Home / Products / Reverse Osmosis Membrane Elements / Brackish Water (BW) / BWRO Membrane Extra Low Energy Series BW-4040-82XLE
BW RO membrane elements are mainly used for brackish water desalination. They provide excellent, stable and consistent membrane performance for industrial water treatment systems.
Product Description
UltraClean XLE series reverse osmosis membranes change the surface properties and chemical properties of the membrane by changing the formulation and production process conditions of the bottom membrane and composite membrane, improving the specific surface area and hydrophilicity, and maximizing the membrane flux. It is suitable for municipal water treatment. It is one of the reverse osmosis membrane elements with the highest water production and the lowest operating pressure in the membrane industry. The total cost of assembling the system with this element is the lowest, which can greatly improve the operating economy of the reverse osmosis system. as the most. A new generation of ultra-low energy consumption and high-performance reverse osmosis membrane elements, its operating pressure is about 1/2 that of ordinary brackish water reverse osmosis membrane elements, and the desalination rate can reach 99%. The ultra-low energy series is available in 8-inch and 4-inch sizes.
Product Highlights
Stable performance and high rejection rate for organics
Low operating pressures, high flux and cost saving
Meet the demand for near zero discharge
General Information
The first full tank of permeate should be discarded, DO NOT use this initial permeate for drinking water or food preparation.
Keep membrane moist at all times after initial wetting.
To stop growth during prolonged system shutdowns, it is recommended that membrane elements be immersed in a preservative solution.
Membrane Specification
| A inch(mm) | B inch(mm) | C inch(mm) |
| 37.9 (963) | 0.75 (19) | 3.9 (99) |
Performance Specification
| Effective Membrane Area ft²(m²) | Stablized Rejection Rate(%) | Minimum Rejection rate(%) | Flux gpd(m³/d) |
| 82 (7.6) | 99.0 | 98.0 | 2250 (8.7) |
Test conditions: inlet pressure 0.69 MPa (100 psi); inlet temperature 25°C (77°F); inlet water quality 500ppm NaCl; inlet pH 8; recovery 15%.
Operating and Cleaning Limits
| Maximum Operating Pressure | 41 bar (600 psi) |
| Maximum Operating Temperature | 45°C (113°F ) |
| Maximum Element Pressure Drop | 1.0 bar (15psi) |
| pH Range Continuous Operation | 2-11 |
| pH Range Short-Term Cleaning | 1-13 |
| Maximum Feed SDI(SDI15) | 5.0 |
| Free Chlorine Tolerance | < 0.1 ppm |
Permeate flow for individual elements may vary ±15 percent from the value specifed.
Active membrane area guaranteed ±4%.
Stabilized salt rejection is generally achieved within 24-48 hours of continuous use; depending upon feedwater characteristics and operating conditions.
