| 苯及其取代物与对硝基苯胺在沉积物上的竞争吸附 |
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| 引用本文： | 娄保锋,朱利中,杨坤.苯及其取代物与对硝基苯胺在沉积物上的竞争吸附[J].中国环境科学,2004,24(3):0-0. |
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| 作者姓名： | 娄保锋 朱利中 杨坤 |
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| 作者单位： | 浙江大学环境科学系 浙江杭州310028 |
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| 基金项目： | 国家自然科学基金资助项目(40031010)，浙江省自然科学基金青年科技人才培养专项资金资助项目(RC99032) |
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| 摘 要： | 研究了沉积物-水体系中苯及其单取代化合物甲苯、氯苯、硝基苯、苯酚、苯胺和苯甲酸(作为共溶质)与对硝基苯胺(作为主溶质)之间的竞争吸附作用.结果表明,在相同的相对浓度下,易与沉积物有机质形成氢键的共溶质竞争能力强于不易形成氢键的共溶质;共溶质对主溶质吸附的竞争效应主要发生在表面吸附部分,对分配部分影响不大;有机化合物在单溶质体系中吸附等温线的非线性程度与其在多溶质体系中作为共溶质时的竞争能力具有相关性.
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| 关 键 词： | 对硝基苯胺 苯及其单取代化合物 沉积物 竞争吸附 |
| 文章编号： | 1000-6923(2004)03-0327-05 |
| 收稿时间： | 1900-01-01; |
| 修稿时间： | 2003年11月6日 |
Competitive sorption behavior between p-nitroaniline and benzene and its monosubstituent in sediment-water system |
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| LOU Bao-feng,ZHU Li-zhong,YANG Kun.Competitive sorption behavior between p-nitroaniline and benzene and its monosubstituent in sediment-water system[J].China Environmental Science,2004,24(3):0-0. |
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| Authors: | LOU Bao-feng ZHU Li-zhong YANG Kun |
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| Abstract: | Competitive sorption between p-nitroaniline as main solute and benzene and its monosubstituents such as toluene, monochlorobenzen, nitrobenzene, phenol, aniline and benzoic acid as cosolute in the sediment-water system was studied. Results showed that under identical relative concentrations, cosolute that easily formed H-bonding with organic matter of sediment had stronger competitive power than those that not easily formed H-bonding. The competitive effect of cosolute on main solute sorption occurred mainly on the surface sorption part with little influence on the distribution part. The nonlinearity degree of sorption isotherms of organic compounds in single solute systems possessed correlation with their competitive power in polysolute system as cosolute. |
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| Keywords: | p-nitroaniline benzene and its monosubstituent sediment competitive sorption |
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