Pedosphere 6(2): 163--166, 1996
ISSN 1002-0160/CN 32-1315/P
©1996 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Influence of chelating agents on chromium fate in sediment |
| WANG Xiao-Chang1,2, SUN Jin-He2, ZHANG Qin-Zheng2, CAO Zhi-Hong1 and CHEN Zi-Yuan2 |
1 Institute of Soil Science, Academia Sinica, Nanjing 210008 (China);
2 Zhejiany Agricultural University, Hangzhou 310029 (China) |
| ABSTRACT |
| A laboratory investigation on reaction between chelating agents and chromium was conducted to evaluate the effect of chelating agents on the adsorption and desorption of chromium in sediment. The amount of adsorbed chromium(Ⅵ) in sediment decreased slightly by 5%-10% because of addition of chelating agents. Chelating agents inhibited the removal of Cr(Ⅲ) by sediment from solutions and the inhibiting effect was in the order: citric acid > tartaric acid > EDTA, salicylic acid. No effect of chelating agents on desorption of chromium in sediment was observed. |
| Key Words: adsorption, chelating agent, Cr, desorption, sediment |
| Citation: Wang, X. C., Sun, J. H., Zhang, Q. Z., Cao, Z. H. and Chen, Z. Y. 1996. Influence of chelating agents on chromium fate in sediment. Pedosphere. 6(2): 163-166. |
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