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. 08, 1991
Filed:
Aug. 29, 1989
John D Bogart, Mt. Juliet, TN (US);
Other;
Abstract
A mobile soil and sludge treatment apparatus and a method of treating soil and sludge useful in a soil washing process or a biological decontamination of soils and/or sludges. In one embodiment of the invention, a plurality of tanks are mounted on a vehicular trailer for over-the-road movement and each tank includes aerator/mixers and a plurality of peripherally arranged air jets with the mixing, aeration and air jets combining to prevent settling of the solids in the slurry during the decontamination process. In a second embodiment of the invention, a single large tank is mounted on a vehicular trailer with the tank including aerator/mixers and a slurry pump for recirculating the slurry throughout the tank with the recirculating pipes terminating in jet nozzles or eductors which enhance mixing and solids suspension. In a third embodiment, the aeration/mixing is obtained by a plurality of downwardly directed air jet nozzles adjacent the bottom of the tank. The apparatus and method efficiently maintain the suspension of solids in a slurry environment for enhancing solubilizing of contaminants from the solids and producing decontaminated soils.