Alumina Microfiltration Ceramic Membrane

Alumina Microfiltration Ceramic Membranes are high-performance inorganic filtration elements manufactured from high-purity α-alumina (Al₂O₃) through precision extrusion, advanced ceramic forming, and high-temperature sintering technology.

The membrane adopts a multi-layer asymmetric structure consisting of a porous support layer, transition layer, and precision separation layer. This optimized architecture combines excellent mechanical strength with high permeability, allowing stable operation under demanding industrial conditions while maintaining precise particle separation.

Designed for microfiltration (MF) applications, alumina ceramic membranes are available with pore sizes ranging from 0.1 μm to 5 μm, making them suitable for removing suspended solids, bacteria, fine particles, and emulsified substances from a wide variety of process liquids.

Compared with conventional polymeric membranes, alumina ceramic membranes provide significantly longer service life, superior chemical resistance, higher operating temperatures, and excellent cleaning performance, making them an ideal solution for continuous industrial filtration.

The asymmetric pore structure minimizes flow resistance while maintaining high separation efficiency, resulting in excellent permeate flux and lower operating costs.

Alumina ceramic membranes exhibit excellent resistance to:

• Strong acids
• Strong alkalis
• Oxidizing chemicals
• Organic solvents

They can operate reliably in highly corrosive industrial environments where polymer membranes may rapidly degrade.

Manufactured from dense ceramic materials, the membrane offers:

• High compressive strength
• Excellent abrasion resistance
• Superior pressure resistance
• Stable dimensional accuracy

The robust ceramic structure withstands frequent backwashing and long-term continuous operation.

Unlike organic membranes, alumina ceramic membranes can operate at elevated temperatures and tolerate steam sterilization, making them suitable for demanding industrial processes.

Maximum recommended operating temperature:

≤350°C

The smooth ceramic surface reduces the adhesion of contaminants and allows efficient removal of deposited materials during cleaning.

The membrane supports:

• Chemical cleaning
• High-pressure backwashing
• Hot water cleaning
• Steam sterilization

allowing stable long-term performance with minimal flux decline.

Because the ceramic structure is highly resistant to chemical attack and mechanical wear, alumina microfiltration membranes typically offer a significantly longer operational lifetime than polymeric membranes, helping reduce replacement frequency and maintenance costs.

Standard microfiltration pore sizes include:

• 0.1 μm
• 0.2 μm
• 0.5 μm
• 0.8 μm
• 1.2 μm
• 5 μm

Custom pore sizes are available upon request for specific separation requirements.

• Industrial wastewater treatment
• Municipal water treatment
• Water reuse systems
• Drinking water purification
• Pretreatment before reverse osmosis (RO)

• Fruit juice clarification
• Wine filtration
• Sugar solution purification
• Dairy processing
• Beverage filtration

• Fermentation broth clarification
• Cell removal
• Biomass recovery
• Enzyme production
• Microbial separation

• Catalyst recovery
• Fine chemical filtration
• Pigment recovery
• Process liquid clarification
• Solid-liquid separation

• Oil-water separation
• Cutting fluid recycling
• Lubricant purification
• Emulsion treatment

Compared with conventional polymeric microfiltration membranes, alumina ceramic membranes provide several significant advantages:

• Longer service life
• Higher mechanical strength
• Excellent chemical resistance
• Stable high-temperature operation
• Superior cleaning performance
• High and stable permeate flux
• Lower lifetime operating costs

Their outstanding durability and reliable separation performance make them a preferred solution for continuous industrial filtration systems where membrane longevity and process stability are critical.

To meet different process requirements, we offer a wide range of customization options, including:

• Pore size selection
• Membrane length
• Channel configuration (1–241 channels)
• Outer diameter
• Module housing material
• Connection type
• Complete membrane module assemblies

Our engineering team can recommend the most suitable membrane configuration based on your feed characteristics, operating conditions, and filtration objectives.

Looking for a reliable Alumina Microfiltration Ceramic Membrane solution?

Contact our technical specialists for customized membrane selection, module design, and complete ceramic membrane filtration systems tailored to your application.