Zero Liquid Discharge (ZLD)

Achieve absolute water circularity. Master Zero Liquid Discharge.

CPCB defines ZLD as complete recycling of wastewater and conversion of all dissolved solids into solid residue. With over 100 years of engineering leadership, EcoProcess is your trusted partner in navigating ZLD complexities. We design complete turnkey ZLD plants that guarantee compliance while enhancing operational efficiency and resource recovery.

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Pain Points We Solve

Navigating the Complex Challenges 

Stringent regulations

CPCB, NGT, & SPCBs mandating ZLD for water-intensive industries

exorbitant energy costs

90-120 kJ per liter, OPEX up to 145 INR/m3 for pulp and paper.

scaling, fouling & downtime

High salt concentration causes frequent scaling in evaporators.

complex brine & salt handling

Final stage transformation of brine into solid is a critical bottleneck.

Construction

Masonary Gallery

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Construction Management

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Civil Engineering

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Electrician Job

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Construction Laboring

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Plumbing

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Masonry

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Glazing

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Carpentry

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Painting

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Ironwork

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Elevator Installation

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Outsourced HR

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Our Approach

EcoProcess Solutions

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High-Efficiency Evaporation with MVR & TVR

84-93% energy savings. MVR equivalent to 30+ effect evaporator. Payback 1-2 years.
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Robust ATFD for Salt Handling

 

Dry solid salt cake with 10-15% moisture. Minimal fouling, high uptime.     
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Integrated Heat Recovery

Analysis & strategic heat reuse to minimize thermal energy demand.
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Complete Solvent Recovery

Full recovery of organic solvents creates an additional revenue stream.

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Equipment

Products for ZLD Industry

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MEE (Falling Film, Rising Film, Forced Circulation) with MVR/TVR 

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Shell & Tube, Corrugated, Spiral Heat Exchangers

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Integrated Controls & Automation

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Dry Screw Vacuum Pumps 

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Regulatory Compliance

Meeting ZLD Industry Standards

CPCB

Guidelines

NGT

directives

TNPCB standards

600+ Clients

30+ countries
years

99+

90-98%

Water Recovery Rate

years

99+

~11.4 KWh/M³

Spaecific Energy Consumption, evaporated with MVR

years

99+

Max Uptime

Robust design with lifecycle support

years

99+

steam consumption

MVR = 62.9 lbs water/lb steam vs. 7.6 for 5-effect TVR 

Case Study

Transforming the tirupur textile cluster

 

Challenge:

2011 Madras High Court ZLD mandate led to closure of non-compliant units. 

 

Solution:

RO + MEE with MVRE + ATFD crystallizers for complete ZLD. 

 

Results:

 

Challenge:

A leading pharmaceutical company in Hyderabad needed to improve solvent recovery from their API drying process while meeting strict emission norms.

 

Solution:

Ecoprocess installed an integrated ATFD system with solvent recovery.

 

Results:

 

95%

Water recovery from RO

0.5-1%

reject reduced & fully solidified

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Questions

Frequently Asked Questions

How does EcoProcess support cGMP validation?

We design all pharmaceutical equipment according to cGMP principles with comprehensive IQ/OQ documentation and pilot plant for PQ validation.

What materials do you use for product contact parts?

Standard material is SS316L for corrosion resistance and cleanability. Hastelloy available for corrosive/high-temperature applications.

Can your systems handle flammable solvents like IPA?

Yes, we engineer solutions meeting ATEX safety standards with certified components and instruments.

Validate Your Process. Ensure Compliance. Accelerate Your Success.

Leverage our 100 years of engineering expertise and state-of-the-art pilot plant to design and validate the perfect solution for your ZLD industry.