| 铅和铜在棕壤上共吸附的试验研究 |
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| 引用本文： | 司大伟,赵士美,贲定丹,张凤杰.铅和铜在棕壤上共吸附的试验研究[J].天津农业科学,2012,18(4):47-49. |
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| 作者姓名： | 司大伟 赵士美 贲定丹 张凤杰 |
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| 作者单位： | 大连民族学院环境与资源学院,辽宁大连,116600 |
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| 基金项目： | 大连民族学院自主科研青年基金项目(DC110315) |
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| 摘 要： | 研究了单一和二元的重金属体系中棕壤吸附Cu2+和Pb2+的热力学特征。结果表明,Freundlich吸附等温线可以很好地描述两种体系中土壤吸附重金属的热力学过程,棕壤吸附2种重金属离子的能力顺序为Cu2+>Pb2+。在相同的条件下,与单一体系相比,二元体系中Cu2+和Pb2+吸附量明显下降。土壤对Cu2+和Pb2+的吸附表现为共吸附现象。
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| 关 键 词： | 铅 铜 棕壤 共吸附 |
Co-adsorption of Lead and Copper in Brown Soil |
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| SI Da-wei
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ZHAO Shi-mei
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BEN Ding-dan
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ZHANG Feng-jie.Co-adsorption of Lead and Copper in Brown Soil[J].Tianjin Agricultural Sciences,2012,18(4):47-49. |
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| Authors: | SI Da-wei ZHAO Shi-mei BEN Ding-dan ZHANG Feng-jie |
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| Institution: | (College of Environment and Resources, Dalian Nationalities University, Dalian, Liaoning 116600,China) |
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| Abstract: | Thermodynamic characteristics of Cu2+ and Pb2+ adsorption to the brown soil in the single single-component and binary-component solutions were investigated. The results indicated that the Freundlich adsorption isotherm could be used to describe well the adsorption thermodynamics of heavy metals in the two solutions. Heavy metal sorption capacities to the soil was in the order of Cu2+ > Pb2+.Compared with the single metal system, the sorbed amount of Cu2+ and Pb2 with the binary metal system decreased apparently. This indicated the adsorption of Cu2+ and Pb2+ on the brown soil was controlled by the co-sorption mechanism. |
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| Keywords: | lead copper brown soil co-adsorption |
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