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Leading Manufacturer, Supplier & Retailer of Zero Liquid Discharge Plant (Zld).
Zero Liquid Discharge (ZLD) Treatment Plant Manufacturer
What is Zero Liquid Discharge (ZLD)?
Zero Liquid Discharge (ZLD) is an advanced wastewater treatment approach that ensures no liquid
waste leaves your facility. It’s ideal for industries facing water scarcity, high discharge costs, or
strict environmental regulations.
ZLD may not be essential for every facility—but where it is required or makes environmental and
financial sense, it plays a powerful role in turning wastewater into reusable water and manageable
solids.
How Does a ZLD System Work?
At its core, a ZLD system treats wastewater, recovers clean water for reuse, and removes
contaminants as solid waste. Here’s a simple breakdown:
1 Pretreatment & Conditioning
Removes suspended solids, metals, hardness, and silica
Uses chemicals to bind fine particles and help them settle
Produces sludge that's easy to manage
2 Phase-One Concentration
Uses Reverse Osmosis (RO) and Brine Concentrators
Recovers 60–80% of water before evaporation
Prepares high-salinity brine for final treatment
3 Evaporation & Crystallization
Evaporators boil off remaining water
Crystallizers turn dissolved salts into dry solids
Clean water is recovered for reuse
4 Reuse & Solid Waste Handling
Treated water is stored and reused in industrial processes
Solids are dewatered and sent for disposal or reuse
What’s Included in a ZLD System?
Every ZLD system is custom-built, but typically includes:
Clarifier or reactor to remove hardness and metals
Chemical dosing system for coagulation/flocculation
Filter press for sludge dewatering
Ultrafiltration (UF) membranes
Reverse osmosis (RO) system
Brine concentrator
Evaporator & crystallizer
Recycle water tank & solid handling unit
Benefits of a ZLD System
Up to 95% water recovery for reuse
Meets stringent discharge norms
Extracts useful byproducts like salts and brines
Reduces environmental impact
Converts waste into manageable solid form
Is ZLD Right for Your Industry?
ZLD is most beneficial for:
Power Plants
Textile & Dye Industries
Pharma & Chemical Units
Refineries
Any facility facing high water recovery needs
Why Choose WaTech?
With 27+ years of expertise, WaTech has been a trusted name in water treatment solutions. We
offer:
Fully customized ZLD plant designs
Expert engineering and support
Reliable systems built to last
Mrs. Ekta (WaTech RO System (I) Pvt. Ltd)
G-10, Universal Business Hub, Nr. Milan Talkies, N.H 6, Surat Road, Bardoli, Gujarat - 394601
https://www.watechsolutions.in
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