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| Sorption of Sb(Ⅴ) on soils with different physicochemical properties and its influencing factors |
| Received:January 29, 2016 |
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| KeyWord:antimonate sorption capacity;partition coefficient;soil property;correlation analysis |
| Author Name | Affiliation | E-mail | | SUN Qian | Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
University of Chinese Academy of Sciences, Beijing 100049, China | | | WANG Yu-jun | Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China | yjwang@issas.ac.cn | | FAN Ting-ting | Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
University of Chinese Academy of Sciences, Beijing 100049, China | | | LIU Hai-Long | Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China | | | XUAN Liang | Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China | | | ZHOU Dong-mei | Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China | |
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| Abstract: |
| Antimony(Sb) and arsenic(As) belong to the same group in the periodic table of elements. As well as As, Sb is highly toxic. However, research about soil environmental behaviors of Sb is limited. In the present study, batch sorption experiments were carried out to study the adsorption behaviors of antimonite[Sb(Ⅴ)] on 35 Chinese soils with different physicochemical properties to reveal the influences of soil properties on sorption of Sb(Ⅴ) on soils. Soil physicochemical properties significantly affected the sorption of Sb(Ⅴ) on soils. Xinghua boggy soil(60~80 cm) had the largest adsorption amount, which was ten times larger than that of Shaoguan latosol red soil, which had the lowest adsorption amount. The Sb(Ⅴ) adsorption was significantly correlated with the content of metal hydroxides, especially MnDCB, CEC, dissolved organic carbon and total phosphorus. The principal component analysis and the multiple stepwise regression showed that iron/aluminum oxides, manganese oxides and phosphorus described 75% of the variability of the regression model. These results advanced our understanding of the environmental behaviors of Sb in soils. |
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