LG BW 4040 UES

High Rejection Brackish Water Reverse Osmosis (BWRO) Membrane Element

LG Chem’s NanoH2OTM brackish water RO membranes lower water treatment costs by improving energy efficiency and productivity. These thin-film nanocomposite (TFN) membranes feature benign nanomaterials incorporated into the thin-film polyamide layer of a composite membrane. This innovative patented and patent-pending technology significantly increases membrane permeability while matching best-in-class salt rejection.
    • Superior flux and high salt rejection
    • Ideal for low energy applications
    • Easy to retrofit existing RO plants


Product Specifications

LG BW 4040 UES
Active Membrane Area 7.9 m² (85 ft²)
Permeate Flow Rate 9.5 m³/d (2,600 gpd)
Minimum NaCI Rejection 98.0%
Stabilized NaCI Rejection 99.0%
Feed Spacer 28mil
Note: The above values are normalized to the following conditions : 500ppm NaCl @25°C (77°F), 100psi, pH 8, Recovery 15%. Permeate flows for individual elements may vary +20%, -15%.

Operating Specifications

LG BW 4040 UES
Max. Operating Pressure 41 bar (600 psig)
Max. Chlorine Concentration < 0.1 ppm
Max. Operating Temperature 45°C (113°F)
pH Range, Continuous (Cleaning) 2-11 (2-12)
Max. Feedwater Turbidity 1.0 NTU
Max. Feedwater SDI (15 minutes) 5.0
Max. Feed Flow 3.6 m³/h (16 GPM)
Max. Pressure Drop for Each Element 1.0 bar (15 psi)

Product Dimensions

LG BW 4040 UES
Length 101.6 cm (40 in.)
Element Outside Diameter (O.D.) 100 mm (3.9 in.)
Permeate Tube Inside Diameter (I.D.) 19 mm (0.75 in.)
Weight 3.6 kg (8.0 lbs.)