Case Studies
Proof from the hardest streams in the field
Every study below is built on plant data — flux curves, differential pressure, cleaning intervals, water analysis and cost of ownership — recorded on live industrial systems running textile, starch, caustic and produced-water duties.
6
Documented field studies
150 MLD
Largest plant referenced
~40%
Typical OPEX reduction
< 5 mo
Fastest documented ROI
Textile CETP · ZLD
150 MLD textile CETP — one RO train retrofitted to HDG, flow stabilised
Gujarat Eco Textile Park (GETP) · Palsana, Surat, Gujarat, India
At a 150 MLD common effluent treatment plant that recycles 25 MLD through 10 RO trains, one train of 350 conventional 400 sq. ft. FR elements was replaced with SV-NanoMetrix™ FR8040-355LD (HDG): permeate flow held constant at 165 m³/hr, CIP frequency halved and 5-year net savings crossed ₹55 lakhs.
165 m³/hr
Stabilised permeate flow (per train)
50%
CIP frequency reduction
95.0%
System availability
138%
5-year ROI
Starch & food processing · Water reuse
Starch ETP RO retrofit: 3.6× slower fouling, ROI under 5 months
Everest Starch India Pvt. Ltd. · Rajkot, Gujarat, India
A 1000 KLD starch ETP retrofit cut ΔP rise from 0.25 to 0.07 bar/day, lifted recovery from 55% to 70% and reduced OPEX by ~40% — payback in under five months.
3.6×
Slower fouling (ΔP rise)
55% → 70%
Recovery rate
~40%
OPEX reduction
< 5 months
Return on investment
Textile dyeing & printing · Water reuse
NF stage upgrade removes the bottleneck in a UF–NF–RO reuse train
Amul Enterprise — AMUL Print · Jetpur, Gujarat, India
Replacing imported SFNF elements with NF-9 delivered ~97% hardness rejection, >99% colour and TSS removal, 71% fewer cleanings and ~40% lower OPEX.
~97%
Hardness reduction
>99%
Colour & TSS removal
55% → 70%
Recovery rate
~40%
OPEX reduction
Textile CETP · Caustic purification, colour & starch removal
Hollow fiber NF purifies waste caustic, removing colour and starch
Common Effluent Treatment Plant, Jetpur · Jetpur, Gujarat, India
Hollow fiber NF stable above pH 12.5 purifies spent caustic — removing colour and starch from the waste caustic in a single step — 80% of the waste caustic returns as colour-free, reusable permeate at 5 bar, 1,500 m³/d, with COD cut from 7,480 to 970 ppm.
80%
Waste caustic purified
5 bar
Operating pressure
1,500 m³/d
Treated flow
87%
COD & colour removal
Starch processing · External MBR
External Spiral UF replaces a failing hollow-fiber MBR at MLSS 15,000
Everest Starch India Pvt. Ltd. · Gujarat 363520, India
Cross-flow spiral UF ended twice-weekly fouling and fiber coagulation, delivering MBR-grade permeate (TSS <1 mg/L) at MLSS 12,000–15,000 ppm and SVI 1,800–2,400.
24×7
Continuous stable operation
< 1 mg/L
Permeate TSS
85–95%
Backwash flux recovery
~70%
Less chemical cleaning
Ceramic UF · Trials & resource recovery
Ceramic membrane trials across six challenging industrial streams
Multiple industrial sites · India & international references
Documented trial results across water, textile bleaching, oil–water separation, high-TDS, produced water and caustic recovery — up to 99.56% turbidity removal and 92% caustic recovery.
99.56%
Peak turbidity reduction
100%
TSS removal (oil–water)
98.29%
Oil & grease removal
92%
Caustic recovery
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