Product Introduction
The brackish water series elements are suitable for desalination of surface water, groundwater, and other water sources with salinity levels below 10,000 mg/L. They are also applicable for desalination and decolorization of water with higher organic and microbial content. Compared to conventional brackish water membranes, the fouling-resistant brackish water membrane series features wider flow channels and improved fouling resistance.
Product Specifications and Performance Parameters Table
|
Model |
Stable Salt Rejection Rate |
Minimum Salt Rejection Rate |
Water Production Rate |
Effective Membrane Area |
Feedwater Screen |
Test Solution Concentration |
Test Pressure |
|||
|
% |
% |
GPD |
m³/d |
ft2 |
m2 |
mil |
mg/L |
psi |
MPa |
|
|
BW-400 |
99.5 |
99.3 |
11500 |
43.5 |
400 |
37.2 |
32 |
2000 |
225 |
1.55 |
Test Conditions: NaCl solution, temperature 25°C, pH value 7.5-8.0, recovery rate 15%; water production variation range ±15%.
Operating Conditions
|
Maximum Operating Pressure |
600 psi (4.14 MPa) |
|
Maximum Feedwater Temperature |
45 ℃ |
|
Maximum Feedwater Flow Rate |
17.0 m3/h (8040)、3.6 m3/h (4040) |
|
Maximum Feedwater SDI (Silt Density Index) 15 |
5.0 |
|
Free Chlorine Tolerance |
0.1 mg/L |
|
Feedwater pH Range during Continuous Operation |
2-11 |
|
Feedwater pH Range during Chemical Cleaning (30 min) |
1-13 |
|
Maximum Allowable Pressure Drop per Membrane Element |
15 psi (0.10 MPa) |
1.The maximum temperature for continuous operation under pH conditions above 10 is 35°C.
2.Under certain conditions, the presence of free chlorine and other oxidants can cause premature membrane failure. It is recommended that users remove free chlorine through pre-treatment before it contacts the membrane.
