| 碳酸盐对铜离子在黄土中吸持及形态影响的实验研究 |
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| 引用本文： | 赵蓉,倪晋仁,张岚,邓宝山,孙卫玲.碳酸盐对铜离子在黄土中吸持及形态影响的实验研究[J].环境化学,2002,21(4):349-355. |
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| 作者姓名： | 赵蓉 倪晋仁 张岚 邓宝山 孙卫玲 |
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| 作者单位： | 1. 北京大学环境科学中心,水沙科学教育部重点实验室,北京,100871
2. 北京大学城市与环境学系,北京,100871 |
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| 基金项目： | 国家重点基础研究发展规划项目 (G1 9990 4 36 0 3) |
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| 摘 要： | 选用黄土和重金属Cu为研究对象，通过等温吸持实验和Tessier形态提取实验，研究了碳酸盐对铜离子在黄土中吸持及形态的影响。结果表明：黄土去除碳酸盐后，其吸持铜离子的量大幅度降低；碳酸盐结合态、铁锰氧化物结合态和有机质结合态铜含量明显降低，而可交换态铜含量显著增加。
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| 关 键 词： | 铜离子 实验研究 黄土 碳酸盐 吸持 沉淀 |
EFFECTS OF CARBONATES IN LOESS ON COPPER SORPTION AND SPECIATION |
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| ZHAO Rong,NI Jin-ren,ZHANG Lan,DENG Bao-shan,SUN Wei-ling.EFFECTS OF CARBONATES IN LOESS ON COPPER SORPTION AND SPECIATION[J].Environmental Chemistry,2002,21(4):349-355. |
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| Authors: | ZHAO Rong NI Jin-ren ZHANG Lan DENG Bao-shan SUN Wei-ling |
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| Abstract: | The effect of carbonates on copper sorption by loess and on chemical speciation is studied through a series of experiments on isothermal sorption and sequential chemical extraction.The sorption of copper decreases significantly after extraction of carbonates.Meanwhile,the copper speciation is also greatly changed.The content of copper bound to carbonates,iron and manganese oxi-des,and organic matter decrease,while the exchangeable copper speciation increases obviously. |
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| Keywords: | loess copper carbonates sorption precipitation |
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