Investigation into municipal waste leachate in the unsaturated zone of red soil

摘要

There are many organic pollutants in the monitoring wells at Taichung sanitary landfill. The objectives of this study were to understand the leachate transport phenomena in this specific site, to identify the parameters, and to simulate the mathematical transport model of organic maters of leachate plume by SEFTRAN. The model uses the Galerkin's finite element method and its mechanism includes convection, dispersion, retardation, and biological decay. Consequently, this study investigated not only on the parameters of convection but also on the parameters of dispersion, retardation, and decay.