Zero Liquid Discharge (ZLD) Systems

What It Does

Sarvo’s ZLD Plants with Mechanical Vapor Recompression MVR Technology, powered by evoblue, provide a comprehensive solution for industrial wastewater management by eliminating liquid discharge and recovering nearly all water for reuse. The process begins with pre- treatment stages like ultrafiltration UF) and reverse osmosis RO) to remove suspended solids, organics, and dissolved salts, concentrating the wastewater into a high-TDS brine. The core MVR evaporator then compresses the vapor generated from the brine, raising its temperature and reusing it as the heating source, which drastically reduces external energy needs. This is followed by crystallization to solidify remaining contaminants into manageable solids, ensuring zero liquid effluent.

evoblue stands out as an innovative, optimized thermally efficient design that achieves the lowest energy consumption in the industry. By operating under vacuum, it lowers the boiling point of water to below 50°C, enabling up to 70% energy savings compared to conventional evaporators. Its advanced heat recovery mechanisms and anti-scaling features minimize fouling, extend equipment life, and support seamless integration with MVR for superior performance.

The system handles complex effluents with high COD, BOD, and salts, producing distillate with conductivity below 10 µS/cm suitable for boiler feed, cooling, or process reuse. Fully automated with AI-driven controls, it monitors parameters in real-time for predictive maintenance and optimization. Ideal for water-stressed regions, this technology complies with regulations like India’s CPCB norms and global standards, transforming waste into resources while cutting operational costs and promoting a circular economy.