INTRODUCTION
The prepared polypiperazine composite NF membrane element had better performance of selection separation. It can remove effectively almost all bacteria, viruses, microorganisms, macromolecular organics, and antibiotics, pesticides, pesticide residues and other small molecular organics, heavy metals and most divalent and multivalent cations from solution and water, while retaining some sodium, potassium, calcium, magnesium, metasilicic acid, other beneficial nutritional minerals and small molecular substances. It is applicable for the preparation of directly drinking water, mineral water, softened water, partial desalination and decolorization treatment of wastewater with high salinity or organic concentration, separation and purification of some inorganic salts and organic materials.
NF membrane products have the advantage of low operating pressure, which can greatly save the operating costs of equipment or system. It is widely used in drinking water, food and beverage, medicine, reuse of treated water, wastewater treatment and other industries.
SPECIFICATIONS & PARAMETERS
| Model | Active Area ft 2 (m 2) |
Permeate Flow Rate GPD(m 3 /d) |
Stabilized Salt Rejection(%) |
Solution Type |
| NF2-4040 | 85(7.9) | 2600(9.8) | 30-50 | NaCl |
| 2200(8.3) | >97 | MgSO 4 |
TEST CONDITION
Standard Test Conditions:
| Solution | Temperature(℃) | pH | Operating Pressure psi(MPa) |
Recovery(%) |
| 500mg/L NaCl | 25 | 7.5-8.0 | 70(0.48) | 15 |
| 2000mg/L MgSO 4 | 25 | 6.5-7.0 | 70(0.48) | 15 |
Permeate Flow Fluctuation Range: ±15%
Membrane Element Operating Limits:
| Maximum Operating Pressure | 600 psi(4.14MPa) |
| Maximum Feed Flow Rate | 3.6m3/h |
| 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 | 1-13 |
| Maximum Element Pressure Drop | 15psi(0.1MPa) |
Product classification
Nanofiltration Membrane Elements
Keywords
Nanofiltration Membrane Elements
NF2-4040
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