| 赤泥和污泥对土壤锌化学形态转化的影响 |
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| 引用本文： | 关东明,钟克师,彭先佳.赤泥和污泥对土壤锌化学形态转化的影响[J].环境工程,2013,31(1):122-125,132. |
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| 作者姓名： | 关东明 钟克师 彭先佳 |
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| 作者单位： | 1. 中国矿业大学(北京)化学与环境工程学院,北京,100083
2. 中国科学院生态环境研究中心环境水质学国家重点实验室,北京,100085 |
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| 基金项目： | 国家自然科学基金项目(40971164) |
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| 摘 要： | 通过土壤室内培养实验,研究了赤泥和污泥对土壤中Zn化学形态转化的影响。研究表明:单独使用赤泥可以有效降低土壤中植物可利用态Zn含量,促进可交换态(EXC)、碳酸盐结合态(CA)、有机结合态(OM)转化为残渣态(RES),而污泥对Zn的固稳效果是暂时的。赤泥和污泥的一起使用较单独使用赤泥或污泥固稳Zn的效果好,既能促进有效态重金属Zn转化为不可利用态Zn,又能增加土壤肥力。
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| 关 键 词： | 赤泥 污泥 锌 化学形态 |
EFFECTS OF RED MUD AND SLUDGE ON THE TRANSFORMATION OF Zn SPECIATION IN SOIL |
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| Guan Dongming,Zhong Keshi,Peng Xianjia.EFFECTS OF RED MUD AND SLUDGE ON THE TRANSFORMATION OF Zn SPECIATION IN SOIL[J].Environmental Engineering,2013,31(1):122-125,132. |
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| Authors: | Guan Dongming Zhong Keshi Peng Xianjia |
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| Institution: | 1.School of Chemical and Environmental Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China; 2.SLKEAC,Research Center for Eco-Environment Sciences,Chinese Academy of Sciences,Beijing 100085,China) |
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| Abstract: | An indoor soil incubation experiment was carried out to study the effects of red mud and sludge on the transformation of Zn speciation in soil.Research showed that individual amendment of red mud could effectively reduce the content of bioavailability-Zn,promoting EXC-Zn,CA-Zn,OM-Zn to transform into RES-Zn.But the effect of sludge on the transformation of soil Zn was temporary.It was resulted that comprehensive utilization of red mud and sludge could show a better effect than single red mud or sludge amendment.It could promote bioavailability-Zn to transform into unavailable-Zn,meanwhile increase soil fertility. |
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| Keywords: | red mud sludge zinc chemical form |
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