Mega-scale SWRO.

Reimagined.

Mega-Scale SWRO Reimagined

Taking a holistic view to the efficiency hydraulic, electrical and membrane efficiency, FEDCO has developed a three-pronged approached to deliver the next generation of mega-scale SWRO technology.

Challenges

Membrane biofouling

VFD-related energy losses

Limited pump efficiency

BiTurbo HEMI Rendering Front View-1

Solutions

Optimized multi-stage SWRO

reduce fouling and extend membrane life

Minimal reliance on VFDs

reduce HVAC requirements and electrical losses

c.90% hydraulic efficiency

optimized hydraulic designs
Single stage vs two stage RO comparison
RO membranes operate better, foul less, and last longer in multi-stage arrays
HPB-500 HEMI
The HP-HEMI is an integrated ERD and booster pumps, with unprecedented energy efficiency in large-scale SWRO
DRAFT Switchgear schematic
Significant pump and HVAC energy savings are possible with optimized motor and VFD configurations
REDUCE ENERGY CONSUMPTION
  • 5% higher pump efficiency
  • Up to 5% lower energy consumption through elimination of losses and more efficient pumping
  • Handle entire feed flow with c.90% efficient impellers
  • Up to 70% lower HVAC requirements
OPTIMIZE MEMBRANE CONDITIONS
  • Up to 30% longer membrane life
  • Up to 80% higher cross-flow
  • Lower fouling with up to 40% lower membrane beta
  • Smaller second pass: up to 30% lower permeate TDS
IMPROVE PLANT RELIABILITY
  • Up to 50% lower maximum differential pressure for better safety and reliability
  • Eliminate VFD-related downtime by using smaller, easily reparable drives
We are constructing more desalination capacity than ever, but traditional single-stage membrane arrays dominate
 
Small increases to recovery come at the cost of higher biofouling, higher chemical consumption and shorter membrane life
 
Large arrays of isobaric ERDs also struggle to maintain consistent energy transfer, and introduce brine-feed mixing