Industrial Water
Treatment.
Engineered.
From ZLD evaporators to municipal-scale STPs — precision water treatment infrastructure designed for India's most demanding industrial environments.
Core Treatment Systems
ZLD systems treat your most difficult high-TDS wastewater streams through evaporation until no liquid discharge remains. The recovered water returns to your process.
- Primary screening & equalisation
- Physico-chemical treatment
- Biological treatment (MBBR / MBR)
- Membrane filtration / RO
- Wastewater evaporator
Efficiency Comparison Matrix
ETP & STP Systems
Multi-stage effluent and sewage treatment using MBR, MBBR/FAB, and anaerobic technologies designed for PCB compliance.
Modular Treatment Pipeline
Pre-Treatment
Screening, equalisation, and physico-chemical treatment to condition incoming industrial effluent.
Biological Treatment
MBBR, MBR, or anaerobic digestion to reduce BOD, COD, and TSS to PCB-compliant levels.
Membrane & ZLD
RO membrane stacks and wastewater evaporator systems for final polishing or zero liquid discharge.
Performance Benchmarks
Every Nirmal system is engineered to comply with Pollution Control Board standards while optimising water recovery, energy efficiency, and long-term uptime.
- ISO 9001:2015 Certified
- Pollution Control Board Compliant
- EC / Environment Clearance Experts
- Turnkey SITC Contractor
- O&M Services Available
Every system, one
engineering partner
Designed, manufactured, and commissioned in-house across all plant types.
- Physical, chemical & biological treatment stages
- Trickling filters, clarifiers, tube settlers, oil skimmers
- Diffused aeration, aerators, agitators/mixers
- Retrofitting of existing ETPs to current PCB norms
- SAFF — Submerged Fixed Film Aeration Technology
- MBBR / FAB — Moving Bed Bio Reactor / Fluidized Bio Reactor
- MBR — Membrane Bio Reactor
- Anaerobic digesters for high-load applications
- Industrial Reverse Osmosis (RO) plants
- Ultra filtration & nano filtration
- Mineral water plants
- Sand bed, activated carbon & cartridge filters
- Water softening plant
- DM / DI water plant
- Ion exchange resin systems
- Multimedia filters
- U.V. purifier systems
- Ozonation systems
- Chlorination systems
- Wastewater evaporator systems
- Zero Liquid Discharge (ZLD) plants
- High-TDS effluent concentration
- Water recovery for process reuse
Services that keep
your plant running
Chemicals for every
treatment application
We supply coagulants, flocculants, disinfectants, and specialised boiler and cooling tower chemicals.
- Bio dispersant
- Biocides (Totally Chlorine Free — TCF)
- Corrosion inhibitors
- Antiscalent
- Dispersants
- Oxygen scavengers
- Corrosion inhibitors
- Antiscalent
- Antifoam / de-foamers
- Sludge conditioners
- Condensate treatment
- pH booster
- Coagulants & flocculants
- Disinfectants
- Sugar chemicals
- Specialised polymers
- Ion exchange resins
Need a custom solution?
Every facility is different. Tell us your requirements and we'll engineer the right system.