BWLE-440 Membrane
Product Introduction
The low energy brackish water membrane series is suitable for desalination of surface water and groundwater sources with salt concentrations below 5,000 mg/L. It is also applicable for the removal of salts and color from water bodies with higher levels of organic matter or microorganisms. Compared to conventional brackish water membrane elements, this series can operate under lower pressure, significantly reducing system energy consumption.
Product Specifications and Performance Parameters
|
Model |
Stable Salt Rejection Rate |
Minimum Salt Rejection Rate |
Permeate Flow |
Effective Membrane Area |
Feed Spacer |
est Solution Concentration |
Test Pressure |
|||
|
% |
% |
GPD |
m³/d |
ft2 |
m2 |
mil |
mg/L |
psi |
MPa |
|
|
BWLE-440 |
99.4 |
99.2 |
12700 |
48.1 |
440 |
40.9 |
28 |
2000 |
150 |
1.03 |
Test Conditions ：NaCl aqueous solution, temperature 25 ℃, pH value 7.5–8.0, recovery rate 15%; permeate flow variation range ±15%.
Operating Conditions
|
Maximum Operating Pressure |
600 psi (4.14 MPa) |
|
Maximum Feed Water Temperature |
45 ℃ |
|
Maximum Feed Flow Rate |
17.0 m3/h (8040)、3.6 m3/h (4040) |
|
Maximum Feed Water SDI15 |
5.0 |
|
Free Chlorine Tolerance |
0.1 mg/L |
|
Operating pH Range (Continuous Operation) |
2-11 |
|
Cleaning pH Range (30 minutes max) |
1-13 |
|
Maximum Allowable Pressure Drop per Element |
15 psi (0.10 MPa) |
