화학공학소재연구정보센터
Korean Journal of Chemical Engineering, Vol.34, No.9, 2390-2396, September, 2017
De-chlorination and solidification of radioactive LiCl waste salt by using SiO2-Al2O3-P2O5 (SAP) inorganic composite including B2O3 component
E-mail:
SAP (SiO2-Al2O3-P2O5) composite has been recently studied in KAERI to deal with the immobilization of radioactive salt waste, one of the most problematic wastes in the pyro-chemical process. Highly unstable salt waste was successfully converted into stable compounds by the dechlorination process with SAPs, and then a durable waste form with a high waste loading was produced when adding glassy materials to dechlorination product. In the present study, U-SAP composite which is SAP bearing glassy component (Boron) was synthesized to remove the adding and mixing steps of glassy materials for a monolithic wasteform. With U-SAPs prepared by a sol-gel process, a series of wasteforms were fabricated to identify a proper reaction condition. Physical and chemical properties of dechlorination products and U-SAP wasteforms were characterized by XRD, DSC, SEM, TGA and PCT-A. A U-SAP wasteform showed suitable properties as a radioactive wasteform such as dense surface morphology, high waste loading, and high durability at the optimized U-SAP/salt ratio 2.
  1. Choi JH, Eun HC, Park HS, Ahn DH, JNFCWT, 13, 76 (2015)
  2. Eun HC, Choi JH, Lee TK, Cho IH, Kim NY, Yu JU, Park HS, Ahn DH, JNFCWT, 13, 181 (2015)
  3. Choi JH, Eun HC, Lee KR, Cho IH, Lee TK, Park HS, Ahn DH, J. Non-Cryst. Solids, 434, 79 (2016)
  4. Lee HS, Oh GH, Lee YS, Kim IT, Lee JH, J. Nucl. Sci. Technol., 46, 392 (2009)
  5. Harrison MT, Simms HE, Jackson A, Lewis RG, Radiochin. Acta, 96, 295 (2008)
  6. Lewis MA, Fischer DF, Smith LJ, J. Am. Ceram. Soc., 79, 2826 (1993)
  7. Luo JS, Zyryanov VN, Ebert WL, American Ceramic Society, Westerville, OH, U.S.A., 477 (2001).
  8. Frank SM, Barber TL, DiSanto T, Goff KM, Johnson SB, Jue JF, Noy M, O’Holleran TP, Sinkler W, Materials Research Society, Warrendale, PA, U.S.A., 487 (2002).
  9. Meltcalfe BL, Donald IW, J. Non-Cryst. Mater., 348, 225 (2004)
  10. Leturcq G, Grandjean A, Rigaud D, Perouty P, Charlot M, J. Nucl. Mater., 347, 1 (2005)
  11. Bekaert E, Montagne L, Palavit G, Delevoye L, Kunegel A, Wattiaux A, J. Non-Cryst. Solids, 352, 4112 (2006)
  12. Park HS, Kim IT, Kim HY, Ryu SK, Kim JH, Envrion. Sci. Technol., 41, 1345 (2007)
  13. Park HS, Kim IT, Cho YJ, Eun HC, Kim JH, Envrion. Sci. Technol., 41, 7536 (2007)
  14. Park HS, Kim IT, Cho YZ, Eun HC, Lee HS, Envrion. Sci. Technol., 42, 9357 (2008)
  15. Park HS, Cho IH, Eun HC, Kim IT, Cho YZ, Lee HS, Environ. Sci. Technol., 45, 1932 (2011)
  16. Cho IH, Park HS, Ahn SN, Kim IT, Cho YZ, J. Kor. Rad. Waste Soc., 10(1), 45 (2012)
  17. Ahn SN, Park HS, Cho IH, Kim IT, Cho YZ, J. Kor. Rad. Waste Soc., 10(1), 27 (2012)
  18. Standard test methods for determining chemical durability of nuclear, hazardous, and mixed waste glasses and multiphase glass ceramics: The Product Consistency Test (PCT), C 1285-02, ASTM international, West Conshohocken, PA (2008).
  19. Riley BJ, Crum JV, Matyas J, McCloy JS, Lepry WC, J. Am. Ceram. Soc., 95(10), 3115 (2012)
  20. Riley BJ, Rieck BT, McCloy JS, Crum JV, Sundaram SK, Vienna JD, J. Nucl. Mater., 424, 29 (2012)
  21. Vance ER, Davis J, Olufson K, Chiroi I, Karatchevtseva I, Farnan I, J. Nucl. Mater., 420, 396 (2012)
  22. Pires R, Abrahms I, Nunes TG, Hawkes GE, J. Non-Cryst. Solids, 337, 1 (2004)
  23. Dhara A, Mishra RK, Shukla R, Valsala TP, Sudarsan V, Tyagi AK, Kaushik CP, J. Non-Cryst. Solids, 447, 283 (2016)
  24. McCloy J, Washton N, Gassmand P, Marcial J, Weaver J, Kukkadapu R, J. Non-Cryst. Solids, 409, 149 (2015)
  25. Jantzen CM, Bibler NE, Beam DC, Crawford CL, Pickett MA,...WSRC-TR-92-346. Savannah River Site, Aiken, SC (1993).
  26. Ebert WL, Wolf SF, Round-Robin Testing of a Reference Glass for Low-Activity Waste Forms, ANL-99-22, Argonne National Laboratory, Argonne, Illinois (1999).
  27. Lee WE, Ojovan MI, Stennett MC, Hyatt NC, Adv. Appl. Ceram., 105, 1 (2006)