Sorption and desorption of radiostrontium on powdered bentonite: Effect of pH and fulvic acid

被引：23
|
作者：
Wang, XK [1 ]
Chen, YX [1 ]
Wu, YC [1 ]
机构：
[1] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2004年 / 261卷 / 03期
关键词：
D O I：
10.1023/B:JRNC.0000037088.34650.0e
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The effect of pH and fulvic acid on the sorption of Sr on bentonite was investigated by using batch experiments. The sorption and desorption isotherms of Sr on bentonite were determined at room temperature, at pH 6.0+/-0.2 and in presence of 0.1M NaCl. It was found that the sorption of Sr is independent at pH<8, and then increases slightly with increasing PH. Fulvic acid increases the sorption of Sr significantly on bentonite at low PH, but decreases the sorption of Sr at pH>8. The sorption of Sr on bentonite can be described by a reversible sorption process and the sorption mechanism consists mainly of ion exchange.
引用
收藏
页码：497 / 500
页数：4
相关论文
共 50 条
  • [31] Effect of pH,fulvic acid and temperature on the sorption of uranyl on ZrP2O7
    QIAN LiJuan
    Science China(Chemistry), 2010, (06) : 1429 - 1437
  • [32] Complexation and sorption studies of Co(II) with γ-alumina-bound fulvic acid: effect of pH, ionic strength, fulvic acid and alumina concentration
    Mou, Juan
    Li, Chengjuan
    Wang, Guoju
    Shi, Wenxian
    JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2012, 292 (03) : 1099 - 1104
  • [33] Plutonium sorption and desorption behavior on bentonite
    Begg, James D.
    Zavarin, Mavrik
    Tumey, Scott J.
    Kersting, Annie B.
    JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 2015, 141 : 106 - 114
  • [34] Surface complexation modeling of U(VI) sorption on GMZ bentonite in the presence of fulvic acid
    Zheng, Jie
    Luo, Daojun
    Qiao, Yahua
    Wang, Liang
    Wu, Wangsuo
    Zhang, Chunming
    Ye, Yuanlv
    RADIOCHIMICA ACTA, 2017, 105 (01) : 33 - 41
  • [35] Effect of pH, ionic strength, fulvic acid and humic acid on sorption of Th(IV) on Na-rectorite
    P. Chang
    S. Yu
    T. Chen
    A. Ren
    C. Chen
    X. Wang
    Journal of Radioanalytical and Nuclear Chemistry, 2007, 274 : 153 - 160
  • [36] Effect of pH, ionic strength, fulvic acid and humic acid on sorption of Th(IV) on Na-rectorite
    Chang, P.
    Yu, S.
    Chen, T.
    Ren, A.
    Chen, C.
    Wang, X.
    JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2007, 274 (01) : 153 - 160
  • [37] Sorption and desorption of uranium(VI) on GMZ bentonite: effect of pH, ionic strength, foreign ions and humic substances
    Li, Shicheng
    Wang, Xiaoli
    Huang, Zhaoya
    Du, Liang
    Tan, Zhaoyi
    Fu, Yibei
    Wang, Xiaolin
    JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2016, 308 (03) : 877 - 886
  • [38] Sorption and desorption of uranium(VI) on GMZ bentonite: effect of pH, ionic strength, foreign ions and humic substances
    Shicheng Li
    Xiaoli Wang
    Zhaoya Huang
    Liang Du
    Zhaoyi Tan
    Yibei Fu
    Xiaolin Wang
    Journal of Radioanalytical and Nuclear Chemistry, 2016, 308 : 877 - 886
  • [39] Influence of soil humic acid and fulvic acid on sorption of thorium(IV) on MX-80 bentonite
    Xu, D.
    Wang, X. K.
    Chen, C. L.
    Zhou, X.
    Tan, X. L.
    RADIOCHIMICA ACTA, 2006, 94 (08) : 429 - 434
  • [40] Sorption and desorption of radiostrontium on calcareous soil and its solid components
    Jinzhou, Du
    Wenming, Dong
    Xiangke, Wang
    Zuyi, Tao
    Journal of Radioanalytical and Nuclear Chemistry, 1996, 203 (01): : 31 - 36
12345