ABSTRACT
ABSTRACT: The numerical simulation of groundwater was a necessary tool for the groundwater movement research and water resources evaluation. Through three-dimensional numerical simulation modeling of groundwater flow and the solute transport modeling in the upper of Chaobai river alluvial fan in Beijing, this research predict and evaluate that the construction of recycled water plant will bring about direct effect and indirect harm to groundwater environment Taking COD as the main pollution index, the model predicted that the concentration of pollutant COD in groundwater is far less than drinking water standards, after recycled water plant used for 30 years later. Therefore, the use of recycled water basically has no impact on the surrounding groundwater environment.
