盐环境中的铀在Fe(OH)_3中的吸附

STUDIES ON SORPTION OF URANIUM ON Fe(OH)_3 IN A SALT ENVIRONMENT

摘要: 采用间歇平衡实验,研究了氯化钠饱和溶液中UO_2~(2+)在Fe(OH)_3中的吸附比(R_s)与V/m的关系。实验结果表明,当UO_2~(2+)起始浓度较低时,铀在Fe(OH)_3的吸附符合Freundlich方程;铀的吸附浓度随吸附剂质量的增加而减少。

Abstract: With batch tests sorption behavior of uranium on Fe(OH)3 in saturated Nad solution is investigated. Experiments show that sorption ratios of uranium decrease with increasing liquid/solid ratios ( V/m ). For low uranium concentration,sorption isotherms are linear in agreement with the empirical Freundlich equation c, = KD·ceqn ,and the concentration of uranium sorbed on Fe(OH)3 decreases with the increasing mass of absorbent.