| 重金属污染物在下包气带饱水条件下迁移转化的研究 |
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| 引用本文： | 刘兆昌,聂永丰,张兰生,王占生,白庆中,杨崇洁.重金属污染物在下包气带饱水条件下迁移转化的研究[J].环境科学学报,1990,10(2):160-172. |
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| 作者姓名： | 刘兆昌 聂永丰 张兰生 王占生 白庆中 杨崇洁 |
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| 作者单位： | 清华大学环境工程系 北京
(刘兆昌，聂永丰，张兰生，王占生，白庆中)，清华大学环境工程系 北京(杨崇洁) |
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| 摘 要： | 不同的重金属污染物进入饱水的下包气带土层之后,由于其形态和价态变化差异较大,在土壤中的迁移、转化特征有明显差别,其迁移顺序为Cr_2O_7~(2-)>AsO_2~->>Hg~(2+)>Cd~(2+)>Pb~(2+).不同土质对重金属污染物迁移的影响为:在砂土中迁移最快,亚砂土中次之,亚粘土中最慢.
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| 关 键 词： | 重金属 污染物 迁移 土壤 饱水 |
| 收稿时间： | 1988/10/13 0:00:00 |
TRANSLOCATION AND TRANSFORMATION OF HEAVY METALS IN WATER LOGGED AERATION ZONE OF SOIL |
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| Liu Zhaochang,Nie Yongfeng,Zhang Lansheng,Wang Zhansheng,Bai Qingzhong and Yang Chongjie.TRANSLOCATION AND TRANSFORMATION OF HEAVY METALS IN WATER LOGGED AERATION ZONE OF SOIL[J].Acta Scientiae Circumstantiae,1990,10(2):160-172. |
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| Authors: | Liu Zhaochang Nie Yongfeng Zhang Lansheng Wang Zhansheng Bai Qingzhong and Yang Chongjie |
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| Institution: | Department of Environment Engineering, Tsinghua University, Beijing,Department of Environment Engineering, Tsinghua University, Beijing,Department of Environment Engineering, Tsinghua University, Beijing,Department of Environment Engineering, Tsinghua University, Beijing,Department of Environment Engineering, Tsinghua University, Beijing and Department of Environment Engineering, Tsinghua University, Beijing |
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| Abstract: | The valence states and the movement of several heavy metals in waterlogged aeration zone of soil were studied and the mobilities of these metal appeared to be in following order,
Cr2O72- > AsO2 > Hg2+ > Cd2+ > Pb2+.
soil structure showed to be an important factor effecting the movement of the metals. |
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| Keywords: | heavy metal soil water logged zone adsorption |
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