Wastewater Separation Series
FFM’s Nanofiltration membrane series designed for Hard-to-treat wastewater,which features exceptional selective ion rejection, effectively differentiating between mono- and divalent ions.
This membrane excels in water softening applications for municipal, groundwater, surface water, and industrial wastewater systems, as well as in complex molecular separation processes across food and pharmaceutical industries.
FFM’s Nanofiltration membrane series designed for Hard-to-treat wastewater,which features exceptional selective ion rejection, effectively differentiating between mono- and divalent ions.
This membrane excels in water softening applications for municipal, groundwater, surface water, and industrial wastewater systems, as well as in complex molecular separation processes across food and pharmaceutical industries.
| Model | effective membrane area ft² （m²） |
test pressure psi （bar） |
water production gpd （m3/d） |
Stable desalination rate MgSO4 (NaCL)% |
| FFM2521NH | 14（1.3） | 75（5） | 350 （1.3） | 97 （50-70） |
| FFM2540NH | 30（2.8） | 75（5） | 750 (2.8) | 97 （50-70） |
| FFM4021NH | 36（3.4） | 75（5） | 950 (3.6) | 97 （50-70） |
| FFM4040NH | 85（7.9） | 75（5） | 2000 （7.6） | 98 （50-70） |
| FFM8040NH-375 | 375（34.9） | 75（5） | 10000 （37.8） | 99 （>85） |
| FFM8040NH-400 | 400（37.2） | 75（5） | 10500 （39.7） | 99 （>85） |
| FFM8040NH-440 | 440（38.1） | 75（5） | 11500 （43.5） | 99 （>85） |
Testing conditions: The testing concentration is 2000ppm MgSO4 aqueous solution and 2000ppm NaCl aqueous solution; The temperature is 25 ℃; The recovery rate of 2521/4021 specification is 8%, and the recovery rate of 2540/4040/8040 specification is 15%;
The water production of a single membrane element may vary within a range of+/-20%.
After product updates, the performance parameters of membrane components may change.
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FFM2521NH FFM2540NH FFM40210NH FFM4040NH FFM8040NH-375 FFM8040NH-400 FFM8040NH-440
