INTRODUCTION
Residential nanofiltration membrane elements are generally suitable for treatment of raw water sources with a salinity less than 500mg/L.It has a high removal rate for almost all bacteria, viruses, microorganisms, macromolecular organics, antibiotics, pesticides, pesticide residues and other small molecular organics, heavy metals and most divalent and multivalent ions in water of solutions, while retaining some sodium , potassium, calcium, magnesium, metasilicic acid, other beneficial nutritional minerals and small molecular substances.
Nanofiltration series products have extremely low operating pressure, which can greatly save the operating costs of equipment. It is mainly used for small water purification devices such as household water purification, drinking water in community office areas.
SPECIFICATIONS & PARAMETERS
| Model | Active Area ft 2 (m 2) |
Permeate Flow GPD(m 3 /d) |
Rejection Rate(%) | Solution |
| NF-1812 | 4.2(0.39) | 100(0.38) | 30-50 | NaCl |
| >96 | MgSO 4 |
TEST CONDITION
Standard test conditions:
| Solution | Temperature (℃) | pH | Operating Pressure psi(MPa) |
Recovery (%) |
| 250mg/L NaCl | 25 | 7.5-8.0 | 60（0.41） | 15 |
| 250mg/L MgSO 4 | 25 | 6.5-7.0 | 60（0.41） | 15 |
Permeate flow fluctuation range: ±15%
Membrane element operating limits:
| Maximum Operating Pressure | 300 psi(2.07MPa) |
| Operating Temperature Range | 45 ℃ |
| Maximum Feed SDI 15 | 5.0 |
| Free Chlorine Tolerance | 0.1mg/L |
| pH Range, Continuous Operation | 3-10 |
| pH Range, Short-Term Cleaning | 2-12 |
| Maximum Element Pressure Drop | 10psi(0.07MPa) |
Product classification
NF Membrane Elements
Keywords
NF Membrane Elements
NF-1812
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