| 土壤理化特性对土壤吸附阴离子表面活性剂的影响 |
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| 引用本文： | 熊丽文,饶品华,周晓英,杨瑞崧,何明.土壤理化特性对土壤吸附阴离子表面活性剂的影响[J].上海交通大学学报(农业科学版),2005,23(4):387-391. |
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| 作者姓名： | 熊丽文 饶品华 周晓英 杨瑞崧 何明 |
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| 作者单位： | 上海交通大学,资源与环境系,上海,201101 |
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| 基金项目： | 上海市科委基础研究重点项目(02DJ14046) |
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| 摘 要： | 在研究设施土、蔬菜土及水稻土3种土壤理化性质的基础上，考察了这些不同利用方式下的土壤对阴离子表面活性剂十二烷基苯磺酸钠（SDBS）的吸附特性。实验结果表明，3种利用方式下的土壤质地均以粉砂壤土为主，且呈中性或微酸性。设施土表层含盐量较高，蔬菜土、水稻土表层和底层含盐量均较低。SDBS在土壤中的吸附基本符合Langmuir型等温线，其在3种土壤中饱和吸附量的大小顺序为：设施土〉蔬菜土〉水稻土。水稻土去有机质后对SDBS的吸附增加。水稻土在不同阳离子饱和后吸附SDBS的规律为：钙饱和土〉镁饱和土〉钾饱和土〉钠饱和土。土壤利用方式、土壤有机质含量以及吸附性阳离子的种类对SDBS在土壤中的吸附有较大影响。
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| 关 键 词： | 土壤 理化性质 阴离子表面活性剂 吸附 |
| 文章编号： | 1671-9964(2005)04-0387-05 |
| 修稿时间： | 2004年12月27 |
Effect of Physico-Chemical Properties on Soils' Adsorption of Anionic Surfactant |
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| XIONG Li-wen,RAO Pin-hu,ZHOU Xiao-ying,YANG Rui-song,HE Ming.Effect of Physico-Chemical Properties on Soils'' Adsorption of Anionic Surfactant[J].Journal of Shanghai Jiaotong University (Agricultural Science),2005,23(4):387-391. |
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| Authors: | XIONG Li-wen RAO Pin-hu ZHOU Xiao-ying YANG Rui-song HE Ming |
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| Abstract: | Based on the investigation of physico-chemical properties of soils under greenhouse,upland and water-logged condition,an approach to the adsorption characteristics of anionic surfactant(SDBS)on the soils had been made.The result showed that i)the soils showed mainly silty sandy loam texture,the pH of the soils was a little acidic.The salinity of the topsoils under greenhouse condition was higher than that of the soils under upland and water-logged condition.ii)The adsorption isotherm of SDBS on the soils was basically according to the type Langmuir in different treatments of the soils.The adsorption amount of SDBS was in the order:SS> SC> SD.The soils under water logged condition without organic matter had a larger adsorption amount than that with organic matter.The adsorption of SDBS on the soils saturated by different ions was in the order:SD-Ca2+ > SD-Mg2+ > SD-K+ > SD-Na+.In conclusion,the adsorption of SDBS on the soils was greatly influenced by the soils under different conditions,the content of organic matter,and the kinds of adsorptive cations. |
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| Keywords: | soils physico-chemical property anionic surfactant adsorption |
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