High Rejection NF Membrane Elements
MAYENCE® High Rejection NF Membrane
MAYENCE HVNF series is a high-performance nanofiltration membrane. It is designed for removing organics, bacteria, viruses and make water softening and decoloring, and reduce THM.
MAYENCE HVNF series nanofiltration membrane has the advantage of low operating pressure, high permeate flow, low energy and equipment investment requirement .
Performance parameter
Type |
Operate Pressure |
Capacity |
Normal rejection (%) |
Area |
Spacer |
||
MPa |
GPD |
NaCl |
MgSO4 |
m² |
ft² |
mil |
|
HV-NFR4040 |
0.48 |
2000 |
50-70 |
≧96 |
7.9 |
85 |
31 |
HV-NFR8040 |
0.48 |
10000 |
50-70 |
≧96 |
37 |
400 |
31 |
Test conditions
| Test pressure | 0.48Mpa |
Temperature of test solution |
77ºF (25℃) |
Concentration of test solution |
500ppm (NaCl) |
2000ppm (MgSO4) | |
PH of test solution |
7.5 |
Recovery rate per membrane |
15% |
Operation conditions
Max operation pressure 2.1Mpa
Max feed flow 16gpm(3.6m3/h)(HV-NFR4040)
75gpm(17m3/h)(HV-NFR8040)
Max feed water temperature 45℃
Max feed SDI 5
Feed Max residual chlorine concentration 0.1ppm
PH at continuous operation 3-10
Chemical cleaning PH range 2-12
Max pressure loss per membrane 15psi (0.1Mpa)
Ratio of Min Reject/Permeate 5:1
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