Research progress on migration and transformation model of heavy metal pollutants

Abstract With the continuous development of the economy, the pollution of heavy metals to the environment is becoming more and more serious. It is more and more urgent to study the migration and transformation of heavy metals. This paper reviews the classification of heavy metal migration and transformation models, which can be divided into: chemical thermodynamic model, chemical reaction kinetics model, migration and transformation kinetic model (overall model, phase separation model, empirical model), and introduces the applications of the model in different aspects.