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Passively cooled ion exchange column

An ion exchange column and ion exchange technology, which are applied in the field of passively cooled ion exchange columns, can solve the problems of expensive installation and maintenance, potential safety hazards, and design restrictions imposed on equipment, and achieve the effect of saving costs and simplifying the system.

Active Publication Date: 2018-07-31
P&T GLOBAL SOLUTIONS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Methods 1 and 2 are very expensive to install and maintain because they require redundant systems including backup power for continuous operation
Method 2 creates peak temperatures in the ion exchange media, columns, and / or radiation shields, which presents safety concerns and imposes additional design constraints on the equipment
Method 3 limits the capacity of the ion exchange column because the diameter is directly proportional to the flow through it

Method used

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  • Passively cooled ion exchange column

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Embodiment Construction

[0019] refer to figure 1 , the ion exchange system 10 includes an ion exchange column 12 and a passive cooling system 16 . The ion exchange column 12 includes a housing 13 and an ion exchange medium 14 inside the housing 13 . The ion exchange system 10 can be used to remove or separate contaminants from any liquid waste stream, but is particularly useful for removing radionuclides from liquid radioactive waste streams.

[0020] Ion exchange system 10 is configured to limit the temperature generated by radioactive decay of radionuclides absorbed by ion exchange medium 14 by passively rejecting heat to the ambient environment. This makes ion exchange column 12 inherently safe and economical.

[0021] In general, ion exchange system 10 facilitates the exchange of ions between an electrolyte solution (liquid waste stream) and an ion-containing medium (ion exchange medium 14). As the liquid waste flows through and through the ion exchange medium 14 , ions in the liquid are excha...

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Abstract

An ion exchange system includes an ion exchange column filled with ion exchange media and a passive cooling system. The passive cooling system includes a working fluid that transfers heat away from the ion exchange column. In one embodiment, the working fluid is in a closed system. In another embodiment, the passive cooling system includes a heat pipe. In yet another embodiment, the ion exchange system is used to separate radionuclides, such as Cs-137 from a liquid waste stream.

Description

[0001] Cross references to related patent applications [0002] This application claims priority to U.S. Patent Application No. 14 / 875,485, filed October 5, 2015, and entitled "Passively Cooled Ion Exchange Column," which claims Submitted on August 13, entitled "System and Method for Passively Removing Heat from IonExchange Columns Used to Remove Radionuclides from Liquids" The benefit of US Provisional Patent Application No. 62 / 204,793, all of which are hereby incorporated by reference in their entirety. In case of conflict, subject matter explicitly recited or illustrated herein controls any subject matter incorporated by reference. The incorporated subject matter should not be used to limit or narrow the scope of the subject matter expressly described or depicted. Background technique [0003] Radioactive waste is generated through the operation of nuclear reactors, the processing of used nuclear fuel, the operation of particle accelerators, and other sources. A portion ...

Claims

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Application Information

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IPC IPC(8): G21F9/12C02F1/42
CPCC02F1/42C02F2303/10Y02W10/30G21F9/12C02F2101/006Y02E30/30
Inventor 艾瑞克·史密斯
Owner P&T GLOBAL SOLUTIONS