Cooperation Solidification of Cesium and Strontium

Abstract:

The presence of long-lived radionuclides is a challenge to the management of high level liquid waste (HLLW). Separation of minor acitinides and long-lived fission products from the HLLW by partitioning process has the potential of significantly decreasing the costs of the immobilization and disposal of the radioactive waste by minimizing waste volumes. Several solvent extraction processes have been developed and demonstrated at the Institute of Nuclear and New Energy Technology (INET) for the separation of transuranic elements, ⁹⁰Sr and ¹³⁷Cs. In this work, using modified zeolite molecular sieve as a sorbent carrier, four kinds of solidification were prepared by soakage- absorption- calcination methods. It was found that the sample (HZCS-75) calcinated at 750°C was formed pollucite, a zeolite mineral, which will provide an option to immobilize the radioactive cesium and strontium.

• Periodical: Advanced Materials Research (Volumes 482-484)
• Pages: 58-61
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.482-484.58
• Online since: February 2012
• Authors: Ming Fen Wen, Bo Yu, Min Luo, Jing Chen
• Keywords: Cesium, Cooperation Solidification, Strontium, ZSM

References

[1] Donald I W, Metcalfe B L, Taylor R N J. The immobilization of high level radioactive wastes using ceramics and glasses. Journal of materials science, 1997, 32(22): 5851-5887.

[2] Tripp J L, Garn T G, Boardman R D, et al. Steam reforming solidification of cesium and strontium separation product from advanced aqueous processing of spent nuclear fuel. In, WM'06 Conference. Tucson, AZ, 2006.

DOI: 10.1080/01496390600742914