SIMPLE DERIVATION OF THE RETARDATION EQUATION AND APPLICATION TO PREFERENTIAL FLOW AND MACRODISPERSION

被引：34

作者：

BOUWER, H ^{[1
]}

机构：

[1] UNIV ARIZONA, TUCSON, AZ 85721 USA

来源：

GROUND WATER | 1991年 / 29卷 / 01期

关键词：

D O I：

10.1111/j.1745-6584.1991.tb00495.x

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The equation to calculate the retardation factor of sorbing chemicals moving in aqueous solution through aquifers and vadose zones is derived using a linear sorption isotherm and a mass-balance approach. The procedure is very simple and clearly illustrates the roles of porosity and water content, including those for saturated flow, unsaturated flow, and preferential flow or other systems with both mobile and immobile phases of the water. Applications of the equation to preferential flow in the vadose zone and macrodispersion in a layered aquifer are illustrated with numerical examples for hypothetical cases.

引用

页码：41 / 46

页数：6

共 36 条

[1] SOIL SOLUTE CONCENTRATION DISTRIBUTIONS FOR SPATIALLY VARYING PORE WATER VELOCITIES AND APPARENT DIFFUSION-COEFFICIENTS [J].