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:
Aug. 10, 1993
Filed:
Jun. 04, 1991
Applicant:
Inventor:
Michael E Potts, Colorado Springs, CO (US);
Assignee:
Analytical Development Corporation, Colorado Springs, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210719 ; 210720 ; 210724 ; 210723 ; 210738 ; 210912 ; 210913 ; 252631 ;
Abstract
A method and composition for treating wastewater streams is provided. The composition includes a zirconium salt and preferably a zirconium carbonate. In addition to the zirconium salt; a ferrate, a reducing agent, a weighting agent and an anionic coagulating agent can also be employed. The method includes the steps of adjusting the pH of a wastewater stream to between about pH 6.5 and about pH 14, adding the composition, precipitating contaminants from the wastewater stream and separating a solution having a reduced contaminants content therefrom.