Most methods for treating pesticide wastewater use physical and chemical methods, including adsorption, extraction, hydrolysis, oxidation, membrane separation, etc. Among them, thermal technology, as one of the supporting technologies for zero discharge of wastewater, mainly includes membrane distillation (MD), flash evaporation (MSF) technology, multi-effect evaporation (MED) technology, mechanical compression evaporation (MVR) and other technologies. Thermal method is to use heating and concentration to remove the light components of the solution in the form of fractions, and the heavy components are concentrated to increase the concentration of the solution.