Water Treatment Nanofiltration NTF Series Membrane Elements
Detailed description
(1) Product Positioning
The NTF series membrane elements are nanofiltration membranes specifically developed for industrial water treatment, with key applications in leachate treatment, wastewater decolorization, reduction of high-salinity brine, water softening, and denitrification.
(2) Product Features
Industry-leading water production capacity, with high output even under low-pressure operating conditions.
It exhibits high removal rates for total organic carbon (TOC) and sulfate, while permitting a lower degree of hardness ion passage.
It offers the broadest pH cleaning range and can withstand multiple acid–alkali washes in cases of severe fouling.
(3) Product Performance
| Model number | Average water production rate GPD (m 3 /d) | Stable desalination rate (%) | Effective membrane area ft 2 (m 2) |
Inlet grid thickness (mil) |
|
| MgSO4 | CaCl2 | ||||
| NTF40-8040 | 12000 (45.4) | 98.5 | 40–60 | 400 (37.2) | 31 31 34 |
| NTF80-8040 | 7500 (28.4) | 98.5 | 80–90 | ||
| NTF90-8040 | 8000 (30.3) | 98.5 | 90–95 | ||
| NTF40-4040 | 2500 (9.5) | 98.5 | 40–60 | 85 (7.9) | 31 31 34 |
| NTF80-4040 | 2000(7.6) | 98.5 | 80–90 | ||
| NTF90-4040 | 1600(6.1) | 98.5 | 90–95 | ||
(a) Standard test conditions: 500 ppm CaCl2 / 2000 ppm MgSO4, 70 psi (4.8 bar), 25°C, pH = 7–8, recovery rate of 15%.
(b) The water production of a single membrane element may vary within a range of ±15%.
(c) Operating and Cleaning Limits
| Maximum operating pressure | 600 psi (4.14 MPa) | Permitted free chlorine concentration | < 0.1 ppm |
| Maximum inlet water temperature | 45℃ | Influent pH range during continuous operation | 3~10 |
| Maximum inflow rate | 17.0m3 /h (8040), 3.6m 3 /h (4040) | Feed water range during chemical cleaning | 1~13 |
| Maximum feed water SDI15 | 5 | Maximum allowable pressure drop for a single membrane element | 15 psi (0.1 MPa) |
Keywords: Water Treatment Nanofiltration NTF Series Membrane Elements
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