Crystalline Silicotitanate: a New Type of Ion Exchanger for Cs Removal from Liquid Waste

Abstract

Abstract: The research and developments of a new type of inorganic ion exchanger, crystalline silicotitanate (CST) are reviewed. This material is stable against radiation, and the CST has high selectivity for Cs over Na, K and Rb. It performs well in acidic, neutral, and basic solutions. The results of ion exchange tests show that CST is an excellent candidate for Cs removal from high-level liquid waste.

Key words: Crystalline silicotitanate, Cesium, High-level liquid waste

Bo YU, Jing CHEN, Chongli SONG. Crystalline Silicotitanate: a New Type of Ion Exchanger for Cs Removal from Liquid Waste[J]. J Mater Sci Technol, 2002, 18(03): 206-210.

References

[1] D.D.Lee, J.F.Walker and P.A.Taylor: Environmental Progress, 1997, 16(4), 251.
[2] K.W.Carley-Macauly: Advanced Management Methode for Medium Active Liquid Waste Harwood Academic Publishers, Brussels, Luxembourg, 1981.
[3] J.E.Miller and N.E.Brown: Development and Properties of Crystalline Silicotitanate (CST) Ion Exchangers for Radioactive Waste Applications, SAND97-0771, 1997.
[4] G.N.Brown, L.A.Bray, C.D.Carlson, K.J.Carson, J.R.DesChane, R.J.Elovich, F.V.Hoopes, D.E.Kurath, L.L.Nenninger and P.K.Tanaka: Comparison of Organic and Inorganic Ion Exchangers for Removal of Cesium and Strontium from Simulated and Actual Hanford 241-AW-101 DSSF Tank Waste, PNNL-11120, 1996.
[5] J.S.Buckingham: Laboratory Evaluation of Zeolite Material for Removing Radioactive Cs from Alkaline Waste Solution, 2nd International Conference on Zeolites, Worchester, Massachusetts,1970.
[6] S.P.Xu, C.L.Song and C.Y.Jiang: Tsinghua Science and Technology, 1996, 1(1), 77.
[7] J.F.Dozol, N.Simon, V.Lamare, H.Rouquette, S.Eymard, B.Tournois and D.D.Mare: Sep. Sci. Technol., 1999, 34(6&7), 877.
[8] R.G.Anthony and R.G.Dosch: U.S. Patent, No. 5,177,045. January 5, 1993.
[9] R.G.Anthony, R.G.Dosch and C.V.Philip: Waste Management, 1993, (13), 503.
[10] Z.X.Zheng, D.Gu and R.G.Anthony: Ind. Eng. Chem. Res., 1995, 34, 2124.
[11] M.E.Huckman, I.M.Latheef and R.G.Anthony: Separation Science and Technology, 1999, 34(6&7), 1145.
[12] R.G.Dosch, E.A.Klavetterr and H.P.Stephens: Crystalline Silicotitanates-New Ion Exchanger for Selective Removal of Cesium and Strontium From Radwastes, SAND96-1929, Unlimited Release Printed August 1996, Distribution Category
UC-721.
[13] Cesium Removal Using Crystalline Silicotitanate, Innovative Technology Summary Report, Report Number ORNL/CP-97440, 1997.
[14] D.J.McCabe, B.A.Reynolds and T.A.Todd: Cross Flow filtration of Aqueous Radioactive Tank Wastes, WSRC-MS-96-0524, 1996.
[15] Engineering Evaluation of Solids/Liquids Separation Processes Applicable to Sludge Treatment Project, HNF-3117 Rev.O, Engineering Data Transmittal, Aug 25, 1998.
[16] D.Gu and R.G.Anthony: Topical Report on TAM-5, A Hydrous Crystalline Silicotitanate for Removal of Cesium from Dilute Aqueous Waste,Period: January 1, 1993-December 31, 1994, March 30,1995.
[17] Status Report: Sandia National Laboratories, UOP, and Texas A&M University. Summary Data Report on Crystalline Silicotitanate (CST) Material, 1995.
[18] M.E.Huckman, I.M.Latheef and R.G.Anthony: Sep. Sci. Technol., 1999, 34(6&7), 1145.
[19] S.F.DeMuth: Cost Benefit Analysis for Separation of Cesium from Liquid Radioactive Waste by Crystalline Silico-titanate Ion Exchange Resin, LA-UR-96-966, Los Alamos National Laboratory, March 1996.
[20] E.A.Klavetter, N.E.Brown, D.E.Trudel, R.G.Anthony, D.Gu and C.Thibaud: Waste Management 94, February 27-March 3, Tucson, 1994, 709.
[21] R.G.Dosch, N.E.Brown, H.P.Stephens and C.V.Philip: Waste Management 93, February 28 March 3, Tucson, 1993, 1751.
[22] T.M.Nenoff, J.L.Krumhansl and S.G.Thoma: Structure and Characterization of TAM5: A Silicotitanate Molecular Sieve for Radwaste Cleanup, Sandia report in preparation, 1995.
[23] Z.Z.Wen, F.Michael and J.L.Wang: Am. Chem. Soc., 1996, 118, 9164.
[24] A.B.Elizabeth, S.Paul and A.Clearfield: Environ. Sci. Technol., 1998, 32, 101.
[25] Z.Zheng, C.V.Philip and R.G.Anthony: Ind. Eng. Chem. Res., 1996, 35, 4246.
[26] G.N.Brown, S.R.Adami, L.A.Bray, S.A.Bryan, C.D.Carlson, K.J.Carson, J.R.DesChane, R.J.Elovich, S.J.Forbes, J.A.Franz, J.C.Linehan, W.J.Shaw, P.K.Tanaka and M.R.Telander: Chemical and Radiation Stability of SuperLig 644, Resorcinol-Formaldehyde, and Cs-100 Cesium Ion Exchange Materials, PNL-10772. 1995.
[27] L.A.Bray, J.E.Amonette, G.N.Brown, T.M.Kafka and S.F.Yates: Efficient Separations and Processing Crosscutting Program: Develop and Test Sorbents, PNL-10750. 1995
[28] Z.Zheng, R.G.Anthony and J.E.Miller: Ind. Eng. Chem. Res., 1997, 36, 2427.
[29] Z.Zheng: Ph.D. Thesis, Texas A&M University, 1996.
[30] D.Gu, L.Nguyen, C.V.Philip, M.E.Huckman and R.G.Anthony: Ind. Eng. Chem. Res., 1997, 36, 5377.
[31] D.D.Lee, J.F.Walker and P.A.Taylor: Cesium-Removal Flow Studies using Ion Exchange, Winter, 1997, 16(4), 251.
[32] I.M.Latheef, M.E.Huckman and R.G.Anthony: Ind. Eng. Chem. Res., 2000, 39, 1356.
[33] I.M.Latheef: M.S. Thesis, Texas A&M University, College Station, 1999.