| pH值对重金属Pb~(2+)吸附特性的影响 |
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| 引用本文： | 乔冬梅,庞鸿宾,齐学斌,樊涛,赵志娟,樊向阳,朱东海. pH值对重金属Pb~(2+)吸附特性的影响[J]. 灌溉排水学报, 2010, 29(6) |
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| 作者姓名： | 乔冬梅 庞鸿宾 齐学斌 樊涛 赵志娟 樊向阳 朱东海 |
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| 基金项目： | 国家自然科学基金项目，国际合作项目，中国农业科学院农业资源与农业区划研究所中央级公益性科研院所基本科研业务费专项资金项目，国家人事部层次留学人员科技活动资助项目，国家科技大专项项目 |
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| 摘 要： | 以砂壤土为研究对象,采用1次平衡法,研究了pH值对重金属Pb2+吸附特性的影响,在此基础上对等温吸附进行模拟分析。结果表明,土壤对Pb2+吸附的pH值影响敏感阈值范围为pH7。所引入的平衡质量体积比与吸附量之间的模型ln(S)=K1×CK2能较好地模拟不同pH值条件下的等温吸附规律。其次为Freundilich模型,Henry模型较适用于低pH值条件下的模拟分析。
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| 关 键 词： | 土壤吸附 等温吸附模拟 pH值 Pb2+ |
Effect of pH Level on Adsorption Characteristics of Pb2+ |
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| QIAO Dong-mei,PANG Hong-bin,QI Xue-bin,FAN Tao,ZHAO Zhi-juan,FAN Xiang-yang,ZHU Dong-hai. Effect of pH Level on Adsorption Characteristics of Pb2+[J]. Journal of Irrigation and Drainage, 2010, 29(6) |
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| Authors: | QIAO Dong-mei PANG Hong-bin QI Xue-bin FAN Tao ZHAO Zhi-juan FAN Xiang-yang ZHU Dong-hai |
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| Abstract: | The balance method was used to study the effect of pH level on adsorption characteristics of Pb2+.On the basis,isothemal adsorption was simulated.The results showed that the absorption of Pb2+ is sensitive less pH 7.The model of ln(S)=K1×CK2 between balance concentration and absorption capacity that is introduced can simulated isothemal adsorption well under different pH level.Freundilich model is better,and Henry model is fit to less pH level. |
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| Keywords: | Soil absorption isothemal adsorption simulation pH level Pb2+ |
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