Wastewater reuse is the process of treating wastewater to remove contaminants and pollutants in order to make it suitable for various non-potable applications such as irrigation, industrial processes, and toilet flushing. This practice helps in conserving freshwater resources and reducing pollution of natural water bodies. Wastewater reuse is becoming increasingly important in regions facing water scarcity or pollution issues, and various technologies and treatment processes are used to ensure the safe and sustainable reuse of wastewater. Additionally, regulations and guidelines are in place to ensure that the reused water meets the necessary quality standards for its intended use.