Seawater Reverse Osmosis (RO) Elements
TFS Series -Seawater Desalination RO Membranes
Transfilm TFS series are high-end RO membranes featuring a supporting layer with high compression resistance, thick and dense flawless thin film layer. It has good wear and chemical degradation resistance. The membrane element does not need postprocessing during the manufacturing. It tolerates a wide range of pH, which enables more efficient and rougher cleaning using regular acid and base, therefore it has high cleaning efficiency. The membrane system can operate in long term under lower pressure due to thorough cleaning, therefore the membrane performs better during its service life. It can significantly reduce operation costs, and bring the best long-term economy to the seawater desalination system.
· High rejection rate of salts
· High compression and fouling resistance and high cleaning efficiency
· Cost-saving of seawater desalination system
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(SDI15) 5.0
· Free Chlorine Tolerance < 0.1 ppm
· Permeate flow for individual elements may vary ±15 percent from the value specifed.
· Active membrane area guaranteed ±4%.
· Stabilized salt rejection is generally achieved within 24-48 hours of continuous use; depending uponfeedwater characteristics and operating conditions.