Groundwater flow and contaminant transport modeling applications in urban area: scopes and limitations
2012
Seyf-Laye, Alfa-Sika Mande | Mingzhu, Liu | Djanéyé-Bouindjou, Gbandi | Liu, Fei | Lyutsiya, Kamaletdinova | Moctar, Bawa L. | Honghan, Chen
BACKGROUND: A three-dimensional groundwater flow model was used to evaluate the groundwater potential and assess the effects of groundwater withdrawal on the regional water level and flow direction in the central Beijing area. A program of groundwater modeling aimed at estimating current contaminant fluxes to the central area and site streams via groundwater was developed. RESULTS AND DISCUSSION: The conceptual model developed for the site attempted to incorporate a complex stratigraphic profile in which groundwater flow and contaminant transport is strongly controlled by a shallow aquifer. Here, a conceptual model for groundwater flow and contaminant transport in central Beijing is presented. CONCLUSION: Model simulations indicated that a sharp drop in the hydraulic head occurs at the center of the model area, which generates a cone of depression and a continuous decline of head with respect to time as a result of heavy groundwater abstraction.
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