Effect of fulvic acid and ionic strength on the sorption of radiostrontium on Chinese calcareous soil and its solid components |
| |
| Authors: | M L Zhang M L Zhang M L Zhang A Ren A Ren A Ren D Shao D Shao D Shao X Wang X Wang X Wang |
| |
| Institution: | (1) Anhui Science and Technology University; Institute of Plasma Physics, Chinese Academy of Science, Fenyang, 233100, Anhui, P.R. China; P.O. Box 1126, Hefei, 230031, P.R. China;(2) Anhui Science and Technology University; Institute of Plasma Physics, Chinese Academy of Science, Fenyang, 233100, Anhui, P.R. China; P.O. Box 1126, Hefei, 230031, P.R. China;(3) Anhui Science and Technology University; Institute of Plasma Physics, Chinese Academy of Science, Fenyang, 233100, Anhui, P.R. China; P.O. Box 1126, Hefei, 230031, P.R. China;(4) Institute of Plasma Physics, Chinese Academy of Science, P.O. Box 1126, Hefei, 230031, P.R. China;(5) Institute of Plasma Physics, Chinese Academy of Science, P.O. Box 1126, Hefei, 230031, P.R. China;(6) Institute of Plasma Physics, Chinese Academy of Science, P.O. Box 1126, Hefei, 230031, P.R. China;(7) Institute of Plasma Physics, Chinese Academy of Science, P.O. Box 1126, Hefei, 230031, P.R. China;(8) Institute of Plasma Physics, Chinese Academy of Science, P.O. Box 1126, Hefei, 230031, P.R. China;(9) Institute of Plasma Physics, Chinese Academy of Science, P.O. Box 1126, Hefei, 230031, P.R. China;(10) Institute of Plasma Physics, Chinese Academy of Science, P.O. Box 1126, Hefei, 230031, P.R. China;(11) Institute of Plasma Physics, Chinese Academy of Science, P.O. Box 1126, Hefei, 230031, P.R. China;(12) Institute of Plasma Physics, Chinese Academy of Science, P.O. Box 1126, Hefei, 230031, P.R. China |
| |
| Abstract: | Summary The sorption and desorption of radionuclide 90Sr2+were investigated on untreated calcareous soil and two treated soils to remove organic matter and calcium carbonate using
batch technique. The experiments were carried out at ambient condition, pH 7.8±0.1 and in the presence of 0.001M NaCl. Effects
of fulvic acid and ionic strength on the sorption of 90Sr2+on calcareous soil were also studied. It was found that the sorption isotherms are linear in the strontium concentration range
used herein, and the sorption of 90Sr2+on the calcareous soil can be described as a reversible sorption process and the sorption mechanism is mainly ion-exchange.
The sorption is dependent on ionic strength, and fulvic acid enhances the sorption of 90Sr2+on calcareous soil. Organic matter present in the calcareous soil is a significant trap of 90Sr2+and is responsible for the sorption. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
