Sea Water RO Systems
Overview
Seawater reverse osmosis (SWRO) is one of the most effective and widely adopted technologies for converting seawater into high-quality fresh water. Green Nature Solutions designs, fabricates, erects, operates and maintains complete SWRO systems capable of treating seawater with TDS levels up to 50,000 PPM, producing permeate water suitable for drinking, industrial and commercial use.
How It Works
Seawater is first pre-treated to remove suspended solids, turbidity, biological matter and scaling compounds. It is then pressurised using high-pressure pumps and forced through semi-permeable RO membranes. The membranes reject dissolved salts, minerals and contaminants, allowing only pure water molecules to pass through. The concentrated brine reject is safely discharged.
Process Stages
- Intake & Screening – Coarse and fine screens remove large particles and marine organisms
- Pre-treatment – Multimedia filtration, cartridge filtration and chemical dosing (antiscalant, biocide, coagulant) to protect membranes
- High-Pressure Pumping – Energy-efficient pumps with optional Energy Recovery Devices (ERD) to reduce power consumption
- RO Membrane Array – High-rejection spiral wound seawater membranes in pressure vessels
- Post-treatment – pH adjustment, remineralisation, chlorination and storage
- CIP System – Integrated cleaning system to maintain membrane performance
Capacity Range
- Minimum: 0.5 m³/hr
- Maximum: 100 m³/hr
- Custom capacities available on request
Applications
- Coastal municipalities and island communities
- Hotels and resorts in coastal areas
- Offshore oil and gas platforms
- Navy and maritime vessels
- Industrial process water in coastal industries
- Desalination projects
Key Features
- Complete turnkey solutions from design to commissioning
- High salt rejection membranes (99%+)
- Energy Recovery Devices to minimise operating costs
- SCADA / PLC-based automation for remote monitoring
- Stainless steel high-pressure piping and fittings
- Comprehensive AMC (Annual Maintenance Contract) support
Technical Specifications
| Parameter | Details |
|---|---|
| Feed TDS | Up to 50,000 PPM |
| Capacity | 0.5 – 100 m³/hr |
| Recovery Rate | 35% – 45% |
| Salt Rejection | 99%+ |
| Operating Pressure | 55 – 70 bar |
| MOC – Pressure Vessels | FRP / SS316L |