Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Recent Advances in the Removal of Radioactive Wastes Containing 58Co and 90Sr from Aqueous Solutions Using Adsorption Technology

  • Alagumalai, Krishnapandi (Department of Biological and Environmental Engineering, Semyung University) ;
  • Ha, Jeong Hyub (Department of Integrated Environmental Systems, Pyeongtaek University) ;
  • Choi, Suk Soon (Department of Biological and Environmental Engineering, Semyung University)
  • Received : 2022.07.04
  • Accepted : 2022.07.19
  • Published : 2022.08.10
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Abstract

Nuclear power plant operations for electricity generation, rare-earth mining, nuclear medical research, and nuclear weapons reprocessing considerably increase radioactive waste, necessitating massive efforts to eradicate radioactive waste from aquatic environments. Cobalt (58Co) and strontium (90Sr) radioactive elements have been extensively employed in energy generation, nuclear weapon testing, and the manufacture of healthcare products. The erroneous discharge of these elements as pollutants into the aquatic system, radiation emissions, and long-term disposal is extremely detrimental to humans and aquatic biota. Numerous methods for treating radioactive waste-contaminated water have emerged, among which the adsorption process has been promoted for its efficacy in eliminating radioactive waste from aquatic habitats. The current review discusses the adsorptive removal of radioactive waste from aqueous solutions using low-cost adsorbents, such as graphene oxide, metal-organic frameworks, and inorganic metal oxides, as well as their composites. The chemical modification of adsorbents to increase their removal efficiency is also discussed. Finally, the current state of 58Co and 90Sr removal performances is summarized and the efficiencies of various adsorbents are compared.

Keywords

Acknowledgement

This work was supported by the Industrial Strategic Technology Development Program (20012763, development of petroleum residue-based porous adsorbent for industrial wastewater) funded by the Ministry of Trade, Industry, and Energy (MOTIE, Korea), and by the Green Innovative Company Growth Support Program of the Korean Ministry of Environment.

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