SOIL CLEANUP BY SURFACTANT WASHING .1. LABORATORY RESULTS AND MATHEMATICAL-MODELING

被引：32
作者：
CLARKE, AN
PLUMB, PD
SUBRAMANYAN, TK
WILSON, DJ
机构：
[1] VANDERBILT UNIV,DEPT CHEM,NASHVILLE,TN 37235
[2] VANDERBILT UNIV,DEPT CIVIL & ENVIRONM ENGN,NASHVILLE,TN 37235
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 1991年 / 26卷 / 03期
关键词：
D O I：
10.1080/01496399108050475
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The removal of weathered-in PCBs from clayey soil by surfactant washing is demonstrated at bench scale. Spent surfactant solution was treated for recycle at bench scale by countercurrent liquid-liquid extraction for the removal of nonvolatile contaminants, and by thin film aeration in packed columns for removal of volatile organics. A correlation of micelle/water partition coefficients with octanol/water partition coefficients reported earlier by Valsaraj et al. is extended to several additional compounds. Mathematical models for batch-batch, batch-continuous flow, and countercurrent flow surfactant soil washing are described, and the effects of the model parameters are discussed.
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页码：301 / 343
页数：43
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