Durable Cation-Exchange Membrane (CEM, PF-E27) for Wastewater Electrodialysis, CWEDDCEM
Use your own shipping account?
We support FedEx, UPS, and DHL third-party billing for institutional customers.
Place your order first, then email shipping@echemsupplies.com with your account details and order number. We'll generate the label using your account and refund your shipping charges, less a handling fee.
When selecting a cation-exchange membrane (CEM) for wastewater electrodialysis (ED), durability goes beyond standard electrical resistance. Industrial and municipal wastewater streams present severe challenges, including organic fouling, surfactant adsorption, mineral scaling (e.g., Ca^{2+}, Mg^{2+}), and aggressive chemical cleaning-in-place (CIP) cycles.
The key performance traits for wastewater durability: (1) Anti-Fouling Surface Morphology: Smooth, hydrophilic surfaces minimize the electrostatic or hydrophobic adsorption of foulants (such as humic acids, proteins, and linear alkylbenzene sulfonates) that cause electrical resistance to spike during long-term runs. (2) Dimensional Stability Across Osmotic Shifts: Wastewater feeds frequently experience drastic concentration fluctuations. A robust CEM must resist excessive swelling and shrinking to prevent mechanical stress, micro-cracking, or seal leakage in the stack. (3) Resistance to Chemical Cleaning (CIP): Must withstand frequent exposure to acids (HCl, citric acid), bases (NaOH), and oxidizing sterilizing agents (such as dilute hypochlorite or hydrogen peroxide) without polymer degradation.
| Part Number |
CWEDDCEM (C-WED-DCEM) |
| Brand Series |
CEM (PF-E27) |
| Membrane Thickness (Wet) |
170 ~ 190 um ePTFE reinforce layer is presented |
| Electrical Resistance |
< 2.2 Ω*cm2 |
| Maximum Current |
5800 A/m2 |
| Exchange Capacity |
>1.0 mmol/g |
| Operation Temperature & pH |
<90°C, pH: 0-14 |
| Notes |
The mark side must face to anode. The membranes should be immersed in the 2-4% Na2CO3/NaHCO3 solution or 0.4% NaOH solution. Keep it in hydration status. |
| Package Grade |
L10-30cm*W10-30cm/pcs/pack |
Reference: