| 酸雨条件下黄壤对镉的释放动力学研究 |
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| 引用本文： | 黄艺,张仕鹏,王红军,王沛东.酸雨条件下黄壤对镉的释放动力学研究[J].四川环境,2009,28(6):24-28,37. |
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| 作者姓名： | 黄艺 张仕鹏 王红军 王沛东 |
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| 作者单位： | 成都理工大学地球化学系,成都,610059 |
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| 基金项目： | 国家自然科学基金项目"酸雨胁迫下城市典型农业土壤镉的地球化学相平衡研究" |
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| 摘 要： | 对不同酸雨条件下黄壤对镉释放的研究发现，吸附态镉释放的过程可以分为快反应和慢反应两个阶段。在以常用动力学方程实验数据进行拟合的基础上，创建了反三角函数方程。结果表明，反三角函数方程对多种酸雨条件下黄壤吸附态镉释放过程的拟合度最佳，此外多项式方程、双常数方程也能较好地描述这一过程。
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| 关 键 词： | 酸雨 黄壤 镉 动力学 |
Study on Dynamics of Yellow Soil Releasing Cadmium at Acid Rain Conditions |
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| HUANG Yi,ZHANG Shi-peng,WANG Hong-jun,WANG Pei-dong.Study on Dynamics of Yellow Soil Releasing Cadmium at Acid Rain Conditions[J].Sichuan Environment,2009,28(6):24-28,37. |
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| Authors: | HUANG Yi ZHANG Shi-peng WANG Hong-jun WANG Pei-dong |
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| Institution: | ( Department of Geochemistry, Chengdu University of Technology, Chengdu 610059, China ) |
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| Abstract: | According to the batch experiments on behavior of yellow soil releasing cadmium at conditions with different acid rain, it found that the process of releasing absorbed cadmium in the soil consisted of a fast reaction and a slow reaction. In this paper, based on fitting the experimental data with conventional dynamic equations, an inverse circular function equation was developed. It showed that the inverse circular function equation had the best fitting to the process of yellow soil releasing cadmium at conditions with different acid rain. Besides, polynomial equations and two-constant equations can also describe this process properly. |
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| Keywords: | Acid rain yellow soil cadmium dynamics |
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