Efficient Evaporation Solutions - Zero Liquid Discharge

Zero Liquid Discharge (ZLD) in the Water Industry

Zero Liquid Discharge (ZLD) is an advanced water treatment approach aimed at eliminating wastewater discharge, ensuring complete water recovery, and minimising environmental impact. It is particularly crucial in industries such as pharmaceuticals, textiles, petrochemicals, and wastewater treatment, where stringent regulations demand sustainable water management.

ZLD systems typically involve multiple stages, including pre-treatment, membrane filtration (such as reverse osmosis), evaporation, and crystallisation. Advanced evaporators, like Mechanical Vapor Recompression (MVR) and Falling Film Evaporators, enhance energy efficiency by recycling thermal energy, making ZLD more economically viable. Agitated Thin-Film Dryers (ATFD) and Forced Circulation Evaporators help manage high-salinity brines, converting them into solid waste for safe disposal or resource recovery.

Implementing ZLD ensures compliance with environmental norms, reduces freshwater dependency, and facilitates resource recovery, such as salts and valuable byproducts. Challenges such as high energy consumption and operational costs persist. Innovations in hybrid evaporation technologies and nanofiltration are making ZLD more feasible for a broader range of industries. These are overcome with TVR or MVR mode of operation

In the water sector, ZLD plays a critical role in sustainable wastewater management, protecting ecosystems, and promoting circular economy principles. As regulations tighten worldwide, ZLD adoption is expected to grow, driving advancements in energy-efficient separation technologies.

Information

• Location: Mumbai, India

Attached link

Media

Taxonomy

• Water Recycling
• Produced Water
• Zero Discharge
• Brine Discharge Modeling & Analysis
• Evaporation Plants
• Zero liquid discharge (ZLD) technology
• Oil-associated Waters And Brines