What is Zero Liquid Discharge (ZLD), and why is it important for coolant and wastewater management?

Zero Liquid Discharge (ZLD) systems prevent any liquid waste from leaving a facility. This treatment approach recovers and reuses water from process fluids, coolants, and wastewater streams—helping manufacturers meet strict environmental regulations, reduce operating costs, and achieve sustainability goals while avoiding costly discharge violations.

PRAB provides complete ZLD solutions, including vacuum evaporators, ultrafiltration, and reverse osmosis systems. These technologies recover high-purity water from spent coolants and process fluids for reuse in production, minimizing freshwater demand and eliminating discharge-related risks. Explore related resources:

White Paper: Closed-Loop Wastewater Recycling

Case Study: Battery Recycler Achieves ZLD with PRAB Solutions

Benefits of PRAB Zero Liquid Discharge (ZLD) systems:

• Eliminates wastewater disposal by recovering up to 99% as reusable distillate
• Supports ISO 14001 and EPA compliance for discharge limits
• Reduces haul-away volumes and chemical treatment costs
• Enables closed-loop reuse of treated coolant or process water
• Ideal for water-scarce regions or facilities with high discharge surcharges

Q: Does ZLD make financial sense?

A: Yes. In many cases, ROI is achieved in 12–24 months by reducing disposal and chemical costs.