What term describes the practice of determining the treatment method for water based on its intended final use?

The term that describes the practice of determining the treatment method for water based on its intended final use is "Fit for Purpose." This concept emphasizes tailoring the treatment processes to ensure that the water meets the quality requirements for its specific application, whether that be for irrigation, industrial use, or potable consumption. By assessing the intended use of the water, operators can select the most appropriate and efficient treatment technologies, ensuring that resources are used effectively and that the treated water meets all regulatory and safety standards for its specific end application. This approach enhances both water sustainability and operational efficiency in wastewater treatment.