ZLD system manufacturers
Zero Liquid Discharge (ZLD) systems are advanced wastewater treatment solutions designed to eliminate all liquid waste from industrial processes, ensuring that no effluent is discharged into the environment. Our ZLD systems are designed to ensure 100% water recovery with zero discharge, meeting stringent environmental regulations and promoting sustainable water management.
The process involves the treatment and recovery of all wastewater to extract clean water for reuse and convert the remaining waste into solid residue for safe disposal. ZLD systems are essential for industries such as textiles, pharmaceuticals, chemicals, power plants, and dye manufacturing where environmental compliance and water conservation are critical.
Working Principle of ZLD system
Polishing
- Two-pass RO system achieves 99% salt rejection
- Continuous electrodeionization (CEDI) for ultra-pure water
Pre-treatment
- Multimedia filtration removes suspended solids (5-10 micron)
- Chlorine removal via activated carbon bed
Reject Management
- Concentrate treated via evaporation crystallizers for ZLD compliance
Primary TOC Removal
- Oxidation: UV/H₂O₂ breaks complex organics into smaller molecules
- Adsorption: Jacobi GAC removes 90-95% of residual organics
- Ion Exchange: INDION SBA resins eliminate charged organic ions
Technical Specifications
| Parameter | Specification |
|---|---|
| Capacity | 1 KLD to 1000 KLD (customizable) |
| Water Recovery | 90–95% |
| Feed Flow Rate | Up to 1000 m³/day or as per requirement |
| Treatment Stages | Primary, Membrane, Evaporation, Drying |
| Material of Construction | Stainless Steel, FRP, Mild Steel |
| Automation | PLC/SCADA-based |
| Power Requirement | Depends on capacity and process design |
| Installation Type | Prefabricated, skid-mounted, containerized |
| Applications | Pharma, chemical, textile, steel, paper, distillery, etc. |
Key Advantages of ZLD system
- 100% Liquid Waste Recovery – Ensures no discharge to the environment.
- Customized Modular Design – Scalable units to suit specific flow and contaminant load.
- High Recovery RO Systems – Reduces the volume for evaporation.
- Energy-Efficient Evaporators & Crystallizers – Lower operational costs.
- Robust Construction – Made with corrosion-resistant materials like SS 316L.
- Automation & Monitoring – PLC/SCADA-based control system with real-time data.
- Compliance Ready – Meets CPCB, SPCB, and MoEF environmental standards.
- Low Sludge Volume – Minimizes waste handling and disposal cost.
