SW Series – Seawater Desalination RO Membranes
HRLE- High Rejection & Low Energy SWRO Membranes
SW-HRLE series are aimed at the problem of high energy consumption of conventional seawater desalination membranes. The membrane performance has been upgraded again to achieve high rejection rate while reducing operating energy consumption and saving costs for users.
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Help the system to operate at lower energy consumption, or obtain higher flux under the same pressure
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High rejection rate, high flux and high boron removal
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Non-oxidation post-treatment process ensure the service life and chemical stability of membranes
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Adopt short membrane sheet length design to increase the utilization rate of the effective area, make the flux distribution on the membrane surface more uniform, and reduce the fouling rate of membranes
Product Dimensions
Model
A inch (mm)
B inch (mm)
C inch (mm)
D inch (mm)
SW-8040-400HRLE
40(1,016)
/
1.125(29)
7.9(201)
SW-8040-440HRLE
40(1,016)
/
1.125(29)
7.9(201)
SW-4040-82HRLE
37.9(963)
1.05 (26.7)
0.75(19)
3.9(99)
Product Specifications
Model
Effective Membrane ft² (㎡)
Stabilized Rejection Rate(%)
Minimum Rejection Rate(%)
Stabilized Boron Rate(%)
Flux, gpd (m³/d)
SW-8040-400HRLE
400(37.2)
99.80
99.65
92.0
7400(28)
SW-8040-440HRLE
400(41)
99.80
99.65
92.0
7900(30)
SW-4040-82HRLE
82(7.6)
99.70
99.60
/
1600(6.1)
Operating and Cleaning Limits
- Maximum Operating Pressure 83 bar (1200 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(SDI ) 5.0
- Free Chlorine Tolerance < 0.1 ppm
Notes
- Permeate flow for individual elements may vary ±15 percent from the value specified.
- 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.