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. 06, 1991
Filed:
Dec. 28, 1989
Applicant:
Inventor:
Walti Schmitt, Bad Schwalbach, DE;
Assignee:
Passavant-Werke AG, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210709 ; 210745 ; 210 961 ; 73 641 ; 356394 ;
Abstract
During conditioning of a suspension to be dewatered through incorporation of flocculant, the optimum dewaterability depends on the amount of added flocculant and on the mixing energy expended. According to the invention, the sludge flocs present or formed in the suspension after incorporation of the flocculant are determined metrologically, and the amount of flocculant and/or the mixing energy expended and/or the location of flocculant addition is controlled as a function of the floc number, size and/or structure.