Removal of radioactive cesium from solutions by zinc ferrocyanide

Removal of radioactive cesium from solutions by zinc ferrocyanide 1 first-author 1 1 2 2 1 2 1 1 corresp Corresponding author. E-mail address: nliu720@scu.edu.cn Corresponding author. E-mail address: nliu720@scu.edu.cn nliu720@scu.edu.cn Key Laboratory of Radiation Physics and Technology of Education Ministry of China, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China Key Laboratory of Radiation Physics and Technology of Education Ministry of China, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China Adsorption of 134 Cs from aqueous solution by zinc ferrocyanide, and the effect of experimental conditions on the adsorption were investigated. Preliminary results showed that zinc ferrocyanide was very efficient as an absorbent. Over 98% of 134 Cs could be removed by zinc ferrocyanide of 0.33 g·L -1 from 134 Cs solution ( C o) of 3.2~160.0 kBq·L -1 , with adsorption capacities ( Q ) of 9.6~463.0 kBq·g -1 . The adsorption equilibrium time was within one hour and the suitable pH ranged 1~10. No significant differences on 134 Cs adsorption were observed at 0~50℃, or in solutions containing Ca 2+ , Fe 3+ , Mg 2+ , HCO 3 - , CO 3 2- , Cl - and SO 4 2- , even though they are 1000 times higher than the anions or cations in groundwater. However, the adsorption rates decreased when solutions contained K + or Na + . The adsorption process could be described by Freundlich and Langmuir adsorption equations. Zinc ferrocyanide 134 Cs Adsorption Radioactive waste References Chen J P . Bioresour Technol , 1997 , 60 : 185 - 189 . Bioresour Technol Zhu Y G ., Smolders E . J Exp Bot , 2000 , 51 : 1635 - 1645 . J Exp Bot Favre R A , Dungy B , Lemaiire M , et al . Solvent Extr Ion Exch , 2001 , 19 : 181 - 191 . Solvent Extr Ion Exch Tindwa R M , Perrotta A J , Jerus P , et al . Mater Res Bull , 1982 , 17 : 873 - 881 . Mater Res Bull Pekarek V , Vesely V . Talanta , 1972 , 19 : 1245 - 1283 . Talanta Gutierrez M , Fuentes H R . J Envir Radio , 1991 , 13 : 271 - 282 . J Envir Radio Kamaluddin , Nath M , Sharma A , et al . Origins Life Evol B , 1994 , 24 : 469 - 477 . Origins Life Evol B Kamaluddin , Nath M , Deopujari S W , et al . Origins Life Evol B , 1990 , 20 : 259 - 268 . Origins Life Evol B Tewari B B , Mohan D , Kamaluddin , et al . Indian J Chem Technol , 1995 , 2 : 113 - 114 . Indian J Chem Technol Loos-Neskovic C , Fedoro M . Solvent Extr Ion Exch , 1989 , 7 : 131 - 158 . Solvent Extr Ion Exch Mihailova O V , Tatarinceva T B , Kazan G. J , et al . Khimicheskaya Tekhnologiya (in Russian) , 2004 , 4 : 6 - 8 . Khimicheskaya Tekhnologiya (in Russian) Tewari B B , Kamaluddin. J Colloid Interface Sci , 1997 , 193 : 167 - 171 . Kamaluddin. J Colloid Interface Sci Tewari B B , Mohan D , Colloids Surf A , 1998 , 131 : 89 - 93 . Colloids Surf A Loewenschuss H . Radioact Waste Manag , 1982 , 2 : 327 - 341 . Radioact Waste Manag Sipos-Galiba I , Lieser K H . Radiochem Radioana Letters , 1980 , 42 : 329 - 339 . Radiochem Radioana Letters Ramaswamy M . Solvent Extr Ion Exch , 1997 , 15 : 1119 - 1131 . Solvent Extr Ion Exch Wang S Z , Jiang C Y . J Nucl Radiochem , 1996 , 18 : 247 - 251 . J Nucl Radiochem 10.1016/S1001-8042(08)60029-9 O614.35,X13 2007-09-17 2008-04-20 2021-01-19 2008 Nuclear Science and Techniques 02 19