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:
Sep. 28, 1993
Filed:
Dec. 26, 1989
Applicant:
Inventors:
Henry Rastelli, New Fairfield, CT (US);
Jenny L Pai, Brookfield, CT (US);
Carl J Kjellson, Fishkill, NY (US);
Assignee:
UOP, Des Plaines, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; C02F / ;
U.S. Cl.
CPC ...
203 41 ; 203 10 ; 203 49 ; 210672 ; 210673 ; 210689 ; 210691 ; 210664 ; 210669 ; 95142 ;
Abstract
Ground water which contains heavy metal ions and toxic volatile organic compounds is purified by passing an air stream through it to purge out the organic compounds, adsorbing the displaced organic compounds on a molecular sieve and destroying them using a strong oxidizing agent such as hydrogen peroxide. This procedure avoids having the heavy metal ions from the water collect on the molecular sieve which causes the destruction of the oxidizing agent.