Membrane, pressure and staging follow salinity and temperature
06 / DESALINATION
Seawater Desalination System
Pretreatment, high-pressure reverse osmosis and product-water conditioning are configured for high-salinity and corrosive feedwater.
High-pressure piping, pumps and valves require dedicated selection
Energy recovery can be evaluated for larger capacities
PROCESS ROUTE
Typical Process Route
This is a typical configuration logic, not a fixed equipment list. The final design depends on feed analysis, target requirements, capacity and site constraints.
- 01
Intake Pretreatment
Screen debris and suspended solids
- 02
Fine Filtration
UF or media filtration controls fouling potential
- 03
Chemical Conditioning
Manage scale, oxidants and pH
- 04
High-Pressure SWRO
Separate permeate from concentrated brine
- 05
Product Conditioning
Remineralize, disinfect or further polish
APPLICATIONS
Applications
Island Water SupplyDomestic and industrial freshwater
Marine & OffshoreCompact corrosion-resistant packages
Coastal IndustryProcess make-up and emergency supply
High-Salinity GroundwaterProject-specific membrane design
Remote Project CampsContainerized freshwater production
Resource-Recovery ProjectsInterface with brine concentration systems
TECHNICAL KNOWLEDGE
Technical Notes & FAQ
Clear principles, prerequisites and operating limits help determine whether a process is suitable before quotation.
Why is SWRO pressure higher than conventional RO?
Seawater has much higher osmotic pressure. Net driving pressure must account for salinity, temperature, recovery and membrane arrangement.
Is higher recovery always better?
Higher recovery raises concentrate salinity and scaling risk. A safe target balances chemistry, pretreatment, antiscalant design and brine disposal.
Where is corrosion control most critical?
High-pressure pumps, connectors, valves and piping continuously contact chloride-rich water. Low- and high-pressure sides cannot simply share one material standard.
Why condition the product water?
SWRO permeate has low mineral content and alkalinity. Potable use may require stabilization and disinfection; high-purity use may need second-pass RO or EDI.
Engineering boundary: Pressure, recovery, energy and product quality are confirmed from ionic analysis, temperature and membrane projection.
ENGINEERING DELIVERY
Engineering Delivery & Support
We support the full project lifecycle from process planning and manufacturing to commissioning and after-sales service.
Process Design
Define the process route and equipment selection from water quality, capacity, targets and site constraints.
Manufacturing
Modular assembly, quality inspection and factory testing against the approved design.
Installation & Commissioning
Site installation, integrated commissioning, operating optimization and operator training.
After-Sales Support
Ongoing technical support, consumables and troubleshooting, with a 24-hour response to after-sales issues.
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