Difference Between ZLD and ETP Plants: Which One Do You Need?

As industries grow, so does the responsibility to treat wastewater in a sustainable and legally compliant manner. Two common treatment systems used in industrial settings are ETP (Effluent Treatment Plants) and ZLD (Zero Liquid Discharge) systems . While both are designed to manage and treat wastewater, their purpose, processes, and outcomes are different. In this blog, we’ll break down the key differences between ZLD and ETP systems, their working principles, and how to decide which is suitable for your facility. What is an ETP Plant? An Effluent Treatment Plant (ETP) is a wastewater treatment system specifically designed to treat industrial effluent—wastewater that contains toxic chemicals, oils, grease, heavy metals, and other harmful substances. The goal of an ETP is to treat this water so that it can be safely discharged into the environment or municipal sewer systems. Key Functions of ETPs: Remove harmful chemicals, suspended solids, and organic pollutants Neutralize pH and red...