For many industries around Chennai, discharging treated effluent is either not allowed or not sensible. Consent conditions may require zero liquid discharge, the nearest sewer or water body may be off limits, and water itself is too expensive to waste. A zero liquid discharge (ZLD) system treats all effluent, recovers clean water for reuse and leaves only dry solids. Intellect Aqua designs complete ZLD systems for chemical, pharma, textile, leather, food and engineering units across the Chennai region.
Pollution control consent conditions for many water-intensive and polluting industries in Tamil Nadu require zero discharge. Coastal and creek areas around Chennai are particularly sensitive.
Chennai has faced severe water shortages in recent years. Industries that recover and reuse most of their water are far less exposed to tanker shortages and supply cuts.
Global customers and investors increasingly look at water stewardship. A ZLD plant demonstrates responsible water use.
Equalisation, neutralisation, chemical and biological treatment remove suspended solids, colour, oil and organic load. A strong ETP is the foundation of every ZLD plant.
Sand and carbon filters and ultrafiltration remove fine particles and colloids that would foul membranes.
Industrial RO in two or three stages recovers most of the water as clean permeate for reuse in process, boilers or cooling towers.
The concentrated reject goes to a Multiple Effect Evaporator (MEE) or Mechanical Vapour Recompression (MVR) system. Evaporated water is condensed and reused.
The remaining concentrate is dried, typically in an agitated thin film dryer, and the solids are disposed of through authorised channels.
| Factor | MEE | MVR |
|---|---|---|
| Energy | Steam | Electricity |
| Best when | Boiler steam available at low cost | Steam is costly; power is reliable |
| Capital cost | Moderate | Higher |
| Running cost | Depends on fuel | Often lower per kL |
We compare both using your actual steam and power costs.
Evaporation is the most expensive part of ZLD, so every cubic metre recovered by RO saves money. Our designs focus on:
Before you invest in ZLD, you need numbers you can trust. Our feasibility study covers:
With this in hand, you can make a confident decision and compare vendor quotes on equal terms.
Not every stream needs the full ZLD treatment. Low-TDS streams like cooling tower blowdown or rinse water can often be recycled with simpler treatment, while only concentrated streams go to evaporation. Separating streams at the source can shrink the evaporator — the most expensive part of the system — significantly.
If you already have an ETP and RO but still discharge reject, we can add high-recovery RO and evaporation to reach ZLD without rebuilding everything. We start with an audit of your existing plant and a mass balance.
ZLD plants need skilled operation to keep recovery high and evaporators running. Our AMC service in Chennai includes operators, membrane cleaning, chemical management and evaporator monitoring.
We build ZLD systems across the Chennai region — Manali, Ennore, Gummidipoondi, Thiruvallur, Ambattur, Sriperumbudur, Oragadam, Irungattukottai, Maraimalai Nagar and Chengalpattu.
We also build ZLD plants in Ranipet, Coimbatore, Tiruppur, and Hosur.
Share your effluent volume, TDS and processes. We will prepare a feasibility study with mass balance, equipment list and cost estimates.
Comprehensive solutions for efficient water treatment, maintenance, and system performance.
Hear from industrial clients and facility managers who trust Intellect Aqua for high-performance water and wastewater treatment solutions.
“Their technical clarity, quality execution, and upgradation support helped us achieve Zero Liquid Discharge. A truly trusted leader in ETP process solutions.”
“Assurance, trustworthy quality and prompt service in all aspects.”
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