SINOMEMB® Sea Water SNSW Series RO membrane elements
SINOMEMB ® quality water desalination (SNSW) series products, through to the desalination membrane ultrafiltration support layer structure and thickening desalting adjustment, And the selection of water channel cloth for fresh water production in rolling process, make its tolerance, the working conditions of high pressure high pollution water desalination membrane, the success of the product membrane marked in the produce membrane technology of SINOMEMB (Beijing) company is more on a step,Continue to advance to the field of high concentration and difficulty.
8.1 Brief introduction
SINOMEMB® Seawater Desalination series (SNSW) membrane elements are suitable for seawater with salt content above 20,000 PPM and high concentration Brackish water.It by optimizing the membrane and structure of membrane element and fully automatic, high precision manufacturing process, reducing the overall fouling the surface of the membrane, significantly reduce the operation cost,it has the stable take off rate of boron and desalting rate, low voltage high water yield and the characteristics of investment operation cost is low, It can ensure that the first level of penetrationin some specific system in some specific system ,it can get drinking water from seawater.This kind of membrane element can be used in various industrial water treatment fields such as seawater desalination, desalination of extremely high concentration Brackish water, seawater recycling and recharge water treatment of power plants, as well as wastewater reuse, landfill leachate treatment, food processing and other applications.
8.2Specification
| Model |
Effective membrane area
ft2(m2)
|
GPD(m3/d) |
Stable desalination rate(%) |
Min desalination rate(%) |
Stable removal rate(%) |
| SNSW-2514 |
6.5(0.6) |
150(0.6) |
99.4 |
99.2 |
90 |
| SNSW-2521 |
13(1.2) |
300(1.1) |
99.4 |
99.2 |
90 |
| SNSW-2540 |
29(2.8) |
700(2.6) |
99.4 |
99.2 |
90 |
| SNSW-4021 |
33(3.1) |
800(3.0) |
99.4 |
99.2 |
90 |
| SNSW-4040 |
85(7.9) |
1,950(7.4) |
99.75 |
99.6 |
91 |
| SNSW-8040 |
380(35.6) |
7000(26.5) |
99.7 |
99.6 |
91 |
| SNSW-8040-HF |
400(37.2) |
7500(28) |
99.82 |
99.65 |
93 |
8.3Test condition
Test pressure.................................................................................800psi (5.5Mpa)
Test liquid temperature..................................................................25℃
ppm................................................................................................32000ppm(NaCl),5ppm(Boron)
Test liquid PH value.......................................................................8
Recovery rate of single memb...............................2%(2514),8%(2540,4040,8040),4%(2521,4021)
8.4 Absolute Maximum Ratings
Max operating pressure of 8 inches and 4 inches......................1200psi(8.3Mpa)
Max operating pressure of 2.5-inch and other models..............1000psi(6.9Mpa)
Max feed flow of 8 inch memb...............................................75gpm(17 m3/h)
Maximum feed flow of 4 inches.............................................16gpm(3.6 m3/h)
Maximum feed flow of 2.5 inches..........................................6gpm(1.4 m3/h)
Max feed temperature.................................................................45℃
Max feed continuous operation temperature When PH > 10......35℃
Max feed SDI15..........................................................................5
Influent free chlorine concentration........................................＜0.1ppm
PH range of feed water during continuous operation.................2～11
PH range of inflow during chemical cleaning(30 Min)........1～13
Max pressure drop of single memb............................15psi(0.1Mpa) (2540,2514,4021,4040,2521,8040)
............................................13psi(0.09Mpa) (8040HF)
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