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Optima Water Solutions designs and installs Zero Liquid Discharge (ZLD) Plants in Bengaluru, enabling industries to achieve complete elimination of liquid effluent discharge. Mandatory for textile, distillery, sugar, tannery, and other industries under CPCB ZLD mandates, our ISO 9001:2015 certified systems combine advanced membrane technology with thermal evaporation to recover maximum water and produce dry solid waste only.
What is a Zero Liquid Discharge Plant?
Zero Liquid Discharge (ZLD) is a water treatment process in which all wastewater is treated and recycled — no liquid effluent is discharged to the environment. The process concentrates all dissolved salts and contaminants into a dry solid (cake) that can be safely disposed of or further processed.
A complete ZLD system typically combines: Effluent Treatment Plant (ETP) → Reverse Osmosis (RO) → Multiple Effect Evaporation (MEE) or Mechanical Vapour Recompression (MVR) → Agitated Thin Film Dryer (ATFD) or Spray Dryer.
The CPCB and State PCBs have mandated ZLD for highly polluting industries including textile dyeing, distilleries, sugar mills, tanneries, and pharmaceutical bulk drug manufacturing units across India.
Zero Liquid Discharge Plant in Bengaluru — Why It Matters
Bengaluru's industrial base — spanning Peenya Industrial Area, Electronic City, Whitefield IT Zone — continues to expand, and with it the need for dependable ZLD capacity that meets local discharge norms. Karnataka State Pollution Control Board (KSPCB) mandates STPs for large residential projects and ETPs for all category industries in Bengaluru.
We work directly with facility owners, developers, and industrial operators in Bengaluru to deliver ZLD systems that are correctly sized, properly permitted, and easy to maintain long-term.
Key industrial areas we serve in Bengaluru:
Regulatory Note: Karnataka State Pollution Control Board (KSPCB) mandates STPs for large residential projects and ETPs for all category industries in Bengaluru.
Our 4-Step Process — From Design to Handover
1
Effluent Characterisation
Detailed lab analysis. TDS, COD, BOD, heavy metals, conductivity. Treatability study to determine optimal ZLD train.
2
ZLD Train Design
ETP + RO + MEE/MVR + ATFD configuration. Mass and energy balance. Detailed engineering package.
3
Supply & Installation
In-house fabricated ETP and RO components. MEE/ATFD from specialist partners. Full project management.
4
Commissioning & Compliance
Performance testing to SPCB satisfaction. Documentation for ZLD compliance certificate. Operator training.
Why Choose Optima Water Solutions
- Complete ZLD compliance — no liquid discharge, full regulatory conformity
- Maximum water recovery — 90–95% water recycled back to process
- CPCB/SPCB compliant design — all documentation for pollution board submission
- Technology selection — MEE, MVR, ATFD, spray drying based on your effluent
- Lowest OPEX design — energy recovery integrated to minimise steam/power costs
- ETP + RO + Evaporation — single vendor for the complete ZLD chain
- Salt recovery option — NaCl or Na2SO4 recovery for resale value
- Remote monitoring — SCADA-based plant monitoring with alerts
- 158+ effluent treatment installations — proven base for ZLD scale-up
- Post-commissioning SPCB liaison support for compliance certificate
Industries & Applications in Bengaluru
Textile Dyeing
Distillery
Sugar Mill
Tannery
Pharmaceutical
Chemical Plant
Paper & Pulp
Power Plant
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Common Questions
Zero Liquid Discharge Plant in Bengaluru — FAQ
What is the cost of a Zero Liquid Discharge Plant in Bengaluru?
ZLD plant cost in Bengaluru varies significantly based on effluent volume and characteristics. A 5 KLD ZLD system starts from ₹30–50 Lakh. A 50 KLD ZLD plant typically costs ₹1.5–3 Crore. Textile dyeing ZLD systems for 100 KLD+ can cost ₹3–10 Crore. Contact Optima for a free feasibility assessment and budgetary quote.
Is ZLD mandatory for my industry in Bengaluru?
ZLD is mandatory for textile dyeing/processing, distilleries, sugar mills, tanneries, pharmaceutical bulk drug, dyes and dye intermediates, and chlor-alkali industries in India. The Karnataka PCB may have issued ZLD notices to your category. Optima can review your industry category and advise on compliance requirements in Bengaluru.
How much water is recovered in a ZLD plant?
A well-designed ZLD plant recovers 90–95% of the input water volume for reuse in your process. Only 5–10% ends up as concentrate which is then evaporated to dry solids. This dramatically reduces your fresh water intake and eliminates liquid discharge completely.
What is the difference between ETP and ZLD?
An ETP treats effluent to meet discharge standards and the treated water is discharged to the drain or river. A ZLD plant goes further — it recycles all treated water back to your process with zero discharge to any water body. ZLD requires additional RO and evaporation stages beyond a standard ETP.
Can you upgrade our existing ETP to ZLD in Bengaluru?
Yes. This is the most common ZLD project Optima handles. If you have an existing ETP in Bengaluru, we add RO, MEE/MVR, and an ATFD or spray dryer to convert it to full ZLD. We assess your current ETP and design the most cost-effective upgrade path to achieve compliance.
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Our engineers in Bengaluru are available for a free site visit and assessment.