Choosing a water treatment partner is easier when results are measurable. Below are real-world water treatment case studies by Rolan, highlighting before–after KPIs, compliance outcomes, and cost savings across industrial, residential, and public-sector projects.
Case Study 1: Industrial RO Plant (Manufacturing Unit)
Challenge
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Borewell water with very high TDS
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Frequent boiler scaling & downtime
Solution
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Multi-stage pre-treatment + Industrial RO plant
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Automated flushing & monitoring
Key KPIs (Before → After)
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TDS: 3,200 ppm → 120 ppm
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Boiler downtime: 18 hrs/month → <2 hrs/month
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Water recovery: 70%
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OPEX reduction: ~22%
Outcome
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Stable process water
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Improved equipment life
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Faster ROI (≈ 24 months)
Keywords: industrial RO plant case study, water purification results
Case Study 2: STP for Residential Township
Challenge
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Non-compliance with discharge norms
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High freshwater demand for landscaping
Solution
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MBR-based STP with tertiary filtration
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Treated water reuse for flushing & gardening
Key KPIs (Before → After)
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BOD: 45 mg/L → <10 mg/L
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Treated water reuse: 60%
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Freshwater savings: ~40%
Outcome
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Full compliance
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Lower water bills
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Improved sustainability rating
Keywords: STP case study residential, sewage treatment results
Case Study 3: Textile ETP + ZLD System
Challenge
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High color & chemical load
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Mandatory zero discharge requirement
Solution
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Physico-chemical ETP + RO + Evaporation & Crystallization (ZLD)
Key KPIs (Before → After)
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Color removal: >98%
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Water recovery: ~95%
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Liquid discharge: Zero
Outcome
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ZLD compliance achieved
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Maximum water reuse
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Reduced freshwater dependency
Keywords: ZLD case study textile, effluent treatment results
Case Study 4: Municipal WWTP Upgrade
Challenge
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Aging infrastructure
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Inconsistent effluent quality
Solution
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Capacity augmentation
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Advanced tertiary filtration & disinfection
Key KPIs (Before → After)
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Plant uptime: 85% → 98%
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Compliance rate: 100%
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Treated water reuse for utilities
Outcome
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Reliable performance
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Reduced complaints & penalties
Keywords: municipal wastewater case study, WWTP performance
What These Case Studies Prove
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✔ Correct design improves compliance & ROI
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✔ Automation reduces OPEX & downtime
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✔ Recycling & ZLD maximize water security
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✔ Measurable KPIs build trust & transparency
Why Clients Choose Rolan (Proven by Results)
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✔ Data-driven design & KPIs
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✔ Customized solutions by application
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✔ EPC + AMC lifecycle support
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✔ Consistent compliance & performance
Rolan delivers results-backed water treatment solutions across India.
Conclusion
These water treatment case studies demonstrate how the right technology, design, and execution translate into real savings, compliance, and sustainability. If you want similar outcomes for your project, Rolan is ready to deliver.
👉 Request project-specific case studies at www.rolan.in
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Last updated: January 3, 2026