| 有机-无机复合体对污染土壤中重金属Cu~（2＋）的原位固定能力的研究 |
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| 引用本文： | 马翠萍,杜璋璋.有机-无机复合体对污染土壤中重金属Cu~（2＋）的原位固定能力的研究[J].安徽农业科学,2011,39(26):16056-16057,16060. |
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| 作者姓名： | 马翠萍 杜璋璋 |
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| 作者单位： | 济宁职业技术学院生物与化学工程系,山东济宁,272037 |
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| 摘 要： | 目的]为解决土壤中的重金属污染问题提供参考。方法]利用湿法技术制备有机螯合剂二乙烯三胺五乙酸（DTPA）改性膨润土的有机-无机复合体,利用单因素试验法确定该吸附剂吸附供试土壤中金属离子Cu2＋的影响因素（温度、湿度、吸附解析次数）的最佳值。结果]该吸附剂吸附供试土壤中金属离子Cu2＋的最佳温度为20℃,最佳湿度（土壤持水量）为90%,有机-无机复合体吸附剂吸附-解析的最佳次数为3次,超过3次其吸附能力明显下降,需要补充或更换新的吸附剂,以便增强其吸附能力。结论]研究结果为重金属污染土壤的面源污染治理提供了理论依据。
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| 关 键 词： | 有机-无机复合体 污染土壤 原位固定 |
Research on the Fixation Capacity in Situ of Organic-inorganic Complex to the Heavy Metal-Cu~(2+) in Contaminated Soil |
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| MA Cui-ping et al.Research on the Fixation Capacity in Situ of Organic-inorganic Complex to the Heavy Metal-Cu~(2+) in Contaminated Soil[J].Journal of Anhui Agricultural Sciences,2011,39(26):16056-16057,16060. |
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| Authors: | MA Cui-ping |
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| Institution: | MA Cui-ping et al(Department of Biological and Chemical Engineering,Jining Vocational Technology College,Jining,Shandong 272037) |
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| Abstract: | Objective] The reference for the problem-solving of heavy metals' pollution in soil was provided.Method] The organic-inorganic complex in bentonite was improved with DTPA prepared with the technology of wetting method and the best value of the affecting factor(temperature,humidity,number of adsorption and desorption in the adsorbent for metal ion-Cu2+ in soil was determined with the design of single-factor experiment.Result] In the experiment in the adsorbent of metal ion-Cu2+in soil,the optimum temperat... |
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| Keywords: | Organic-inorganic complex Contaminated soil Fixation in situ |
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