Brackish Water Series RO Membrane Elements
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Introduction |
BHM, is attached to the Global 500 enterprise CHEMCHINA, manufactures BW series RO membrane elements which are suitable for medium salinity water (TDS: 1000mg/L-10000mg/L), can be operated under a medium and low pressure, which are widely applied in pure water production, brackish water desalination, groundwater desalination, reclaimed water system etc.
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Membrane element performance |
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Model |
BW-8040-440 |
BW-8040-400 |
BWHP-8040-380 |
BW-4040 |
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Rejection rate (%) |
99.6 |
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Permeate flow m3/d(GPD) |
45（11,880） |
40（10,500） |
36 (9500) |
9.1（2,400） |
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Active membrane Area m2 (ft2) |
40.8（440） |
37.2（400） |
35.3（380） |
8.8（95） |
Note: The final stable rejection rate after testing 30 minutes as the standard rejection rate; the fluctuation range of permeate flow is 15%.
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Testing conditions |
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Pressure (Mpa/psi) |
1.55/225 |
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Inflow concentration(mg/L) |
2000±50 |
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Temperature(゜C) |
25.0±1 |
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PH value |
7-8 |
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Recovery rate (%) |
15±1 |
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Maximum operating conditions |
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Pressure (Mpa/psi) |
4.2/600 |
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Temperature(゜C) |
45 |
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Inflow SDI |
5 |
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Residual chlorine concentration of inlet water(mg/L) |
0.1 |
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Inflow PH range during continuously operating |
3-10 |
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Inflow PH range during chemical cleaning |
2-12 |
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Max. pressure loss of single membrane element (Mpa/psi) |
0.10/15 |
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