Applications
Where it's used
- Coastal factories and refineries
- Ports, shipyards and offshore facilities
- Resorts, hotels and coastal townships
- Islands and remote sites
- Brackish borewell water inland
Seawater desalination
Desalination plants that make seawater usable
Where fresh water is scarce, the sea is a reliable source. Our desalination plants use seawater reverse osmosis to turn seawater or brackish water into water for drinking and industry.
Overview
What it is
Seawater carries far more dissolved salt than borewell or municipal water, so a desalination plant runs at much higher pressure and needs careful pre-treatment to handle silt, algae and marine growth.
Energy is the largest running cost. We design plants with energy recovery where it makes sense, and size the plant so it runs efficiently for your demand.
The treatment train
Inside a desalination plant
Intake and screening
Seawater is drawn from a beach well or an open intake and screened to remove debris.
Pre-treatment
Filtration, and ultrafiltration where needed, removes silt, algae and suspended solids.
High-pressure RO
Seawater membranes separate fresh water from brine, with energy recovery to cut power use.
Post-treatment
Remineralisation and disinfection make the water fit for drinking or process use.
Scope
What's included
- Site study and water analysis
- Intake and brine discharge design
- Pre-treatment, seawater RO and energy recovery
- Post-treatment and storage
- Installation, commissioning and training
- Service and AMC options
Questions
What buyers ask us
What's the difference between seawater and brackish water RO?
Brackish water has much less salt than seawater, so brackish RO runs at lower pressure and costs less to operate. We design for whichever your source is.
What happens to the brine?
The concentrated brine has to be discharged responsibly, usually back to the sea through a diffuser, within the limits set for your site. We plan the discharge as part of the design.
Need a desalination plant?
Send us your water analysis and how much water you need each day, and we'll size a plant for you.
Industrial RO plants
Effluent treatment plants (ETP)
Sewage treatment plants (STP)
Water softeners
Custom treatment systems