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:
Jul. 21, 1987
Filed:
Oct. 15, 1985
Carlton E Robertson, Wilmington, NC (US);
Carolina Power & Light Company, Raleigh, NC (US);
Abstract
A method of decontaminating mixtures of radioactively contaminated water and radioactively contaminated water-immiscible organic liquids to produce a decontaminated organic liquid which can be disposed of in a conventional manner. The method comprises separating a mixture of radioactively contaminated water and a radioactively contaminated water-immiscible organic liquid into a waste water fraction carrying metal radionuclides and an organic liquid fraction carrying metal radionuclides; decontaminating the waste water fraction; mixing the radioactively contaminated organic liquid fraction with a sufficient amount of an aqueous solution of a water-soluble chelating agent in a manner and for a time period sufficient for water-soluble metal-chelate complexes to form between the chelating agent and substantially all of the metal radionuclides carried by the organic liquid fraction; separating the aqueous solution from the organic liquid fraction thereby removing the water-soluble metal-chelate complexes containing substantially all of the radionuclides from the organic liquid fraction, making the organic liquid safely disposable by conventional methods; and decontaminating the aqueous solution.