The SiC ceramic membrane (SIC ) is made based on recrystallization technology with high porosity and has a series of microfiltration and ultrafiltration. The support layer, intermediate layer, and filtering layer are all in pure silicon carbide.
SiC ceramic membrane has numerous advantages, such as high strength, good thermal shock stability, large flux, low operating cost, and long service life. It is considered as a new generation of ceramic membrane for the future.
The products have excellent effects in very demanding environment: strong acids/bases and oily wastewater, etc. In addition, the SiC membrane also has an ideal effect in the chemical, petroleum and food industries. Its long lifespan and good chemical stability help to reduce your operational costs and optimize filtering results.
Item | SiC membrane | Alumina membrane | Metal membrane | Polymer membrane |
Base material | 100% silicon carbide | Oxide | Meta | Polymer |
Membrane material | 100% silicon carbide | Oxide | Oxide | Polyethersulfone or PVDF |
Structure | Asymmetric | Asymmetric | Asymmetric | Asymmetric |
Hardness | High | High | High | Low |
Temperature tolerance | 800℃ | 110℃ | 200℃ | 40℃ |
Max negative pressure | 10bar | 6bar | 10bar | -- |
Max positive pressure | 100bar | 6bar | 70bar | 3bar |
Operation pressure | 1~2 bar | 3~4bar | 4~6bar | 2~3bar |
Pure water flux | 3~4m³/(m2.h) | 0.25~3m³/(m2.h) | 0.25~0.5m³/(m2.h) | 0.08~0.12m³/(m2.h) |
Advantages
1)Long service life of more than 5 years;
2)Good chemical resistanc,anti-acid, alkali and organic solvent
3)Thermally stable,withstand 800℃
4)50% porosity ensures big flux
5)More hydrophilic, superior oil/water separation performance
6)Easy to install ,and less installation space
7)Lower operation pressure(1-2bar),less power consumption
8)Easy cleaning, high recovery rate and recycling after backwash
9)High hardness (between corundum and diamond)and abrasion resistance
10)No secondary contamination,no negative impact on filtered medium