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. 05, 1991
Filed:
Jan. 05, 1990
Applicant:
Inventors:
L Fred Roensch, Chagrin Falls, OH (US);
Hershel Zamechek, Canton, CT (US);
Kelvin Y Chang, Solon, OH (US);
Eric J Dlugosz, Maplewood, NJ (US);
Assignee:
Mogul Corporation, Chagrin Falls, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210698 ; 55 53 ; 210699 ; 210701 ; 210747 ; 210754 ; 210759 ; 210760 ; 210764 ; 210908 ;
Abstract
A method of treating and removing volatile organic contaminants from ground water by treating the water with effective amounts of a water-soluble polymeric sequesterant comprising polymers derived from acrylic acid or organic acid, followed by the addition of a biocide, e.g., chlorine, and then subsequently passing the treated water through a packed column or air stripper wherein the volatile organic contaminants are removed by passing air in a counter-direction to the flow of water at temperatures ranging from about 40.degree. to about 200.degree. F.