公开(公告)号：US11735329B2

公开(公告)日：2023-08-22

申请号：US17070120

申请日：2020-10-14

Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE

Inventor： Sang Eun Bae ,  Hwa Kyeung Jeong ,  Dong Woo Lee ,  Tae Hong Park ,  Jei Won Yeon ,  Kun Ho Chung ,  Sang Ho Lim ,  Jai Il Park ,  Wan Sik Cha ,  Byung Man Kang

IPC: G21F9/12 ,  B01J20/28 ,  B01J20/02

CPC classification number: G21F9/12 ,  B01J20/0225 ,  B01J20/28009 ,  B01J2220/49

Abstract: The present invention relates to a radioactive chemical waste treatment apparatus including an adsorption unit including an radioactive chemical waste adsorption member for adsorbing and separating radioactive chemical wastes from radioactive chemical waste-containing fluid, and a regeneration unit which is in fluidic communication with the adsorption unit and is for regenerating the radioactive chemical waste adsorption member by desorbing the radioactive chemical wastes from the adsorption member with the radioactive chemical wastes adsorbed thereonto, and to a radioactive chemical waste treatment method including (A) adsorbing radioactive chemical wastes onto a radioactive chemical waste adsorption member and separating the radioactive chemical wastes from a radioactive chemical waste-containing fluid, and (B) desorbing the radioactive chemical wastes from the radioactive chemical waste adsorption member with the radioactive chemical wastes adsorbed thereonto, and regenerating the radioactive chemical waste adsorption member.

公开(公告)号：US10933401B2

公开(公告)日：2021-03-02

申请号：US16315075

申请日：2017-07-04

Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE

Inventor： Tae Hong Park ,  Young Jin Cho ,  Sang Eun Bae ,  Sang Ho Lim ,  Jai Il Park ,  Young Sang Youn ,  Jei Won Yeon

IPC: B01J20/28 ,  B01J20/22 ,  C02F1/58 ,  C02F1/28 ,  B01J20/30 ,  B03C1/28 ,  C30B7/10 ,  C30B29/10 ,  B01D35/06 ,  G21F9/12 ,  B01J20/02 ,  C02F101/00

Abstract: The present invention relates to a magnetic cesium adsorbent, a preparation method therefor, and a cesium removal method using the same, the preparation method comprising the steps of: (a) preparing a metal hexacyanoferrate; and (b) hydrothermally reacting the metal hexacyanoferrate so as to prepare a metal hexacyanoferrate having a rhombohedral crystal structure.

公开(公告)号：US11598887B2

公开(公告)日：2023-03-07

申请号：US17209373

申请日：2021-03-23

Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE

Inventor： Sang Eun Bae ,  Jung Hwan Park ,  Jun Hyuck Kim ,  Hwa Kyeung Jeong ,  Byung Man Kang ,  Tae Hong Park ,  Sang Ho Lim ,  Kun Ho Chung

IPC: G01T1/167 ,  G01T7/02 ,  B01J20/02 ,  G01T1/204 ,  G21F9/12

Abstract: The present invention relates to a method for measuring radioactivity of radioactive waste, the method comprising an adsorption step (A) of selectively adsorbing a radioactive substance comprising at least one from among radioactive iodine and radioactive cesium from radioactive waste containing radioactive substances on an adsorption member for adsorbing a radioactive substance, and a measurement step (B) of measuring radioactivity of the radioactive substance.