SW series of aromatic polyamide compound membrane element is applicable to desalination of seawater. By optimizing the structure of membrane element, the SW series increases the permeate flow, and requires fewer elements for same permeate flow. It is characterized by low operating pressure, low investment in equipment, excellent rejection rate and reliable performance, and its high salt rejection can ensure producing the drinking water from seawater simply through one-pass PR design. Applicable to treatment of seawater and high-concentration brackish water, the SW series of membrane element is designed for various industrial water treatment, such as seawater desalination, high-concentration brackish water desalting, boiler water replenishment for power plant, etc., and is also applicable to various fields such as recycling of wastewater, concentration and reclamation of such substances with high additional value as foodstuff, pharmaceuticals, etc.

 Specifications and Major Properties

Model	Active Membrane Area ft2(m2)	Average Permeated Flow GPD (m3/d)	Stable Rejection Rate (%)	Minimum Rejection Rate (%)
SW21-8040	330(30.6)	5000(18.9)	99.7	99.5
SW22-8040	380(35.2)	6000(22.7)	99.7	99.5
SW21-4040	80(7.4)	1400(5.3)	99.5	99.2
SW11-4021	33(3.1)	750(2.8)	99.2	99.0
SW11-2521	12(1.1)	200(0.76)	99.2	99.0
SW11-2540	28(2.6)	500(1.89)	99.2	99.0

 

Testing Conditions:    Testing Pressure................................800 psi (5.5Mpa)

                                   Temperature of Testing Solution .................25 degree

                                   Concentration of Testing Solution (NaCl).... 32800ppm

                                   pH Value of Testing Solution...................................7.5

                                   Recovery Rate of Single Membrane Element...........8% (8040-size, 4040-size and 2540-size) 4% (4021-size and 2521-size)

 

 

 

Max. Working Pressure.........................................................1000psi (6.9Mpa)

Max. Feedwater Flow..........................................75gpm (17 m³/h) (8040-size)