Korea Atomic Energy Research Institute

Korea Hydro Nuclear Power Co., Ltd.

Hee-Chul Eun

Hee-Chul Yang

Yung-Zun Cho

In-Tae Kim

Geun-Il Park

Hwan Seo Park

Jung Hoon Choi

Han-Soo Lee

Hwan-Seo Park

JunHong Kim

Tae-Kyo Lee

There are provided an apparatus and method for separating radioactive nuclides from a waste salt and recovering a refined salt, which are able to maximize process efficiency and operating efficiency of a process of regenerating a waste salt produced during a pyrochemical process of used nuclear fuel by converting the waste salt into a thermally stable form and distilling the waste salt under a reduced pressure using a single apparatus having two top covers which are mountable to replace radioactive nuclides included in the waste salt, and highly improve applicability and utility in a remote operation facility for disposal of a radioactive waste by further simplifying operation/handling compared with conventional processes.

Apparatus and method for separating radioactive nuclides and recovering refined salt from LiCl waste salt or LiCl-KCI eutectic waste salt

A reuse apparatus of eutectic salt waste produced in an electro refining process and a method thereof is a technology that in order to collect the eutectic salt of the eutectic salt waste, oxidizes/precipitates nuclides (rare earth and TRU) within the eutectic salt waste, an oxygen dispersing method is used to perform a layer separation into the eutectic salt layer and the precipitate layer. Then, the precipitate layer and eutectic salt layer are separated and collected, so that the eutectic salt layer is directly reused and the eutectic salt within the precipitates is reused by separating and collecting it using distillation/condensation processes. The reuse apparatus of the eutectic salt waste and a method thereof thereby increases the collecting efficiency of the eutectic salt and allows the compositions of the collected eutectic salt to have the same compositions as the eutectic salt used in the electro refining process.

Reuse method of radioactive waste salt and the apparatus thereof

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Daejeon, South Korea

Hee-Chul Eun