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:
Nov. 19, 1996
Filed:
Feb. 08, 1995
Hydrometrics, Inc., Helena, MT (US);
Abstract
A method is disclosed for remediating ponds and other water sites containing sludge and other waste materials by a dredging and dewatering process which is economical and efficient, uses relatively low cost equipment and provides for high remediation rates. The preferred process dredges the site to produce a sludge which is screened to remove oversize material. The screened sludge is then thickened and the thickened sludge dredged and fed as a uniform thickened sludge mixture to a filter press to dewater the sludge producing a final sludge product having a high solids content. A coagulant is preferably added to the sludge and a polymer and/or coagulant added to the thickened sludge filter press feed.