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.

Date of Patent:
Nov. 09, 1993

Filed:

Mar. 20, 1992
Applicant:
Inventors:

Mark Girovich, Baltimore, MD (US);

Jerome F Dausman, Brookeville, MD (US);

Assignee:

Bio Gro Systems, Inc., Annapolis, MD (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
210770 ; 210751 ; 210768 ; 210764 ; 210774 ; 2101951 ; 210181 ;
Abstract

A process for the production of a durable granular or pelletized sludge product is disclosed whereby a minimal amount of high calcium oxide material is utilized for pathogenic stabilization, the resulting material being further processed through an agglomeration stage. A portion of the agglomerated material is further processed in a moisture reduction or drying stage and recycled back to the agglomeration stage for percent solids adjustment and promotion of agglomeration. An apparatus for performing the process is also disclosed.


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Girovich, Mark. (1993). Method and apparatus for the treatment of sewage sludge and the like (U.S. Patent No. 5259977). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5259977

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