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Nuclear waste separator
   
Document Number
US Patent 6235250
Issued Date
May 22, 2001
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Abstract
A method and system for separating radioactive waste containing volatiles, into light ions and heavy ions, includes a loader/transporter for transferring the waste into a high vacuum environment in the chamber of a plasma processor. During this transfer, gases of the volatiles are released from the waste, collected in a holding tank, and subsequently ionized in the chamber. As the volatiles are ionized, the ions are directed by a magnetic field into contact with the waste to vaporize the waste. The waste vapors are then ionized in the plasma processor chamber to create a multi-species plasma which includes electrons, light ions and heavy ions. Within the chamber, the density of the multi-species plasma is established to be above its collision density in order to establish a substantially uniform velocity for all ions in the plasma. A nozzle accelerates the multi-species plasma to generate a fluid stream which is directed from the chamber toward an inertial separator. A magnetic field in the inertial separator effectively blocks electrons in the stream from entering the separator. On the other hand, the inertia of the various ions in the stream carry them into the separator where they are segregated into light ions and heavy ions according to their atomic weights. After segregation, the heavy ions are vitrified for subsequent disposal.
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Nuclear waste separator - US Patent 6235250 Drawing
Drawing from US Patent 6235250
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Number of Claims:
15
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Published
May 22, 2001
Application Number
09/409,311
Filed
September 29, 1999
US Classification
422/186  
Int'l Classification
G21F   9/30   (20060101)   G21F   9/06   (20060101)  
Examiner
Attorney/Law Firm
Parent Case
CROSS REFERENCE TO RELATED PATENT APPLICATION AND U.S. PATENT This application is a continuation of application Ser. No. 09/275,699, filed Mar. 24, 1999, now U.S. Pat. No. 6,203,669. Application Ser. No. 09/275,699, is a divisional of Application Ser. No. 08/970,548 filed Nov. 14, 1997 now U.S. Pat. No. 5,939,029, issued on Aug. 17, 1999. The contents of application Ser. No. 09/275,699, and U.S. Pat. No. 5,939,029, are incorporated herein by reference.
USPTO Field of Search
422/186   204/156  
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