By summarizing the interaction mechanism of sediment pollutants, the advantages and disadvantages of different sediment models for a certain type of pollutants (heavy metals, nitrogen, phosphorus, etc.) are discussed. ) and its application scope are evaluated and analyzed, which further reveals the mechanism of migration and transformation of pollutants among water, suspended sediment and sediment, and summarizes the research progress of sediment water quality model.
With the rapid development of economy and the continuous advancement of modernization, water pollution has become an environmental problem that cannot be ignored, especially the pollutants in water sediments may be re-released into overlying water under different hydrological conditions, resulting in water pollution. The sediment water quality model can predict the migration and transformation law of sediment pollutants in water and provide reference for the prevention and control of pollutants.