Ion Exchange Behavior of $^{137}Cs,\;^{60}Co$ on Diphosil, a new ion exchange resin

Diphosil 이온교환수지에 의한 $^{137}Cs,\;^{60}Co$의 이온교환 거동

  • Kim, Su-Jeong (Nuclear Environment Technology Institute Korea Hydro & Nuclear Power Co. Ltd.) ;
  • Lee, Sang-Jin (Nuclear Environment Technology Institute Korea Hydro & Nuclear Power Co. Ltd.) ;
  • Yang, Ho-Yeon (Nuclear Environment Technology Institute Korea Hydro & Nuclear Power Co. Ltd.) ;
  • Shin, Sang-Woon (Nuclear Environment Technology Institute Korea Hydro & Nuclear Power Co. Ltd.)
  • 김수정 (한국수력원자력(주) 원자력환경기술원) ;
  • 이상진 (한국수력원자력(주) 원자력환경기술원) ;
  • 양호연 (한국수력원자력(주) 원자력환경기술원) ;
  • 신상운 (한국수력원자력(주) 원자력환경기술원)
  • Published : 2004.03.30

Abstract

Diphosil, a new version of the organic-inorganic composite resin developed by ANL has a structure of the chelating diphosphonic acid groups grafted to a silica support. To apply Diphosil for the treatment of liquid radioactive waste from nuclear power plants, the adsorption equilibrium and column experiments were carried out for the main radionuclides, $^{137}Cs\;and\;^{60}Co$, in the liquid radwaste stream. Through the adsorption equilibrium experiments, the removal efficiencies of $^{137}Cs\;and\;^{60}Co$, and the effects of non-radioactive ions on the removal efficiency have been measured in various conditions using radiotracers. The breakthrough curves for the tested tracers were obtained from the laboratory scale column tests using the simulated liquid radioactive waste. In addition, the removal capacity of Diphosil is compared with that of Amberlite IRN 77 resin, generally used in nuclear power plants.

ANL에서 개발한 유 무기 복합의 신이온교환수지인 Diphosil은 silica 물질에 diphosphonic acid 그룹을 결합시킨 구조를 가지고 있다. Diphosil을 원전 운영 중 발생되는 방사성폐액 처리에 적용하기 위해 주대상 핵종인 $^{137}Cs,\;^{60}Co$을 사용하여 흡착 평형과 컬럼 실험을 수행하였다. 흡착 평형 실험을 통하여 $^{137}Cs$$^{60}Co$의 제거율과 그 제거율에 미치는 다양한 조건에서 비방사성 이온의 영향을 조사하였다. 대상 핵종에 대한 파과곡선은 모의 방사성 폐액을 이용한 실험실 수준의 컬럼 실험을 통해 구하였고, Diphosil의 제거능력을 현재 원전에서 쓰이고 있는 Amberlite IRN 77 수지와 비교하였다.

Keywords

References

  1. Moghissi, Radioactive waste technology, ASME, 223-274(1986)
  2. IAEA, Treatment of low and intermediate-level liquid radioactive wastes, Technical report series No. 236, 91-113(1984)
  3. EPRI, Radwaste generation survey update, EPRI/NP-5526, Vol. 2(1988)
  4. Analytical resources, INC., and United mineral & energy, INC., Operational experience with selective Ion-exchange media in sluiceable pressurized demineralizers at nuclear power plants, DOE/IP/12640-T188 088554
  5. 박종길, 액체 폐기물 증발기와 이온교환 수지탑의 경제적 운전, 3/4 전력기술 workshop(방사선 안전관리)(1988)
  6. N. P. Jacob, Operation of radwaste ion-exchange processing at nuclear power plants, Waste Management, Vol. 2, 409(1984)
  7. N. P. Jacob, Improved PWR liquid waste processing using zeolite and organic resins, EPRI-5991(1988)
  8. Electric Power Research Institute, Pretreatment and Selective Materails for Improved Prosessing of PWR Liquid Radioactive Wastes, EPRI NP-5786(1988)
  9. Analytical Resources, Inc. and United Mineral & Energy, INc., Operational Experience with Selective Ion-Exchange Media in Sluiceable Pressurized Demineralizers at Nuclear Power Plants, DOE/ID/12640-TI88 008554
  10. A. Bilau and F. Ruter, Liquid radwaste processing history at Fort Calhoun Nuclear Station, Waste Management, Vol. 2(1986)
  11. E. Philip Horwitz, A new ion exchange resin for the treatment of industrial waste streams, contaminated groundwaters, and mixed-wastes, Chemical separations Science(1995)
  12. David G. Peiffer and Lawrence E. Jassin, 'Northeast utilities, Millstone station's experience with Eichrom industies' $Diphonix^{TM}$ selective ion-exchange resin in liquid radioactive waste processing', radioactivity and radiochemistry, vol. 6. No.3(1995)
  13. R. Chiarizia, E.P. Horwitz and K. A. D Arcy, Uptake of metal ions by a new chelating ion exchange resin, solvent extr. Ion. Exch., 14, 6(1996)
  14. U. S. EPA. Intergrated Risk Information Systems(IRIS) on Uranium, soluble salts, environmental criteria and assessment office, office of health and environmental assessment, office of research and development, Cincinnati, OH.
  15. Friedrich Helfferich, Ion exchange, McGraw-Hill Book Company, 162-166 (1962)
  16. C. A. Christophi and L. Axe, Competiton of Cd, Cu and Pb adsorption on goethite, J. Environ. Eng., 126, 66-74(2000)