INTERACTIONS BETWEEN NONIONIC SURFACTANT MONOMERS, HYDROPHOBIC ORGANIC-COMPOUNDS AND SOIL

被引：47

作者：

EDWARDS, DA

LIU, Z

LUTHY, RG

机构：

来源：

WATER SCIENCE AND TECHNOLOGY | 1992年 / 26卷 / 1-2期

关键词：

SURFACTANT; CMC; SOIL; HYDROPHOBIC ORGANIC COMPOUNDS; SORPTION; BINDING; PARTITION COEFFICIENTS; PAH;

D O I：

10.2166/wst.1992.0395

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Nonionic surfactant at aqueous-phase concentrations less than the CMC can affect the distribution of hydrophobic organic compounds (HOCs) in soil/aqueous systems. Sub-CMC levels of nonionic surfactant can enhance the apparent aqueous-phase HOC solubility, increase the soil organic carbon content due to surfactant sorption, and modify the value of the HOC soil/aqueous distribution coefficient. Experimental data quantifying these effects are presented for several HOCs and nonionic surfactants. A method is proposed for predicting the distribution of HOC between soil and bulk solution with sub-CMC aqueous-phase concentrations of nonionic surfactant.

引用

页码：147 / 158

页数：12

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