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:
Apr. 08, 1997
Filed:
Jun. 11, 1996
Paul G Christy, Wayne, PA (US);
RDP Company, Norristown, PA (US);
Abstract
A process and apparatus for treating sewage sludge having the steps of providing sludge at a desired rate, mixing the sludge with at least one alkaline additive at a proportionate rate to the sludge to raise the pH of the mixture to at least a desired level, providing a pasteurization chamber having a means to heat the contents of the chamber, continuously delivering the sludge and alkaline additive mixture to the inlet opening of the pasteurization chamber, heating the pasteurization chamber to maintain a minimum temperature of the sludge and alkaline additive mixture in the pasteurization chamber, continuously conveying the sludge and alkaline additive mixture without any substantial agitation of the mixture for a desired duration through the pasteurization chamber such that the thixotropic mixture does not become watery, and continuously discharging the sludge and alkaline additive mixture from the discharge opening of the pasteurization chamber, whereby harmful pathogens are destroyed in the sludge.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile