A Zero Liquid Discharge (ZLD) system is an advanced water treatment process designed to eliminate wastewater discharge from industries. It recycles and purifies all wastewater, ensuring that no liquid waste is released into the environment. The process involves pretreatment, evaporation, condensation, and crystallization, leaving behind only solid residues. ZLD is widely used in industries like power plants, textiles, and chemical manufacturing to comply with environmental regulations, conserve water, and reduce pollution. In India, ZLD manufacturers are developing efficient systems to help industries manage water resources sustainably and minimize their environmental impact while cutting down water consumption costs.