Evaluation of the relationship between intensity and effluent temperaturein a solar still

In this research, the exit treated wastewater from the gravity filtration unit, mechanical andchemical treatment unit, biological treatment unit and finally UV disinfection treatment unit entersto a solar desalination unit. Wastewater evaporation process is performed in this unit. In this study,in order to increase the UV waves in solar energy, nano-flooring has been used on the floor of thesolar pond. The laboratory results show that the average difference between the experimental dataand the theory for simple coating, coating made of zinc oxide nanoparticles and coating made ofaluminum oxide nanoparticles is equal to ۲%, ۲.۳% and ۱.۶%, respectively. The laboratory resultsshow that the maximum and minimum temperature difference of the first layer and the last layerof wastewater are in April and March, respectively۱