| 城市土壤对铅的吸附动力学特征及影响因素 |
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| 引用本文： | 章梦吟,陈达,滕丽华.城市土壤对铅的吸附动力学特征及影响因素[J].广东微量元素科学,2009,16(2):36-40. |
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| 作者姓名： | 章梦吟 陈达 滕丽华 |
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| 作者单位： | 浙江万里学院生物与环境学院,浙江,宁波,315100 |
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| 基金项目： | 宁波市海洋渔业局项目 |
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| 摘 要： | 采用批量法对温州景山森林公园5种不同土壤的Ph的吸附动力学行为进行了研究，初步探讨了不同理化性质土壤对重金属吸附的影响。结果表明，在实验条件下，5种土样均在180rain内达到吸附平衡；抛物线扩散方程、双常数速率方程和Elovich方程能很好地描述5种土壤Pb^2＋动力学行为；随着外源Pb^2＋质量浓度的增大，土壤对Pb^2＋的吸附量都相应增大；通过吸附速率与吸附强度与土壤理化性质相关性分析，得出土壤对重金属铅的吸附速率是土壤各理化性质综合作用的结果，而土壤对铅的吸附强度在很大程度上取决于土壤pH。
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| 关 键 词： | 土壤 重金属 铅 吸附 |
Adsorption Characteristics and Influencing Factors of Urban Soils for Pb |
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| ZHANG Mengyin,CHEN Da,TENG Lihua.Adsorption Characteristics and Influencing Factors of Urban Soils for Pb[J].Trace Elements Science,2009,16(2):36-40. |
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| Authors: | ZHANG Mengyin CHEN Da TENG Lihua |
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| Institution: | College of Biological and Environmental Science of Zhejiang Wanli University;Ningbo 315100;China |
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| Abstract: | To investigate the adsorption of heavy metal in city soil,adsorption dynamic behavior of Pb were studied by the batch method on five different soils of Jingshan Forest Park in Wenzhou,and fringe probed into the soil physical chemistry character and adsorption to the adsorption velocity of heavy metal.The results showed that the adsorption equilibrium time was 180 min.The adsorption values with Pb in the most soils are argument as the time going and finally tending to be stable.Parabolic diffusion equation,t... |
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| Keywords: | soil heavy metal Pb adsorption |
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