Replacement Membranes Reverse Osmosis for Seawater

Seawater Reverse Osmosis (SWRO)

LG SW 400 SR G2

The next-generation LG SW G2 membranes have achieved record-breaking salt rejection, improving the product quality up to 45% compared with the conventional technology. With enhanced Thin Film Nanocomposite (TFN) technology, LG SW G2 membranes can significantly reduce the cost of desalination.
LG SW SR (Super Rejection) membranes offer the highest rejection for the best product water quality; suitable for high salinity seawater applications.

LG SW G2 Benefits

  • Improved permeate quality without increasing operating pressure
  • Reduced energy cost without sacrificing the permeate quality
  • Reduced capital and operation costs for multi-pass SWRO systems
Reverse Osmosis Membranes LG Chem Replacement

LG SW 400 SR G2

Active Membrane Area, ft² (m²)  Permeate Flow Rate, GPD (m³/d) Stabilized Salt Rejection, %  Minimum Salt Rejection, % Boron Rejection, % Feed Spacer, mil
400 (37) 6,000 (22.7) 99.89 99.75 93 28 or 34
Test Conditions : 32,000 ppm NaCl, 5 ppm boron at 25°C (77°F), 800 psi (55 bar), pH 8, Recovery 8%.
Permeate flows for individual elements may vary +/-15%.

Operating Specifications

Max. Applied pressure  1,200 psi (82.7 bar)
Max. Chlorine concentration < 0.1 ppm
Max. Operating temperature 45°C (113°F)
pH Range, Continuous (Cleaning) 2 -11 (2 -13)
Max. Feedwater turbidity  1.0 NTU
Max. Feedwater SDI (15 mins) 5.0
Max. Feed flow  75 gpm (17 m3/h)
Min. Ratio of concentrate to permeate flow for any element 5 : 1
Max. Pressure drop (ΔP) for each element  15 psi (1.0 bar)

Product Dimensions

A, B, C, Weight,
mm (in.) mm (in.) mm (in.) kg (lbs.)
1,016 200 28.6 16
(40) (7.9) (1.125) (35)
Membrane Dimensions LG Chem

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