Research on the Mechanism of Groundwater Pollution Transport Based on Tracer Test
The dispersion test is mainly based on the principle of solute diffusion and mechanical dispersion in porous media.It is an im-portant method for studying the migration process of pollutants in groundwater.Taking the dispersion test carried out in a hydrogeological spe-cial investigation project of a suspected contaminated plot in Lianjiang,Guangdong Province as an example,this paper uses the theoretical method of radial convergent hydrodynamic dispersion experiment to conduct a field hydrodynamic dispersion test of the Quaternary loose sedi-mentary layer.The flow direction and velocity of groundwater in representative sections are determined.The stable radial seepage field solute transport model and finite difference numerical technology are used to solve the hydraulic dispersion coefficient of solute migration,providing hydrogeological data for environmental impact assessment.