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The wastes resulting from various activities combusting and processing chlorine containing organic materials have contaminated groundwater systems in many places over years. Prediction of distribution... and fate of those contaminants need to be obtained prior to designing an appropriate monitoring and remediation scheme. In this study, a solute transport model was developed to simulate the simultaneously occurring processes of multi-species chlorinated organic compounds which were transported through multi-layers of saturated porous media. The model simulation result of dioxin transport in groundwater indicated that there was no significant dioxin concentration throughout the model domain after being transported for 50 years. Chlorobenzene transport simulation representing other species of contaminants was performed due to the fact that in the contaminated site the chlorobenzene transport in groundwater most likely can transport dioxins and other chlorinated organic compounds. The results of this transport simulation demonstrated that fraction of organic carbon content of material (Foc), mass flux magnitude of contaminants, and contaminant discharge period were the most important parameters which affected the distribution of contaminant concentration. In addition, the profound change of the pollutant concentration profile was distinctly observed as the change of Foc was given. Thus developed model particularly can be used to carry out a preliminary estimation of the mass flux magnitude and the mass flux period.続きを見る
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