Geotechnical Engineering Journal of the SEAGS & AGSSEA ISSN 0046-5828
Vol. 46 No.3 September 2015
A Pollutant Migration Model Considering Solute Decay in Layered Soil
C. Yu1 and X. Q. Cai2
1College of Architecture and Civil Engineering, Wenzhou University, Wenzhou 325035, China
2College of Chemistry and Materials Engineering,, Wenzhou University, Wenzhou 325035, China
E-mail: geoyuchuang@163.com
ABSTRACT: Organic pollutant solute undergoes significant decay during the migration process in clay liner systems and foundation clay. Liner and foundation soil have layered properties. A one-dimensional computational model is established to calculate pollutant migration by considering the decay in layered soil medium. The separation of variable method is used to obtain the analytical solution. To verify the capability of the developed method, a typical example is illustrated by applying this model. The calculated results are compared with the results obtained from the GAEA GAEA Pollute v7. Consistent results demonstrate the reliability and validity of the proposed migration model, which can be a promising tool for landfill liner design when considering the organic pollutant decay.
KEYWORDS: Pollutant migration, Layered soil, Decay, Analytical solution, Numerical validation.
