Zero Liquid Discharge (ZLD) is a transformative water treatment process that eliminates liquid waste by recovering and recycling nearly all wastewater. Using advanced techniques like reverse osmosis, evaporators, and crystallizers, ZLD converts industrial effluents into reusable water and solid residues. This sustainable system reduces freshwater usage, minimizes environmental harm, and ensures regulatory compliance. Ideal for industries like power, chemicals, and textiles, ZLD promotes eco-friendly operations and supports global water conservation efforts.