Zero Liquid Discharge (ZLD) Systems: Design Considerations and Importance of Water Quality Monitoring
Zero Liquid Discharge (ZLD) Systems: Design Considerations and Importance of Water Quality Monitoring https://drive.google.com/file/d/186K7o5gnOQ-ZBkcgWjpaBFYUZ7DtuwtY/view?usp=sharing Resource Recovery and Waste Reduction through Zero Liquid Discharge (ZLD) Systems A zero liquid discharge (ZLD) system is a process that reduces industrial waste generation while recovering resources that are present in wastewater. These resources can include carbon, water, nutrients, heavy metals and energy. WATERMAN ENGINEERS AUSTRALIA A ZLD system typically uses a combination of pre-treatment, concentration and evaporation to produce a solid product suitable for disposal. The first step is usually a reverse osmosis (RO) process to concentrate dissolved substances. This method also allows the production of ultrapure water. The next step in ZLD treatment is to evaporate the waste liquids. This can be done with thermal processes or a high-pressure distillation unit to produce a solid product. The re...