非离子表面活性剂对两相系统毛细压力和饱和度关系的影响

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非离子表面活性剂对两相系统毛细压力和饱和度关系的影响

陈家军, 支银芳, 郑冰, 尉斌

文章导航 > 水科学进展 > 2008 > 19(4): 453-459

陈家军, 支银芳, 郑冰, 尉斌. 非离子表面活性剂对两相系统毛细压力和饱和度关系的影响[J]. 水科学进展, 2008, 19(4): 453-459.

引用本文:

陈家军, 支银芳, 郑冰, 尉斌. 非离子表面活性剂对两相系统毛细压力和饱和度关系的影响[J]. 水科学进展, 2008, 19(4): 453-459.

CHEN Jia-jun, ZHI Yin-fang, ZHENG Bing, WEI Bin. Influence of a nonionic surfactant on the relationships between capillary pressure and saturation in two-phase system[J]. Advances in Water Science, 2008, 19(4): 453-459.

Citation:

CHEN Jia-jun, ZHI Yin-fang, ZHENG Bing, WEI Bin. Influence of a nonionic surfactant on the relationships between capillary pressure and saturation in two-phase system[J]. Advances in Water Science, 2008, 19(4): 453-459.

非离子表面活性剂对两相系统毛细压力和饱和度关系的影响

环境模拟与污染控制国家重点联合实验室, 北京师范大学环境学院, 北京, 100875

基金项目: 国家自然科学基金资助项目(40272107)

作者简介:
陈家军(1962- ),男,黑龙江绥滨人,教授,主要从事环境模拟与污染治理、土壤污染修复、固体废物处置研究.E-mail:jeffchen@bnu.edu.cn

中图分类号: P641.2;S152.72

Influence of a nonionic surfactant on the relationships between capillary pressure and saturation in two-phase system

State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China

Funds: The study is financially supported by the National Natural Science Foundation of China(No.40272107).

摘要: 表面活性剂至水相的引入将对原先包含纯水两相系统的毛细压力和饱和度关系存在影响.对含有非离子表面活性剂Triton X-100的水-气和水-油两相系统中的毛细压力-饱和度关系曲线进行了试验测定.试验结果表明,同不含表面活性剂的纯水系列相比,在同一饱和度情况下,含有表面活性剂的Triton X-100(0.1%)系列对应的毛细压力水头值都有不同程度的减小,说明在Triton X-100存在的情况下,驱替出同样数量的湿润相体积所需的毛细压力值较小.以van Genuchten关系式为基础的拟合结果表明,在已知纯水系列毛细压力饱和度关系的情况下,对于Triton X-100-气系统的毛细压力饱和度关系,考虑界面张力降低作用引入折算系数得到的拟合值更接近于真实值;而对于Triton X-100-油系统拟合值接近真实值的程度则随多孔介质的不同而有所不同.
- 两相系统 /
- 毛细压力 /
- 饱和度 /
- 非离子表面活性剂 /
- Triton X-100
Abstract: The objective of this study is to investigate the effect of a nonionic surfactant,Triton X-100(0.1%),on the capil lary pressure-saturation relationships in two-phase system.This paper sets out the relationships between the capillary pressure and the saturation of water-air and water-oil system with surfactant Triton X-100.Experimental results show that,compared with the system without surfactant,the values of capillary pressure of the system with surfactant are lower under the same saturation,which indicates that lower capillary pressure is enough to drive the same volume of wetting-phase liquid.The data fitting based on the van Genuchten model shows that,when the relationship between capillary pressure and saturation without surfactant is known,the fitting values with a scaling factor involving interfacial tension accord with the measured values for water-air system with surfactant; however,for the water-oil system with surfactant,the scaling approach making fitting values accord with the measured values dependeds on the porous media.
- two-phase system /
- capillary pressure /
- saturation /
- nonionic surfactant /
- Triton X-100

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非离子表面活性剂对两相系统毛细压力和饱和度关系的影响

环境模拟与污染控制国家重点联合实验室, 北京师范大学环境学院, 北京, 100875

基金项目: 国家自然科学基金资助项目(40272107)

作者简介:
陈家军(1962- ),男,黑龙江绥滨人,教授,主要从事环境模拟与污染治理、土壤污染修复、固体废物处置研究.E-mail:jeffchen@bnu.edu.cn

收稿日期: 2007-10-15
刊出日期: 2008-07-25

中图分类号: P641.2;S152.72

关键词:

非离子表面活性剂 /

摘要: 表面活性剂至水相的引入将对原先包含纯水两相系统的毛细压力和饱和度关系存在影响.对含有非离子表面活性剂Triton X-100的水-气和水-油两相系统中的毛细压力-饱和度关系曲线进行了试验测定.试验结果表明,同不含表面活性剂的纯水系列相比,在同一饱和度情况下,含有表面活性剂的Triton X-100(0.1%)系列对应的毛细压力水头值都有不同程度的减小,说明在Triton X-100存在的情况下,驱替出同样数量的湿润相体积所需的毛细压力值较小.以van Genuchten关系式为基础的拟合结果表明,在已知纯水系列毛细压力饱和度关系的情况下,对于Triton X-100-气系统的毛细压力饱和度关系,考虑界面张力降低作用引入折算系数得到的拟合值更接近于真实值;而对于Triton X-100-油系统拟合值接近真实值的程度则随多孔介质的不同而有所不同.

English Abstract

陈家军, 支银芳, 郑冰, 尉斌. 非离子表面活性剂对两相系统毛细压力和饱和度关系的影响[J]. 水科学进展, 2008, 19(4): 453-459.

引用本文:

陈家军, 支银芳, 郑冰, 尉斌. 非离子表面活性剂对两相系统毛细压力和饱和度关系的影响[J]. 水科学进展, 2008, 19(4): 453-459.

CHEN Jia-jun, ZHI Yin-fang, ZHENG Bing, WEI Bin. Influence of a nonionic surfactant on the relationships between capillary pressure and saturation in two-phase system[J]. Advances in Water Science, 2008, 19(4): 453-459.

Citation:

CHEN Jia-jun, ZHI Yin-fang, ZHENG Bing, WEI Bin. Influence of a nonionic surfactant on the relationships between capillary pressure and saturation in two-phase system[J]. Advances in Water Science, 2008, 19(4): 453-459.

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