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. 08, 1988
Filed:
Apr. 21, 1986
James W Ayres, Las Vegas, NV (US);
Alfred W Western, Las Vegas, NV (US);
Other;
Abstract
A process for treating radioactive contaminated soils to remove radioactive metal oxide contaminants therefrom comprises creating a suspension of particles of the soil in a column of water, alternately forcing fresh water in the column upwardly to force ligher soil particles upwardly in the column and allowing heavier particles to gravitationally settle in the bottom of the water column. The heavy particles comprising radioactive metal oxides are collected and handled for radioactive waste material storage. The aqueous slurry of lighter soil particles is directed to a separator for removing substantial amounts of water after which the particles are directed to a conveyor and spread out to a substantially uniform thickness and detected for any radioactivity. Portions of material in which radioactive particles are detected ar diverted and the uncontaminated soil material is recovered.