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PLANTS INSTALLED
ZLD RECOVERY
AMC SUPPORT
COD • TSS • Oil
CPCB < 30 ppm
An Effluent Treatment Plant (ETP) treats process wastewater generated by manufacturing — dyeing liquor, chemical process water, pharmaceutical process streams, food processing wash water, or metal finishing rinse water — to bring it within Central Pollution Control Board and State Pollution Control Board discharge limits, or to a quality suitable for recycling back into the process. Ions India designs ETPs around the specific pollutant profile of your industry rather than a generic template, because a dyeing effluent, a pharma effluent, and a food-processing effluent each demand different chemistry and different treatment stages.
Our process begins with a full effluent characterization — BOD, COD, TSS, pH, oil and grease, and industry-specific parameters like color, chromium, or heavy metals — followed by a treatment scheme that typically combines physico-chemical treatment (screening, equalization, coagulation-flocculation, and clarification) with biological treatment (MBBR, SBR or activated sludge) and, where required, tertiary polishing through filtration and activated carbon. For industries with high color or dissolved solids, such as textile dyeing, we frequently recommend advanced options like Zero Liquid Discharge (ZLD) with reverse osmosis and evaporation.
Flow and load balancing to handle shock loads, followed by chemical dosing and clarifier for solids separation. Foundation of every stable ETP.
Biological treatment removes dissolved organics. Technology selected on BOD/COD ratio and space.
Filtration and activated carbon for final polish to meet strict SPCB limits.
Clean infographic showing effluent flow from screening to compliant discharge.
For textile dyeing & chemical units with high color/TDS — full water recovery, no liquid discharge.
We have built ETPs for textile and dyeing units, pharmaceutical and API manufacturers, chemical and specialty chemical plants, food and beverage processors, dairies, metal finishing and electroplating units, and general engineering manufacturers. Each sector comes with a distinct compliance category under CPCB classification.
High color and dissolved solids. ZLD with RO and evaporation is frequently recommended for full water recovery.
Complex process streams with variable organic loads, solvents and API residues.
Chemical process water with heavy metals, high COD and diverse chemistry.
Food processing wash water with high BOD, oil and grease.
Dairy effluent with fat, protein and nutrient load requiring oil removal.
Metal finishing rinse water with chromium, cyanide and heavy metals.
Beyond building the plant, we help clients understand what Pollution Control Board inspectors will expect to see: consistent effluent quality reports, proper sludge disposal records, and a plant that is actually operated as designed rather than bypassed during inspections.
An ETP that is undersized, poorly maintained, or built with substandard components becomes a liability rather than a compliance asset — frequent breakdowns, non-compliant discharge, and eventual regulatory penalties. We build with corrosion-resistant materials.
Many industrial clusters route pretreated effluent to a shared CETP rather than discharging independently. Our design focuses on meeting CETP's specific inlet norms — often stricter than final discharge norms — so your unit avoids penalty.
As production scales up, many clients find existing ETP was sized for smaller operation. We retrofit and expand plants — adding parallel trains, upgrading dosing and aeration capacity, or introducing tertiary stage.
Design based on full effluent characterization, not generic templates
Physico-chemical, biological and tertiary treatment stages as needed
Zero Liquid Discharge (ZLD) options for textile, dyeing and chemical industries
Serves textile, pharma, chemical, food & beverage, dairy and metal finishing sectors
CPCB/SPCB-aligned design and Consent to Operate documentation support
Corrosion-resistant construction matched to your specific effluent chemistry
AMC monitoring to catch performance drift before compliance violations occur
500+ Plants Installed • 100% Water Recovery ZLD • 24/7 AMC Support
Most asked questions about ETP design, Zero Liquid Discharge and Pollution Control Board compliance — straight answers from Ions India.
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