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 Permeability15-30 LMH-B (L·m-2·hr-1·bar-1)
Molecular Weight CutoffNominal 700 Daltons
FeedpH 2-10
Operating Temperature10 - 70°C
Recommended Crossflow Velocity2 m/s to 4 m/s
Recommended Applied Pressure20 bar
Maximum Applied Pressure30 bar
Typical TDS Range0 - 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 Permeability15-30 LMH-B (L·m-2·hr-1·bar-1)
Molecular Weight CutoffNominal 400 Daltons
Feed pH2-10
Operating Temperature10 - 70°C
Recommended Crossflow Velocity2 m/s to 4 m/s
Recommended Applied Pressure20 bar
Maximum Applied Pressure30 bar
Typical TDS Range0 - 50,000 ppm