10000 LPH RO Plant Price in Chennai
RRR
10,000 LPH Reverse Osmosis (RO) Plant
High-capacity industrial RO — skid mounted options, multi-stage membranes, CIP, and robust pre-treatment. Designed for reliable permeate and easy operation.
Quick summary: Permeate = 10,000 LPH (10 m³/hr). Typical single-pass recovery assumed = 70%. Pre-treatment: PSF → ACF → Water softener / anti-scalant → Cartridges → HP pump → RO trains → Permeate tank → Post treatment (UV/Hypo if needed).
Process Flow (Typical)
Raw Feed → Multimedia / PSF → Activated Carbon Filter (ACF) → Water Softener / Anti-scalant Dosing → Cartridge Filters (5 µm → 1 µm) → High-Pressure Pump → RO Skid (Stage 1 ± Stage 2) → Permeate Tank → Post Treatment (UV / Hypo / Mineraliser) → Distribution.
Reject / Concentrate → Drain or ZLD routing (as required).
Design Basis — digit-by-digit calculations
Given:
Permeate required (P) = 10,000 LPH = 10,000 litres per hour.
Convert to cubic metres per hour: 10,000 L ÷ 1000 = 10.000 m³/hr.
Design recovery (R) assumed = 70% = 0.70 (adjust after feed analysis).
Permeate required (P) = 10,000 LPH = 10,000 litres per hour.
Convert to cubic metres per hour: 10,000 L ÷ 1000 = 10.000 m³/hr.
Design recovery (R) assumed = 70% = 0.70 (adjust after feed analysis).
Feed & Reject flows (step-by-step)
Calculate feed (Qf) required to produce P at recovery R:
Qf = P / R = 10.000 ÷ 0.70 = 14.285714285714286 m³/hr.
(Digit arithmetic: 10.000 ÷ 0.70 = 14.285714285714286 → round to 14.286 m³/hr for reporting.)
Reject (concentrate) Qr = Qf − P = 14.285714285714286 − 10.000 = 4.285714285714286 m³/hr ≈ 4.286 m³/hr.
In LPH: Feed ≈ 14,286 LPH • Permeate = 10,000 LPH • Reject ≈ 4,286 LPH.
Qf = P / R = 10.000 ÷ 0.70 = 14.285714285714286 m³/hr.
(Digit arithmetic: 10.000 ÷ 0.70 = 14.285714285714286 → round to 14.286 m³/hr for reporting.)
Reject (concentrate) Qr = Qf − P = 14.285714285714286 − 10.000 = 4.285714285714286 m³/hr ≈ 4.286 m³/hr.
In LPH: Feed ≈ 14,286 LPH • Permeate = 10,000 LPH • Reject ≈ 4,286 LPH.
Given P = 10,000 LPH = 10.000 m³/hr
R = 0.70
Qf = P / R = 10.000 ÷ 0.70 = 14.285714285714286 m³/hr → 14.286 m³/hr
Qr = Qf - P = 14.285714285714286 - 10.000 = 4.285714285714286 m³/hr → 4.286 m³/hr
In liters/hr: Feed = 14,286 LPH, Permeate = 10,000 LPH, Reject = 4,286 LPH
Membrane area & element count (worked example)
Choose conservative membrane flux = 16 LMH (litres/m²·hr) for long life.
Required membrane area A = Permeate (L/hr) ÷ Flux (L/m²·hr) = 10,000 ÷ 16 = 625.0 m².
Typical 8" wound element active area ≈ 6.0 m² (vendor dependent).
Number of elements = A ÷ element_area = 625.0 ÷ 6.0 = 104.16666666666667 → round up to 105 elements.
Typical train configuration (example): use 7 vessels × 15 elements = 105 elements (or 5 vessels × 21 elements depending on vessel type). Choose vendor vessel sizes (8"×40" or 8"×48") for exact layout.
Required membrane area A = Permeate (L/hr) ÷ Flux (L/m²·hr) = 10,000 ÷ 16 = 625.0 m².
Typical 8" wound element active area ≈ 6.0 m² (vendor dependent).
