What Is Zero Liquid Discharge (ZLD) and How Does It Work?
Published August 13, 2026. Last updated August 13, 2026. Quick Answer Zero liquid discharge (ZLD) is a wastewater management approach in which a manufacturing facility treats and recovers essentially all of its process wastewater on site, so no liquid effluent leaves the plant as discharge. ZLD systems typically combine pre-treatment (ultrafiltration, oil-water separation), concentration (reverse osmosis), and vacuum evaporation to […]
