Zero Liquid Discharge (ZLD) Systems
Environmentally responsible solutions that ensure complete wastewater recycling, eliminating liquid discharge and maximizing water recovery for industries.
Zero Liquid Discharge (ZLD) Systems are advanced wastewater treatment solutions designed to recover maximum water and completely eliminate liquid discharge from industries. Instead of releasing wastewater into the environment, ZLD systems treat,
recycle and convert it into reusable water and dry solids. With increasing environmental regulations, water scarcity, and rising disposal costs, ZLD technology helps industries achieve sustainability, compliance, and cost savings while protecting natural resources.
Why Choose a Zero Liquid Discharge (ZLD) Systems?
Prevents water pollution
Reduces freshwater consumption
Ensures compliance with environmental norms
Recovers valuable salts and by-products
Eliminates discharge penalties and risks
Supports sustainable industry operations
Frequently Asked Questions (FAQ)
What is a Zero Liquid Discharge (ZLD) system?
A Zero Liquid Discharge system is an advanced wastewater treatment process that treats industrial effluent, recovers reusable water, and converts remaining contaminants into dry solids — ensuring no liquid is discharged into the environment.
Why is ZLD important for industries?
ZLD helps industries:
- Meet environmental regulations
- Reduce freshwater consumption
- Prevent groundwater and surface water pollution
- Lower wastewater disposal costs
- Improve sustainability and brand reputation
How does a ZLD system work?
A ZLD system typically includes:
- Pre-treatment
- Membrane filtration (UF/RO)
- Evaporation and crystallization
- Condensate recovery
The process recovers clean water for reuse and leaves only dry, manageable solids.
Which industries require ZLD?
ZLD is commonly used in:
- Textiles and dyeing
- Pharmaceuticals and chemicals
- Power plants and refineries
- Food & beverage manufacturing
- Steel and metal processing
- Tanneries and paper mills
- Desalination and municipal utilities
Any industry with complex, high-TDS wastewater benefits from ZLD.
Is ZLD mandatory?
In many regions, ZLD is mandatory for selected sectors where wastewater is highly polluting or scarce water resources must be protected. Requirements depend on local pollution control board or government regulations.