Zero Liquid Discharge (ZLD) System

Achieve Complete Wastewater Recovery with Paras Hydrotech’s Advanced ZLD Solutions

At Paras Hydrotech, we understand that water is not just a resource—it’s a critical asset. With increasing environmental regulations, rising water scarcity, and growing awareness of sustainable practices, Zero Liquid Discharge (ZLD) has become a necessity for industries rather than a luxury. Our ZLD systems, powered by Mechanical Vapor Recompression Evaporators (MVRE) and Agitated Thin Film Dryers (ATFD), offer the most energy-efficient and environmentally sound solution for treating and reusing industrial wastewater.

What is Zero Liquid Discharge (ZLD)?

Zero Liquid Discharge is a wastewater treatment process designed to eliminate liquid waste and recover clean water for reuse within the facility. In a ZLD system, the wastewater is concentrated and separated until only solids remain, ensuring that no liquid effluent is discharged into the environment. This not only meets stringent discharge regulations but also recovers valuable by-products and reduces freshwater dependency.

Our Technology: MVRE + ATFD Setup

1. MVRE – Mechanical Vapor Recompression Evaporator

The MVRE is the heart of the ZLD system. It works by evaporating the water from the wastewater using mechanical energy to recompress and reuse vapor, significantly reducing thermal energy requirements.

Key Benefits of MVRE:

• Lower Energy Consumption: Uses vapor compression instead of external steam, slashing energy costs.

• Closed-Loop System: Recycles heat internally, improving efficiency.

• Compact Design: Saves space and simplifies installation.

• Corrosion-Resistant Build: Built with high-grade SS or duplex materials for longer life.

2. ATFD – Agitated Thin Film Dryer

Once the wastewater has been concentrated to a slurry in the MVRE, the ATFD takes over to dry the concentrate, leaving behind only solid waste. The ATFD operates under vacuum or atmospheric conditions, depending on the feed characteristics.

Key Benefits of ATFD:

• Handles High TDS Effluent: Effective with high salt and chemical concentrations.

• Uniform Drying: Thin film technology ensures consistent drying and prevents fouling.

• Energy Efficient: Minimal utility consumption due to efficient heat transfer.

• Low Maintenance: Agitation prevents scaling and ensures smooth operation.

Why Choose MVRE + ATFD Combination?

When combined, MVRE and ATFD create a seamless, high-performance ZLD solution that:

• Cuts down on operational costs by reducing energy consumption.

• Increases water recovery efficiency up to 95–98%.

• Delivers dry solids suitable for disposal or further processing.

• Meets the strictest pollution control norms for industries.

Where Can It Be Used?

Our ZLD system with MVRE + ATFD setup is ideal for a wide range of industrial applications:

1. Textile & Dyeing Units

• Treats high TDS wastewater containing dyes, salts, and organic load.

• Allows recovery of clean water for reuse in processing.

2. Pharmaceutical & Chemical Plants

• Manages complex effluents with solvents and high COD levels.

• Recovers valuable salts and ensures regulatory compliance.

3. Distilleries & Breweries

• Handles vinasse and other organic-rich effluent.

• Reduces BOD/COD to negligible levels with minimal footprint.

4. Power Plants & Cooling Towers

• Treats blowdown water, removing silica and hardness.

• Reduces dependency on fresh water sources.

5. Tanneries, Electroplating & Heavy Industries

• Removes heavy metals and recovers usable water.

• Prevents groundwater contamination.

Why ZLD Matters for Wastewater Management

1. Environmental Compliance
   Government agencies like CPCB and SPCBs are mandating ZLD for various sectors. Failing to comply can lead to penalties, closures, and reputational damage.

2. Water Scarcity Management
   With water stress becoming a national concern, ZLD enables industries to recycle up to 98% of their water, reducing dependency on freshwater sources.

3. Sustainability Goals
   As ESG reporting gains importance, ZLD systems contribute to an organization’s green credentials and carbon footprint reduction.

4. Cost Savings Over Time
   While initial investment may seem high, low running costs, water reuse, and by-product recovery make ZLD economically viable in the long term.

Why Choose Paras Hydrotech?

At Paras Hydrotech, we don’t just sell equipment—we deliver end-to-end engineered solutions that ensure your ZLD goals are met with maximum reliability and minimum hassle.

What Sets Us Apart:

• Tailor-Made Systems: Every ZLD system is designed to meet your specific wastewater profile and space constraints.

• Energy Optimization: Our proprietary MVRE + ATFD configurations consume up to 40% less energy than conventional ZLD setups.

• Robust Design: Built using premium SS, duplex steel, and automation for long-lasting, maintenance-free operations.

• Expert Support: From design to commissioning and after-sales service, our experienced engineers ensure seamless project execution.

• Proven Track Record: Trusted by industry leaders across textiles, pharma, and food processing.

System Features Overview

Take the Next Step Toward Sustainability

Installing a ZLD system is no longer optional—it’s essential. With Paras Hydrotech’s MVRE + ATFD setup, you get a reliable, cost-effective, and sustainable solution that helps your industry comply with regulations, reduce environmental impact, and save on water costs.

Let’s Discuss Your Wastewater Challenges

Whether you’re planning a new facility or retrofitting an existing one, our team is ready to help. Contact Paras Hydrotech today for a customized ZLD proposal tailored to your needs.

📞 +91-9646396191
🌐 www.parashydrotech.com
✉️ info@parashydrotech.com