A zero liquid discharge (ZLD) system is a wastewater treatment process that eliminates liquid waste and converts it into recycled water and solids. The process uses a series of advanced water treatment technologies, including:
Membranes like ultra-filtration filter wastewater, separating clean water for reuse and concentrating polluted water for further treatment
A brine concentrator uses heat and vapor compression to turn the concentrated water into a wet sludge
High pressure steam converts the sludge into solid waste, leaving clean water that can be reused
ZLD systems are used in a variety of industries, including power plants, oil and gas, and chemicals. They are beneficial because: