Research On Spatial And Temporal Evolution Of Organic Pollutants In Surface And Groundwater Of Laixi

With the rapid development of global social economy,human beings heavily rely on the water resources,as a result,water ecosystem and water resources issues are more and more prominent;pollutant leakage of the pollution sources occurred by many industrial and mining enterprises under the improper conditions deeply influenced the river safety and water environment security.Selecting the typical inland water environment areas in blue economic zone of Shandong Peninsula,establishing the quantitative water pollution analysis coupling model of solute transport equation and unsteady seepage flow equation,this paper carries out the inversion and prediction on the time and spatial response pattern of polluted important water body of river and lake in study areas under the condition of rainfall runoff and the leakage of pollution sources in the study areas,and put forward the effective prevention and control measures on the regional water pollution control work to provide valuable scientific and technical support for the protection of water ecology and water environment during the development and construction of the study area.The main research contents and achievements include the following aspects:(1)The organic pollutant transport model is established in the research area.An in-depth and systematic analysis of the movement characteristics of organic pollutants in the whole process is carried out.A theoretical conceptual model and a mathematical model for describing its motion characteristics are established.(2)Analysis and study of surface pollution transport under rainfall runoff conditions.Selecting the typical inland water environment areas in blue economic zone of Shandong Peninsula,establishing the quantitative water pollution analysis coupling model of solute transport equation and unsteady seepage flow equation,this paper carries out the inversion and prediction on the time and spatial response pattern of polluted important water body of river and lake in study areas under the condition of rainfall runoff and the leakage of pollution sources in the study areas.(3)Analysis and study of underground organic pollutant transport.Texture prolapse in pollution to the movement,underground horizontal migration model,on the basis of combining with the groundwater flow field,dispersion effect,the influence of such factors as quality in different stages of the analysis and research of sports ground pollution concentration attenuation variation law with time and space.(4)Division of organic pollution risk areas.Establish an organic pollution risk analysis model.The concentrations of organic pollutants in different functional areas are determined in different risk grade zones.To put forward effective prevention and control measures for the prevention and control of regional water pollution.To provide valuable scientific and technical support for water ecology and water environment protection in the development and construction of the research area.