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| The curve of ion exchange ratio(%)-pH of the interaction between suspended particles with Cd(II) in the Yellow River | |
| 作者姓名： | Yang Hong-wei Jiao Xiao-bao Guo Bo-shu Yang Yu-ying Song Zhi-xiang |
| 作者单位： | Institute of Environmental Chemistry, Inner Mongolia Normal University, Hohhot 010022, China,Department of Chemistry, Inner Mongolia Teachers College for Nationalities, China,Scientific Experiment & Research Institute,reconnaissance,Planning, Design & Research Institute, Ministry of Water Resources, Zhengzhou 450003, China |
| 摘 要： | The curve of ion exchange ratio(%)-pH of the interactionbetween suspended particles with Cd(II) in the Yellow River wasstudied. The effects of lysine on this curve have been alsoinvestigated. The results showed that (1) Cadmium in Cd(OH)+ formin the suspended particles exchanges with the cations.The exchangeratio of Cd2+ is nearly at its greatest value in the range of pH(8.0-8.5) in natural aquatic system; (2) Ion exchange ratiodecreases as the concentration of Cd2+ raises from 8.9×10-6 mol/L to 2x8.9 x 10-6mol/L; (3) At the lysine concentration of 6.8x10-6 mol/L, it can promote the ion exchange ratio; (4) Adsorption of thesuspended particles to cadmium is weaker in seawater and Jin ShaRiver than in the Yellow River. |
| 关 键 词： | liquid-solid interaction cadmium |
| 收稿时间： | 1997/3/17 0:00:00 |
| 修稿时间： | 1997/11/12 0:00:00 |
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