CSM NF membranes are capable of selectively rejecting divalent ions, making it ideal for a wide range of applications. Typical uses include production of food & beverage, dye recovery, and water softening and removal of specific impurities (i.e. color, DBP, THM) for potable use.
CSM NF Membranes are constructed with either a polyamide or piperazine thin-film layer, and are available in various sizes.
Inquire within for custom-engineered solutions.
Product Type
Nanofiltration Membrane
Dimension
40 in x 4.0 in
Product Specifications
| Product Flow Rate | Ionic Rejection (%) | |
| (GPD) | (m³/d) | Monovalent / Divalent |
| 2,100 | 7.9 | 20–40 |
• Permeate flow may vary ±15%.
• Tested at applied pressure 75 psi (0.5 MPa), 15% recovery, 77°F (25°C), pH 6.5–7.0
• Monovalent ion rejection: 2,000 mg/L NaCl
• Divalent ion rejection: 500 mg/L CaCl₂
• MgSO₄ rejection is 97.0% (same test conditions as those used for monovalent ion rejection)
Maximum Operating and Cleaning Limits
| Pressure Drop / Element | Pressure Drop / 240" Vessel | Operating Pressure | Feed Flow Rate | Operating Temperature | Operating pH Range | CIP pH Range | Turbidity NTU | SDI | Chlorine Concentration |
| 15 psi (0.1 MPa) | 60 psi (0.41 MPa) | 600 psi (4.14 MPa) | 18 gpm (4.1 m³/hr) | 113°F (45°C) | 2.0–11.0 | 1.0–13.0 | 1.0 NTU | SDI 5 | < 0.1 mg/L |