Study On Groundwater Solute Transport In A Chemical Industry Park In Northeast China Based On Visual MODFLOW

Groundwater,like surface water,plays an important role in our production,life and socio-economic development.It is an important component of freshwater resources and an important source of water for biological and industrial water use.However,with the improvement of the level of science and technology,the advancement of industrialization,the development of mechanization and the lack of awareness of human water conservation,the voluntary discharge of domestic water and industrial wastewater,as well as the deep processing of energy,the exploitation of minerals and the continuous over-exploitation of groundwater have caused groundwater resources.Serious pollution.Groundwater resources have been seriously polluted,and the development of industry and the increase of population have led to an increasing demand for water.How to predict and control groundwater pollution in the case of such water shortage and serious pollution has become an urgent problem to be solved.Through the exploration,drilling,hydro geological tests,logging,and water quality analysis of the chemical industrial park,obtained the Hydro geological related parameters,used Visual mod flow to establish a 3D visualization model,This simulation uses the groundwater level line actually measured in June 2018 as the initial flow field,and the recognition period is set at 365 d.The parameters of the model are repeatedly adjusted and optimized according to the actual conditions of the actual hydro-logical ground in the study area until the simulation.The flow field coincides with the actual measured initial flow field.and through the MT3 DMS solute transport module,simulated and predicted the pollutant transport law of characteristic pollutants' chemical raw material leakage and sewage leakage under normal conditions,under abnormal conditions and under the conditions of tank fire and explosion risk.It is concluded that,under normal or abnormal conditions,the concentration of pollutants may increase due to leakage of pollution sources in the first year.But the concentration will increase with the flow of groundwater and gradually be diluted with time.Basically,it will return to its natural state.