Tanal
General Information
Membrane BW 8040 reverse osmosis membrane elements are developed for reverse osmosis plant managers and operators dealing with brackish water with pre-treatment.
Membrane BW 8040 reverse osmosis membrane element provides consistency, high permeate water quality, high performance and productivity, and long service life.
Features & Advantages
- Provides high-quality permeate water
- Stable salt rejection rate and high permeate flow rate
- Optimized design, good resistance to fouling results in long service life
- High chemical tolerance for cleaning with highly effective cleaning performance
- Simple and economical element replacement
Applications
- Industrial pure water
- Industrial wastewater reuse
- Slightly contaminated water
Specifications
-
Configuration: Spiral wound element
-
Membrane Polymer: Polyamide thin-film composite
Performance
|
Element Model |
Membrane Active Area |
Feed Spacer |
Permeate Flow Rate* |
Stabilized Salt Rejection** |
Minimum Salt Rejection |
|
TFBW-8040 |
400 (37.2) |
28 (0.712) |
10,500 (39.7) |
99.6% |
99.4% |
Standard test conditions:
The above performance is initial(data record after 30 minutes of operation), based on the following conditions:
2,000 ppm NaCl solution
225 psi (15.5 bar) operating pressure
25°C (77°F) operating temperature
15% permeate recovery
7.5-8 pH range
*Permeate flow for individual elements may vary but will be no more than ±15%.
**Stabilized salt rejection is generally achieved within 24-48 hours of continuous use; depending on feed water characteristics and operating conditions.
Element Dimensions
|
Length A |
Diameter B |
Permeate tube inner diameter C inch (mm) |
|
40 (1,016) |
7.9 (201) |
1.125 (28.6) |
Operating and Cleaning Limits
|
Maximum Operating Pressure |
600 psi (41 bar) |
|
Maximum Operating Temperature |
45°C (113°F) |
|
Maximum Chlorine Concentration |
0.1 ppm |
|
pH Range, Continuous |
2-11 |
|
pH Range, Cleaning |
1-13 |
|
Maximum Feed SDI (15 mins) |
5 |
|
Maximum Element Pressure Drop |
15 psi (1 bar) |
|
Maximum Feed Flow |
17 m3/h |
|
Minimum Ratio of Concentrate to Permeate Flow for Each Element |
5:1 |
The limits shown above are for membrane bw 8040 in general applications. For specific projects, operating at more conservative values may ensure the best performance and longest life of the membrane element.
