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:
Jun. 06, 1995
Filed:
Oct. 25, 1993
Applicant:
Inventor:
Karen R Tubergen, Mount Prospect, IL (US);
Assignee:
Nalco Chemical Company, Naperville, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
2041415 ; 204149 ; 204229 ; 204231 ; 204275 ; 204294 ;
Abstract
A chemically modified electrode is provided for selectively and sensitively detecting the presence of precipitant within wastewater. A system and a method, utilizing the chemically modified electrode, are provided to monitor and control feed of a precipitant to a reservoir containing a fluid, such as wastewater, with metals therein. The chemically modified electrode in conjunction with a reference electrode are provided in the reservoir for measuring current flowing therebetween. In response, the feed of the precipitant may be controlled to maintain the current within a predetermined range.