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:
Oct. 19, 2004
Filed:
Jul. 25, 2002
Applicant:
Inventors:
Christopher Bruce Lind, Flanders, NJ (US);
Raymond T. Pettyjohn, Sommerville, GA (US);
Assignee:
General Chemical Corporation, Parsippany, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/56 ;
U.S. Cl.
CPC ...
C02F 1/56 ;
Abstract
Process muds are de-watered by the addition of high clay alumina. The clay is mixed with plant sludges or muds so as to cause flocculation of the solid particles, and separating the water from the solid materials, as by filtration. Various polymers and/or alum process residues can be added as well. In addition to de-watering plant sludges, this method also reduces color, and reduces the total organic carbon as well as heavy metals, from the filtered water. This permits disposal of the water to public waterways with no additional treatment.