Zero Liquid Discharge (ZLD) Plant
A Zero Liquid Discharge (ZLD) Plant is an advanced wastewater treatment system designed to completely eliminate liquid waste discharge from industrial processes. It ensures that nearly all wastewater is treated, recovered, and reused, leaving behind only solid residues for safe disposal or recovery. Our ZLD systems are engineered to achieve up to 95–98% water recovery, significantly reducing freshwater consumption and minimizing environmental impact. By integrating advanced technologies such as Reverse Osmosis (RO), evaporation, and crystallization, the system efficiently separates clean water from dissolved solids. These systems help industries comply with stringent pollution control regulations while promoting sustainable water management practices. We offer customized ZLD solutions tailored to the specific needs of industries such as textile, chemical, pharmaceutical, and process manufacturing. A ZLD plant is the ideal solution for organizations aiming for zero discharge, maximum water reuse, and environmental compliance.
ZLD System Components
A typical ZLD system consists of the following key components:
- High-Recovery RO System
Recovers maximum reusable water and reduces load on evaporator - Mechanical Vapor Recompression (MVR) / Multiple Effect Evaporator (MEE)
Concentrates high TDS reject stream efficiently - Agitated Thin Film Dryer (ATFD) / Crystallizer
Converts concentrated brine into solid salts - Condensate Polishing Unit (CPU)
Ensures high-quality treated water suitable for reuse
ZLD Plant Output
- Distillate Water: <50 ppm TDS (suitable for process reuse)
- Solid Waste: Dry salts for safe disposal or recovery
Benefits of Zero Liquid Discharge System
- Complete elimination of liquid discharge
- Up to 70% reduction in water procurement cost
- Compliance with CPCB / SPCB environmental norms
- Maximum water recovery and reuse
- Reduced environmental impact