- Water Treatment[10]
- Contact Person : Ms. Zhao Mendy
- Company Name : Vontron Membrane Technology Co., Ltd.
- Tel : 86-10-58301837
- Fax : 86-10-58301890
- Address : Beijing,Beijing,Rm 1108, T1, Xihuan Guangchang, No.1 Xizhimenwai Street, Xicheng District
- Country/Region : China
- Zip : 100044
desalination
Brief Introduction
SW series of aromatic polyamide compound membrane element developed by Vontron Technology Co., Ltd. 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 performace, and its high salt rejection can ensure producing the drinking water from seawater simply through one-pass RO 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 | 85(7.9) | 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 °C
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)
Operation limits and Conditions
Max. Working Pressure.......................... 1000psi (6.9Mpa)
Max. Feedwater Flow.............................75gpm (17 m3/h) (8040-size)
16gpm (3.6 m3/h) (4040 and 4021)
6.0gpm (1.4 m3/h) (2521 and 2540)
Max. Feedwater Temperature................45°C
Max. Feedwater SDI...................5
Residual chlorine Concentration of Feedwater................<0.1ppm
pH Range of Feedwater during Continuous Operation.....3~10
pH Range of Feedwater during Chemical Cleaning...........2~12
Max. Pressure Drop of Single Membrane Element............15psi (0.1Mpa) (8040, 4040 and 2540)
10psi (0.07Mpa) (2521 and 4021)
Dimensions of Membrane Element
All dimensions are shown in: millimeter (inch)
Service Network
desalination
