Modeling the leaching behavior of simulated HLW-glass using PHREEQC

Modeling the leaching behavior of simulated HLW-glass using PHREEQC 1 corresp first-author Corresponding author. E-mail: nzhangh@yahoo.com.cn Corresponding author. E-mail: nzhangh@yahoo.com.cn nzhangh@yahoo.com.cn 1 China Institute of Atomic Energy, Beijing 102413, China China Institute of Atomic Energy, Beijing 102413, China PHREEQC is a geochemical model to study aqueous ion reaction equilibrium in water systems. In this paper, PHREEQC was used to calculate concentrations of main elements (Si, Na, B, Al, Sr, Cs, Fe and Nd) leached from simulated HLW-glass in solution. The experiments were preformed in deionized-water or simulated underground water at 90℃ or 150℃ under low oxygen atmosphere. The calculated results agreed well with the experimental results. PHREEQC program Aqueous ion Reaction equilibrium Simulated HLW glass References Parkhurst D L , Appelo C A J . User’s guide to PHREEQC (version2)-A computer program for speciation, batch-reaction, one-dimensional transport, and inverse geochemical calculations: U.S. Geological Survey Water-Resources Investigation Report 99-4259 , 1999 . User’s guide to PHREEQC (version2)-A computer program for speciation, batch-reaction, one-dimensional transport, and inverse geochemical calculations: U.S. Geological Survey Water-Resources Investigation Report 99-4259 Parkurst D L , Thorstenson D C , Plummer L N . PHREEQE—A computer program for geochemical calculations: U.S. Geological Survey Water-Resources Investigations Report 80-96 , 195 , 1980 . PHREEQE—A computer program for geochemical calculations: U.S. Geological Survey Water-Resources Investigations Report 80-96 Wolery T J . (UCRL-MA-110662 PT I), EQ3/6, A software package for geochemical modeling of aqueous systems: Package overview and installation guide (Version 7.0) September 14, 1992 . Curti E . Modelling the dissolution of silicate glasses for radioactive waste disposal with the PHREEQE/GLASSOL code: Theory and practice, PSI-Bericht Nr.86 ( 1991 ). Modelling the dissolution of silicate glasses for radioactive waste disposal with the PHREEQE/GLASSOL code: Theory and practice, PSI-Bericht Nr.86 Lolivier Ph , Lemmens K , Van Iseghem P . in Scientific basis for nuclear waste management XXI , edited by McKinley I G , McCombie C . Mat Res Soc Symp Proc , Vol. 506 , Warrendale, PA , 1998 : 399 - 406 . Scientific basis for nuclear waste management XXI Van Iseghem P , Lemmens K , Aertsens M , et al . Interaction between HLW glass and clay: Experiments versus model , Proceedings of Geoval’94 , edited by OECD , Paris , 1995 : 203 - 217 . Interaction between HLW glass and clay: Experiments versus model Standard test method for static leaching of monolithic waste forms for disposal of radioactive waste, ASTM Designation: C 1220-98 . Standard test method for static leaching of monolithic waste forms for disposal of radioactive waste, ASTM Designation: C 1220-98 Zhang Hua . Study on leaching behavior and model of HLW-glass under repository conditions, PhD. Thesis , China Institute of Atomic Energy , July 2004 . Study on leaching behavior and model of HLW-glass under repository conditions, PhD. Thesis 10.1016/S1001-8042(07)60037-2 TL941+.113 2006-11-14 2007-06-20 2021-01-19 2007 Nuclear Science and Techniques 03 18