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Korean Carbon Society (한국탄소학회)
권호 표지

Electrosorption of Uranium Ions in Liquid Waste

  • Lee, Hye-Young (Inorganic Material Laboratory, Dept. of Chemical Engineering, Yonsei University) ;
  • Jung, Chong-Hun (Korea Atomic Energy Research Institute) ;
  • Oh, Won-Zin (Korea Atomic Energy Research Institute) ;
  • Park, Jin-Ho (Korea Atomic Energy Research Institute) ;
  • Shul, Yong-Gun (Inorganic Material Laboratory, Dept. of Chemical Engineering, Yonsei University)
  • Received : 2003.06.11
  • Accepted : 2003.06.18
  • Published : 2003.06.30
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Abstract

A study on the electrosorption of uranium ions onto a porous activated carbon fiber (ACF) was performed to treat uraniumcontaining lagoon sludge. The result of the continuous flow-through cell electrosorption experiments showed that the applied negative potential increased the adsorption kinetics and capacity in comparison to the open-circuit potential (OCP) adsorption for uranium ions. Effective U(VI) removal is accomplished when a negative potential is applied to the activated carbon fiber (ACF) electrode. For a feed concentration of 100 mg/L, the concentration of U(VI) in the cell effluent is reduced to less than 1 mg/L. The selective removal of uranium ions from electrolyte was possible by the electrosorption process.

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