BW-440HR Membrane
Product Introduction
The brackish water series membrane elements are suitable for desalination of surface water and groundwater sources with salt concentrations below 10,000 mg/L. They are also applicable for desalination and decolorization of water bodies with higher organic or microbial content. Compared with conventional brackish water membranes, the anti-fouling brackish water membrane elements have a wider flow channel and higher fouling resistance.
Product Specifications and Performance Parameters
|
Model |
Stable Salt Rejection Rate |
Minimum Salt Rejection Rate |
Permeate Flow |
Effective Area |
Feed Spacer |
Test Solution Concentration |
Test Pressure |
|||
|
% |
% |
GPD |
m³/d |
ft2 |
m2 |
mil |
mg/L |
psi |
MPa |
|
|
BW-440HR |
99.7 |
99.6 |
12650 |
47.9 |
440 |
40.9 |
28 |
2000 |
225 |
1.55 |
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) |
