GROUNDWATER CLEANUP BY IN-SITU SPARGING .7. VOLATILE ORGANIC-COMPOUNDS CONCENTRATION REBOUND CAUSED BY DIFFUSION AFTER SHUTDOWN

被引：6

作者：

GOMEZLAHOZ, C ^{[1
]}

RODRIGUEZMAROTO, JM ^{[1
]}

WILSON, DJ ^{[1
]}

机构：

[1] VANDERBILT UNIV,DEPT CHEM,NASHVILLE,TN 37235

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 1994年 / 29卷 / 12期

关键词：

D O I：

10.1080/01496399408007371

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The sparging of aquifers contaminated with volatile organic compounds (VOCs) is examined by means of a mathematical model which includes the kinetics of solution of nonaqueous phase liquid (NAPL) droplets and of diffusion of VOCs from porous layers of low permeability. The well configuration is that of a single vertical well screened only near the bottom. The dependence of cleanup rates on model parameters (well depth, air flow rate, NAPL droplet diameter, thickness of low-permeability structures, etc.) is reported. The rebound of VOC concentration in the mobile aqueous phase after the sparging well is shut down is examined. Model runs require only a few minutes of computer time on currently available microcomputers.

引用

页码：1509 / 1528

页数：20

共 4 条

[1]

BROWN RA, AIR SPARGING PRIMER

[2] SOIL CLEAN UP BY IN-SITU AERATION .15. EFFECTS OF VARIABLE AIR-FLOW RATES IN DIFFUSION-LIMITED OPERATION [J].