Zero Liquid Discharge Plant for Petrochemical Industry

Why ZLD for Petrochemical Plants?

Petrochemical processes generate large volumes of wastewater containing hazardous organics, salts, and solvents. A ZLD plant ensures no liquid waste is discharged, supporting sustainability, regulatory compliance, and resource recovery.

ZLD System Workflow for Petrochemical Wastewater

1. Wastewater Analysis & Segregation

   • Detailed characterization of wastewater streams (pH, salinity, organics, heavy metals)

   • Segregation of chemical streams for optimized treatment

2. Pretreatment

   • Removal of oil, grease, and suspended solids to protect downstream units

3. Chemical Recovery

   • Integration of systems to recover and reuse solvents, acids, or other valuable compounds

4. Biological Treatment (if required)

   • Breakdown of biodegradable organic pollutants using aerobic/anaerobic systems

5. Advanced Filtration

   • Ultrafiltration (UF) and Reverse Osmosis (RO) to remove dissolved contaminants and reduce TDS

6. Evaporation & Crystallization

   • Final treatment of RO reject using evaporators and crystallizers to extract salts and produce solid waste

7. Brine & Solid Waste Management

   • Safe disposal or potential reuse of solid residues or recovered materials following local regulations

8. Heat Recovery

   • Efficient energy reuse to lower operational costs and improve system efficiency

9. Automation & Monitoring

   • Real-time monitoring and control to maintain performance and ensure regulatory compliance

Key Benefits

• 100% elimination of liquid discharge

• Reduces environmental risk and liability

• Recovery of chemicals, water, and salts

• Compliance with CPCB, SPCB, and other statutory bodies

• Demonstrates ESG leadership and sustainable operations

Hydro Water Industries – ZLD Experts You Can Trust

With decades of expertise in water treatment and a specialized focus on industrial ZLD systems, Hydro Water Industries delivers customized, cost-effective, and efficient solutions for the complex needs of the petrochemical industry.

Contact us today for a consultation on building a tailored ZLD system that meets both your technical and environmental goals.