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Goo JY, Choi S, Kim BJ, Jeong J, Kwon JS, Jo HY. Effects of EDTA on the leaching behaviors of Cs(I) and Co(II) from cement waste forms. JOURNAL OF HAZARDOUS MATERIALS 2024; 463:132830. [PMID: 37944230 DOI: 10.1016/j.jhazmat.2023.132830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 10/09/2023] [Accepted: 10/20/2023] [Indexed: 11/12/2023]
Abstract
Cementation is extensively employed for immobilizing radionuclides in low- and intermediate-level radioactive wastes generated during the decommissioning of nuclear power plants. Ethylenediaminetetraacetic acid (EDTA), used as a decontamination agent during the decommissioning process, can be introduced into the cement waste form containing radionuclides. This study investigated the effects of the EDTA present in simulated radioactive decommissioning wastes on the leaching behaviors of Co and Cs immobilized in the cement waste form. Co leaching was facilitated by the formation of highly mobile Co-EDTA complexes. However, Cs leaching was impeded by the competition for leaching with other metal-EDTA complexes. Moreover, the EDTA-induced carbonated layer with a dense pore structure played a crucial role as a retardation barrier for the Cs leaching. The calcite contents of the samples with 8 wt% EDTA were approximately three times higher than those of the samples without EDTA. The introduced EDTA affected the leaching behaviors of both Co and Cs, as well as the microstructure evolution of the cement waste form. Nevertheless, the addition of EDTA had a relatively low positive effect on the efficiency of Cs immobilization, but also an obvious negative effect on the efficiency of Co immobilization, regardless of the concentration of EDTA. Finally, an EDTA dosage of 1 wt% in the cement waste forms containing Co or Cs is suggested as a potential waste acceptance criterion for solidified low- and intermediate-level radioactive waste.
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Affiliation(s)
- Ja-Young Goo
- Korea Atomic Energy Research Institute, 989, Daedeok-daero, Yuseong-gu, Daejeon 34057, Republic of Korea; Department of Earth and Environmental Sciences, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Seonggyu Choi
- Korea Atomic Energy Research Institute, 989, Daedeok-daero, Yuseong-gu, Daejeon 34057, Republic of Korea
| | - Bong-Ju Kim
- Korea Atomic Energy Research Institute, 989, Daedeok-daero, Yuseong-gu, Daejeon 34057, Republic of Korea
| | - Jongtae Jeong
- Korea Atomic Energy Research Institute, 989, Daedeok-daero, Yuseong-gu, Daejeon 34057, Republic of Korea
| | - Jang-Soon Kwon
- Korea Atomic Energy Research Institute, 989, Daedeok-daero, Yuseong-gu, Daejeon 34057, Republic of Korea.
| | - Ho Young Jo
- Department of Earth and Environmental Sciences, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea.
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Zhou W, Wang J, He J, Yang X, Shi Y, Wang X, Liu C. Adsorption of U(VI) on montmorillonite in the presence of ethylenediaminetetraacetic acid. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123929] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Olatunji MA, Khandaker MU, Mahmud HNME, Amin YM. Influence of adsorption parameters on cesium uptake from aqueous solutions- a brief review. RSC Adv 2015. [DOI: 10.1039/c5ra10598f] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Due to rapid population growth, technological advancement and industrial revolution, the rate of generated waste effluents has become a grave concern.
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Affiliation(s)
| | - Mayeen Uddin Khandaker
- Applied Radiation Laboratory
- Department of Physics
- University of Malaya
- 50603 Kuala Lumpur, Malaysia
| | | | - Yusoff Mohd Amin
- Applied Radiation Laboratory
- Department of Physics
- University of Malaya
- 50603 Kuala Lumpur, Malaysia
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Kimura K, Hachinohe M, Klasson KT, Hamamatsu S, Hagiwara S, Todoriki S, Kawamoto S. Removal of Radioactive Cesium (134Cs plus 137Cs) from Low-Level Contaminated Water by Charcoal and Broiler Litter Biochar. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2014. [DOI: 10.3136/fstr.20.1183] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Keitarou Kimura
- National Food Research Institute -National Agriculture and Food Research Organization (NARO)
| | - Mayumi Hachinohe
- National Food Research Institute -National Agriculture and Food Research Organization (NARO)
| | | | - Shioka Hamamatsu
- National Food Research Institute -National Agriculture and Food Research Organization (NARO)
| | - Shoji Hagiwara
- National Food Research Institute -National Agriculture and Food Research Organization (NARO)
| | - Setsuko Todoriki
- National Food Research Institute -National Agriculture and Food Research Organization (NARO)
| | - Shinichi Kawamoto
- National Food Research Institute -National Agriculture and Food Research Organization (NARO)
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Remobilization of 60Co, 85Sr, 137Cs, 152Eu, and 241Am from a Contaminated Soil Column by Groundwater and Organic Ligands. Transp Porous Media 2012. [DOI: 10.1007/s11242-012-9983-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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