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:
Feb. 10, 1998
Filed:
Oct. 11, 1995
Applicant:
Inventors:
Khalid Salman Jasim, Pierrefonds, CA;
Neil G Richardson, Saint Laurent, CA;
Assignee:
Domtar Inc., , CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ; C02F / ;
U.S. Cl.
CPC ...
210668 ; 210669 ; 210759 ; 210909 ; 210763 ;
Abstract
Aromatic organic contaminants in waste water efficiently removed by oxidizing the contaminants with hydrogen peroxide in the presence of a catalytic amount of ferrous ions, at an acid pH, to produce an oxidized water which may be passed through activated carbon to adsorb residual organic contaminants; the process is especially useful for treatment of contaminated water derived from a wood preservation treatment and containing polyaromatic hydrocarbons and phenols and/or chlorinated phenols.