:
Theodore N Matsko, Richmond Heights, OH (US);
Assignee:
The Babcock & Wilcox Company, New Orleans, LA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210739 ; 137 93 ; 210743 ; 210754 ; 210764 ; 210 961 ; 210143 ; 210199 ;
Abstract
A method and apparatus for breakpoint chlorination is disclosed which utilizes a control dosing of chlorine as well as a base substance and sulfur dioxide to remove ammonia, disinfect and thereafter dechlorinate waste waters. The chlorine dosage is controlled according to a derivative of residual chlorine with respect to chlorine dosage to provide an accurate control of chlorine to insure oxidation of ammonia in the waste water.