SW Series – Seawater Desalination RO Membranes
XHR – Extra High Rejection SWRO Membranes
SW-XHR series are based on the production process of SW-HR series, which increases the density of the sheet and further upgrades the rejection rate. The membrane elements have extra high rejection rate and can maintain high stability in long-term operation.
-
Increased density of the sheet effectively improve the rejection rate of membranes
-
High boron removal rate and high rejection rate
-
Non-oxidation post-treatment process ensure the service life and chemical stability of membranes
-
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
Product Specifications
Flux and rejection rate is based on the following standard test conditions: 5.5 MPa (800 psi) pressure, 77°F (25°C), 32000 ppm NaCl solution and pH 8 for feedwater, and 8% recovery.
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.