Number of elements = A ÷ element_area = 625.0 ÷ 6.0 = 104.16666666666667 → round up to 105 elements.
Typical train configuration (example): use 7 vessels × 15 elements = 105 elements (or 5 vessels × 21 elements depending on vessel type). Choose vendor vessel sizes (8"×40" or 8"×48") for exact layout.
Flux = 16 L/m²·hr
A = 10,000 ÷ 16 = 625.0 m²
Elements ≈ 625.0 ÷ 6.0 = 104.1666... → 105 elements (round up)
Example trains: 7 × 15 elements = 105 elements
Membrane element active area varies by vendor — final count & vessel layout confirmed with chosen membrane (DOW/Toray/LG/etc.). Splitting into multiple trains gives operational flexibility (CIP per train, partial run during maintenance).
High-Pressure Pump & Motor Estimate (digit-by-digit)
Rough power estimate using hydraulic formula (digit-by-digit):
- Feed Qf = 14.285714285714286 m³/hr = 14.285714285714286 ÷ 3600 = 0.003968253968253968 m³/s.
- Design pressure = 15 bar → convert to head: 1 bar ≈ 10.197 m → 15 bar × 10.197 = 152.955 m.
Q (m³/s) = 14.285714285714286 ÷ 3600 = 0.003968253968253968
Head H = 15 × 10.197 = 152.955 m
Hydraulic power (W) = ρ × g × Q × H = 1000 × 9.81 × 0.003968253968253968 × 152.955 ≈ 5,954.319642857142 W ≈ 5.954 kW
Assume pump+motor+drive efficiency η = 70% (0.70)
Installed motor = 5.954319642857142 ÷ 0.70 ≈ 8.506170918367346 kW → round to practical rating: use 10 kW motor (per pump) with VFD recommended.
Recommendation: provide 2 high-pressure pumps (duty + standby) each with ~10 kW motor (or one 15 kW with parallel pump) depending on vendor selection and safety margin. Use VFD for soft start & energy optimization.
Pre-treatment & CIP
- Multimedia / PSF: turbidity & suspended solids removal.
- Activated Carbon (ACF): remove free chlorine and organics.
- Water Softener or Anti-scalant dosing: prevent scale from Ca/Mg/silica.
- Cartridge Filters (5 µm → 1 µm): protect membranes.
- CIP skid: acid & alkali dosing pumps, CIP manifold for scheduled cleaning.
Pre-treatment must be sized from actual feed water report (TDS, hardness, silica, iron, turbidity, SDI). Anti-scalant & pH control depend on feed chemistry.
Membrane & Skid Details
| Item | Spec / Note |
|---|---|
| Membrane | Polyamide TFC brackish water grade (DOW / Toray / LG options) |
| Design flux | 16 LMH (used for calculations) |
| Elements (indicative) | ≈ 105 elements (final confirmed with vendor) |
| Skid | SS304/316 frame, pressure vessels, valves, gauges, piping & insulation |
| CIP | Acid & alkali dosing pumps + CIP manifold; automatic CIP scheduling recommended |
Expected Performance & Output
| Parameter | Feed (typical) | Permeate (expected) |
|---|---|---|
| TDS | 500 – 4000 mg/L (site dependent) | Depends on membrane rejection (90–99%). Example: feed 2000 mg/L → permeate 20–200 mg/L |
| Permeate Flow | — | 10,000 LPH (design) |
| SDI | < 5 desired before RO | Low SDI (with good pre-treatment) |
Permeate quality & recovery must be guaranteed after reviewing full feed water analysis (TDS, SDI, temp, hardness, silica, iron, organics).
Operation & Maintenance
- Monitor differential pressure & permeate flow; schedule CIP based on flux/TMP drop.
- Keep spare elements (10–15%) and spare cartridges on site.
- Use anti-scalant dosing and control pH for scale-forming feeds.
- Maintain CIP chemicals and periodic integrity checks for membranes.
- Logbook for flows, pressures, TDS (feed & permeate), and maintenance events for compliance and warranty.