MODELING THE EFFECTS OF PLANTS ON THE BIOREMEDIATION OF CONTAMINATED SOIL AND GROUND-WATER

被引：29

作者：

DAVIS, LC

ERICKSON, LE

LEE, E

SHIMP, JF

TRACY, JC

机构：

[1] Hazardous Substance Research Center, Kansas State University, Manhattan, Kansas, 66506, Ward Hall

来源：

ENVIRONMENTAL PROGRESS | 1993年 / 12卷 / 01期

关键词：

D O I：

10.1002/ep.670120112

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Plants have the potential for aiding in situ remediation of contaminated soil and groundwater by promoting microbial growth in the rhizosphere. Microbial populations vary in response to the presence of oxygen, water and metabolizable carbon sources. Plants are able to provide a favorable environment for microbe growth by providing a plant pathway for oxygen transfer to the soil, transferring water from saturated to unsaturated soil, and supplying supplemental substrate in the form of root exudates and decaying root hairs. Models of the physical, chemical, and biological relationships in the rhizosphere are reported. Simulation results are presented for a hypothetical vegetative buffer zone over a shallow aquifer. The fate of atrazine is simulated in order to investigate the effects of rainfall, evapotranspiration, atrazine uptake by plants, and atrazine adsorption to root surfaces on atrazine concentration at the downstream edge of the vegetative buffer zone.

引用

页码：67 / 75

页数：9

共 42 条

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