SWRO & BWRO Engineering / Isobaric Energy Recovery / Since 1999
Converting ocean seawater and high-salinity brackish water into potable drinking water and high-purity industrial process water using energy-efficient reverse osmosis membrane arrays.
High permeate recovery efficiency on 35,000 ppm TDS seawater feed
Power consumption reduction via isobaric pressure exchangers
Pre-treatment clarity delivered via Ultrafiltration pretreatment skids
Design life engineered for heavy marine corrosion environments
Custom high-pressure membrane configuration for coastal cities, resorts, and island industries.
Transfers hydraulic pressure from concentrated brine stream directly to incoming seawater feed, cutting high-pressure pump energy draw by 60%.
Removes dissolved salts, boron, and trace minerals to produce WHO compliant drinking water in a single pass.
Protects high-pressure membranes from red-tide algae and silt.
ISO containerized plants ready for rapid coastal deployment.
Zero pitting corrosion in 70 bar ocean saltwater environments.
Historical seawater desalination was notoriously energy intensive. Rispri Labs integrates ceramic rotor pressure exchangers that capture 98% of hydraulic energy from high-pressure concentrate brine, recycling it directly into the feed stream. This drops specific power consumption below 2.8 kWh per cubic meter of desalinated fresh water.
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Comparative analysis between Brackish Water RO and Ocean Seawater RO configurations.
| Feature / Metric | Brackish Water RO (BWRO) | Seawater RO (SWRO) |
|---|---|---|
| Raw Water Feed TDS | 2,000 – 10,000 ppm | 35,000 – 45,000 ppm |
| Operating Pressure | 15 – 25 Bar | 55 – 75 Bar |
| Permeate Recovery Rate | 75% – 85% | 45% – 50% |
| Energy Index (with ERD) | 0.5 – 1.0 kWh/m³ | 2.6 – 3.2 kWh/m³ |
| Piping Metallurgy | SS304 / High-Grade PVC | Super Duplex SS 2205 / 2507 |
Answers regarding seawater reverse osmosis engineering and installation.
Consult our SWRO engineering team for custom feed water analysis, skid sizing, and energy recovery optimization.
