Cerahelix offers two different molecular cutoff membranes to meet your specific needs by their ability to separate different size molecules (size measured in Daltons): Cerahelix NanoHelix™ (700 Da) and PicoHelix™ (400 Da).
Advantages of Cerahelix ceramic nanofiltration membranes over existing competing technologies include lower operational costs, longer life, higher efficiency, minimal fouling and no need for pre-treatment. This results in lower CapEx, OpEx and sustaining capital costs compared to other technologies available in the market.
Cerahelix NanoHelix™
The NanoHelix is a colloidal sol-gel ceramic nanofiltration membrane that retains solutes down to a molecular weight cutoff of about 700 Da. The top layer can be designed to be either a TiO2 or TiO2/ZrO2 mixed-oxide amorphous ceramic. It is manufactured in 19 and 85 channel geometries. The NanoHelix is suitable for a wide variety of nanofiltration applications.
| Pure Water Permeability | 15-30 LMH-B (L·m-2·hr-1·bar-1) |
| Molecular Weight Cutoff | Nominal 700 Daltons |
| Feed | pH 2-10 |
| Operating Temperature | 10 - 70°C |
| Recommended Crossflow Velocity | 2 m/s to 4 m/s |
| Recommended Applied Pressure | 20 bar |
| Maximum Applied Pressure | 30 bar |
| Typical TDS Range | 0 - 50,000 ppm |
Cerahelix PicoHelix™
The PicoHelix is a DNA-templated ceramic nanofiltration membrane that retains solutes down to a molecular weight cutoff of about 400 Da. The top layer is a TiO2/ZrO2 mixed-oxide amorphous ceramic. It is available in 19 and 85 channel geometries.
| Pure Water Permeability | 15-30 LMH-B (L·m-2·hr-1·bar-1) |
| Molecular Weight Cutoff | Nominal 400 Daltons |
| Feed pH | 2-10 |
| Operating Temperature | 10 - 70°C |
| Recommended Crossflow Velocity | 2 m/s to 4 m/s |
| Recommended Applied Pressure | 20 bar |
| Maximum Applied Pressure | 30 bar |
| Typical TDS Range | 0 - 50,000 ppm |