| 陈志和,方红卫,陈明洪.泥沙颗粒表面吸附铜离子的分布特征的实验研究[J].水利学报,2008,39(5): |
| 泥沙颗粒表面吸附铜离子的分布特征的实验研究 |
| Experimental study on distribution characteristics of copper ions adsorbed on the surface of sediment particles |
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| DOI： |
| 中文关键词: 泥沙颗粒 铜离子 吸附实验 电子显微镜 |
| 英文关键词: sediment particle copper ions adsorption electronic microscope |
| 基金项目: |
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| 中文摘要: |
| 现有的水体中泥沙与污染物质关系方面的研究，多着重于吸附模式的理论探讨和吸附总量的实验研究，而对泥沙颗粒的表面形态和污染物质在泥沙颗粒表面的分布研究较少。本文在泥沙颗粒硝酸铜吸附实验和场发射枪扫描电子显微镜观测的基础上，提出了泥沙颗粒表面铜离子分布观测的实验方法，该方法能够定量确定铜离子分布与泥沙表面形态的关系。观测表明：在泥沙颗粒表面的边脊与凹谷处吸附铜离子较多。 |
| 英文摘要: |
| The sediment samples with d50 equal to 5.98μm obtained from the Guanting Reservoir were mixed with nitrate copper solution to study the distribution characteristics of copper ions adsorbed on the surface of sediment particles. The field emission gun transmission electron microscope was used to observe the distribution of copper ions. The relationship between copper ions distribution and morphology of sediment was quantitatively detected. It is found that the distribution of copper ions is significantly affected by the morphology of sediment surface, most part of ions is concentrated in the valleys and ridges of the sediment particles. |
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