RRR
5000 LPH RO Plant — Commercial & Mineral Water Bottling
Turnkey, high-quality 5000 LPH RO system — SS304 skid available for bottled water use, PLC automation, UV polishing & remineralization. Local supply & AMC across Tamil Nadu.
Quick Snapshot
Capacity: 5000 LPH (5.0 m³/hr — 120 m³/day). Target uses: Commercial buildings (drinking & service) and Mineral water bottling. Skid: SS304 (bottling) / MS powder coat / FRP. Automation: PLC — fully automatic. Typical recovery: ~70% (site dependent).
Technical Specifications (Indicative)
| Item | Specification |
|---|---|
| Permeate | 5,000 LPH (0.5 m³/hr × 10 = 5 m³/hr) |
| Feed / Design TDS | Up to 2000 mg/L (design adjustable) — final confirmed after site lab report |
| Recovery | ~70% (typical) — adjustable by design |
| Membranes | TFC RO elements — 8″×40″ / 8″×48″ depending on vendor layout |
| Skid | SS304 (recommended for bottled water) / MS powder coat / FRP option |
| Pumping | High-pressure feed pumps (e.g., CRI / Grundfos) with VFD recommended |
| Pre-treatment | Multi-media sand filter → Activated carbon → Antiscalant dosing → Cartridge (5 µm) |
| Post-treatment | UV disinfection + remineralization / pH correction + ozone (optional for bottled water) |
| Automation | PLC with HMI, conductivity meter, auto flush, alarms, auto CIP scheduling (option) |
Process Flow (Overview)
Raw water → Coarse screen → Sand/media filter → Activated carbon → Antiscalant dosing → Cartridge filter → High-pressure RO skid (membranes) → Permeate polishing (UV + remineralizer / ozone for bottling) → Permeate tank → Bottling / Distribution.
Concentrate (reject) routed to drain / recovery system / ZLD pre-treatment as required.
Design Calculations — step-by-step (transparent)
Goal: produce 5,000 LPH permeate at ~70% recovery.
1) Permeate & feed flow
Permeate Qp = 5,000 LPH.
Recovery r = 0.70 → Feed Qf = Qp ÷ r = 5,000 ÷ 0.70 = 7,142.86 LPH.
Convert: 7,142.86 LPH = 7.14286 m³/hr = 0.00198413 m³/s.
2) Design pressure (example)
For high TDS up to ~2000 mg/L we use conservative design pressure ≈ 25 bar (site dependent). 25 bar = 2,500,000 Pa.
3) Equivalent head (H)
H = Pressure / (ρ × g) = 2,500,000 ÷ (1000 × 9.81) ≈ 254.84 m head.
4) Hydraulic power (Phyd)
Phyd = ρ × g × Q × H = 1000 × 9.81 × 0.00198413 × 254.84 ≈ 4,960 W (~4.96 kW).
5) Motor sizing (allowing efficiency)
Assume pump + motor combined efficiency η ≈ 60% (0.60). Required motor power = 4.96 kW ÷ 0.60 = ~8.27 kW. Recommend standard motor rating → **11 kW motor** (common commercial size, allows margin). Final selection depends on friction losses & vendor curves.
1) Permeate & feed flow
Permeate Qp = 5,000 LPH.
Recovery r = 0.70 → Feed Qf = Qp ÷ r = 5,000 ÷ 0.70 = 7,142.86 LPH.
Convert: 7,142.86 LPH = 7.14286 m³/hr = 0.00198413 m³/s.
2) Design pressure (example)
For high TDS up to ~2000 mg/L we use conservative design pressure ≈ 25 bar (site dependent). 25 bar = 2,500,000 Pa.
3) Equivalent head (H)
H = Pressure / (ρ × g) = 2,500,000 ÷ (1000 × 9.81) ≈ 254.84 m head.
4) Hydraulic power (Phyd)
Phyd = ρ × g × Q × H = 1000 × 9.81 × 0.00198413 × 254.84 ≈ 4,960 W (~4.96 kW).
5) Motor sizing (allowing efficiency)
Assume pump + motor combined efficiency η ≈ 60% (0.60). Required motor power = 4.96 kW ÷ 0.60 = ~8.27 kW. Recommend standard motor rating → **11 kW motor** (common commercial size, allows margin). Final selection depends on friction losses & vendor curves.
Permeate Qp = 5000 LPH
Recovery r = 0.70
Feed Qf = 5000 ÷ 0.70 = 7142.86 LPH = 7.14286 m³/hr = 0.00198413 m³/s
Design pressure ≈ 25 bar = 2,500,000 Pa
H = 2,500,000 ÷ (1000 × 9.81) ≈ 254.84 m
P_hyd = 1000 × 9.81 × 0.00198413 × 254.84 ≈ 4,960 W
Motor ≈ 4.96 ÷ 0.60 ≈ 8.27 kW → choose 11 kW motor for margin
Note: vendor selection finalises pump head including friction, membrane stages, and piping losses — the motor above is indicative and selected for reliability.
Membrane Layout & Quality
- Use industrial 8″×40″ or 8″×48″ TFC RO elements with appropriate staged arrangement.
- Permeate TDS target: 50–80 ppm for drinking, < 20 ppm for bottling (choose extra polishing & double-pass RO or EDI for bottled water).
- Antiscalant + acid dosing recommended for sustained recovery at high feed TDS.
Pre-treatment & Chemicals
- Multimedia sand filter (remove turbidity).
- Activated carbon (remove organics & chlorine).
- Antiscalant dosing (continuous) + acid dosing for pH control if needed.
- 5 µm cartridge filter before RO.
- Periodic sanitization with NaOCl, routine CIP schedule (3–6 months).
Operation, Maintenance & AMC
- Daily: check feed/permeate flow, pressures, conductivity and alarm logs.
- Weekly: change cartridge filters, check dosing systems and backwash pre-filters.
- Quarterly / Semi-annual: CIP (chemical cleaning), membrane performance verification.
- We provide AMC packages with scheduled visits, spare membranes & emergency response across TN.
FAQ — 5000 LPH RO
Q: What permeate TDS can I expect?
A: Typical permeate for brackish feed & TFC membranes is 50–80 ppm (drinking). For bottled water (<20 ppm) we recommend double-pass RO / EDI and extra polishing (and SS skid).
Q: How often do membranes need CIP?
A: Typically every 3–6 months depending on feed water quality and recovery. We include CIP schedule in proposal.
Q: Do you provide bottling-grade skid & documentation for FSSAI?
A: Yes — SS304 skid, food-grade piping, documentation & support for FSSAI/ISI compliance are available on request.
A: Typical permeate for brackish feed & TFC membranes is 50–80 ppm (drinking). For bottled water (<20 ppm) we recommend double-pass RO / EDI and extra polishing (and SS skid).
Q: How often do membranes need CIP?
A: Typically every 3–6 months depending on feed water quality and recovery. We include CIP schedule in proposal.
Q: Do you provide bottling-grade skid & documentation for FSSAI?
A: Yes — SS304 skid, food-grade piping, documentation & support for FSSAI/ISI compliance are available on request.