True ZLD wastewater treatment is required by environmental requirements in a variety of industries, including electricity, manufacturing, refining, mining, pulp and paper, and chemical processing. This means that all industrial effluent at a location is converted to dry solids before being recycled or disposed of. The factory recycles any usable water collected during the waste … Continue reading The Advantage of Mixed Salt Crystallizers in Zero Liquid Discharge (ZLD) Wastewater Treatment Systems