Zero Liquid Discharge Plants

ZLD Plant Manufacturer in India | Zero Liquid Discharge Systems | Shail Vac Engineers
ZLD Plant Manufacturer in India

Zero Liquid Discharge Plants for Industrial Water Recovery

Industrial wastewater treatment engineered for water recovery, salt management and discharge compliance.

Shail Vac Engineers builds ZLD systems for industries where wastewater cannot be discharged and must be fully treated, reused or recovered. Our engineering approach focuses on process behaviour, not just equipment selection.

95 – 99% Water recovery
500+ Evaporation plants
37+ Years of experience
20+ Countries
Multiple Effect Evaporator based Zero Liquid Discharge plant MEE / MVR-based Zero Liquid Discharge plant
The Industrial Problem

The wastewater problem we solve

Industries today are squeezed between rising water costs and tightening discharge limits. Shail Vac Engineers designs ZLD systems that solve these problems through integrated evaporation and recovery technology.

!High TDS wastewater discharge
!Rising water consumption cost
!CPCB / PCB compliance pressure
!Inefficient evaporation systems
!High steam consumption in old plants
!Zero liquid discharge requirements
The Concept

What is a ZLD plant?

A Zero Liquid Discharge plant ensures no liquid waste leaves the industrial facility. Instead of discharge, wastewater is treated, concentrated, evaporated and condensed, then recovered as reusable water. The remaining solids are handled separately.

Zero Liquid Discharge Process Flow Wastewater High TDS in Treated Pre-treatment Concentrated RO / MEE Evaporated MEE / MVR Condensed Vapour Recovered Reusable Water 95–99% Salt / solids handled separately (ATFD)

ZLD process flow, wastewater to reusable water with salt and solids recovered separately

Core Technologies

ZLD technologies we engineer

Every plant combines the right mix of evaporation and drying technology, selected against energy cost, effluent chemistry and recovery target.

MEE
Multiple Effect Evaporator

Multi-stage evaporation system for efficient concentration and recovery of high-TDS effluent streams.

MVR
Mechanical Vapor Recompression

Energy-efficient evaporation that recompresses vapour to reuse its latent heat, sharply reducing steam consumption.

ATFD
Agitated Thin Film Dryer

Final drying stage for salt and solid recovery, turning concentrated reject into a handleable dry product.

Falling Film & Forced Circulation
High-scaling effluent

For high scaling, high TDS and complex effluent conditions where standard evaporation struggles.

Key Benefits

What a ZLD system delivers

95–99% water recovery

Recover almost all water from wastewater streams and return it to process.

Reduced liquid discharge

Cut industrial liquid discharge toward zero, meeting strict effluent limits.

Salt & solid recovery

Recover salts and solids as dry product instead of disposing of liquid reject.

Lower fresh-water dependency

Reduce reliance on fresh water sources and the cost that comes with them.

CPCB / PCB compliance support

Designed around regulatory discharge norms to support long-term compliance.

Sustainability & efficiency

Improved plant sustainability and overall operating efficiency.

Industries & Clients

Trusted across process industries

From pharma cleanrooms to refinery vacuum columns, our ejectors and vacuum systems run in some of the most demanding plants in the world. Every industry brings different vapour loads and corrosion data, so each system is engineered to its duty.

Petrochemicals and Refineries

Petrochemicals & Refineries

Chemical

Chemical

Pharmaceuticals

Pharma

Agro Chemicals

Agro Chemicals

Textile

Textile

Edible Oil

Edible Oil

Food and Dairy

Food & Dairy

Common Effluent Treatment Plant

CETP