Alumina Ultrafiltration Ceramic Membrane

Alumina Ultrafiltration (UF) Ceramic Membranes are high-performance inorganic filtration elements manufactured from high-purity α-alumina (Al₂O₃) through advanced ceramic processing and high-temperature sintering technology.

Designed with a multi-layer asymmetric structure, these membranes combine a highly porous support layer with an ultra-fine separation layer, providing exceptional mechanical strength, excellent permeability, and precise molecular separation performance.

With pore sizes ranging from 2 nm to 100 nm, alumina ultrafiltration membranes bridge the gap between microfiltration and nanofiltration. They are specifically engineered to separate macromolecules, proteins, colloids, emulsified oils, bacteria, and viruses while allowing water and low-molecular-weight substances to pass through efficiently.

Compared with polymeric ultrafiltration membranes, alumina ceramic UF membranes offer significantly longer service life, superior chemical stability, excellent cleaning performance, and reliable operation under harsh industrial conditions.

The ultra-fine ceramic separation layer provides highly accurate particle retention while maintaining excellent permeate flux.

Ideal for separating:

• Macromolecules
• Proteins
• Colloids
• Viruses
• Emulsified oil
• Fine suspended solids

Manufactured from inorganic α-alumina, the membrane demonstrates outstanding resistance to:

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

Suitable for aggressive industrial process streams where polymer membranes may rapidly deteriorate.

The rigid ceramic structure provides:

• Excellent pressure resistance
• High abrasion resistance
• Stable dimensional accuracy
• Long-term operational reliability

The membrane withstands repeated backwashing and intensive cleaning without structural degradation.

Unlike polymer ultrafiltration membranes, alumina ceramic UF membranes can operate under elevated temperatures and tolerate steam sterilization.

Maximum recommended operating temperature:

≤350°C

The smooth ceramic surface minimizes contaminant adhesion and supports efficient cleaning.

Compatible cleaning methods include:

• Acid cleaning
• Alkali cleaning
• Oxidant cleaning
• High-pressure backwashing
• Steam sterilization

These cleaning methods enable rapid flux recovery and extended membrane service life.

The robust ceramic structure is highly resistant to chemical corrosion, thermal stress, and mechanical wear, providing a significantly longer operating lifetime than conventional polymeric ultrafiltration membranes.

Standard ultrafiltration pore sizes include:

• 2 nm
• 5 nm
• 10 nm
• 20 nm
• 50 nm
• 100 nm

Customized pore sizes are available for specific separation requirements.

Alumina ultrafiltration ceramic membranes are widely used in precision liquid separation and concentration processes.

• Protein concentration
• Enzyme recovery
• Cell separation
• Fermentation broth purification
• Biomass concentration

• Pharmaceutical filtration
• Biological product purification
• Vaccine production
• Sterile process filtration
• Intermediate purification

• Gelatin concentration
• Dairy protein concentration
• Beverage clarification
• Natural extract purification
• Functional ingredient recovery

• Fine colloid removal
• Catalyst recovery
• Polymer purification
• Emulsion separation
• Fine chemical production

• Industrial wastewater reuse
• Oily wastewater treatment
• Emulsified oil removal
• Advanced wastewater polishing

Compared with conventional polymer ultrafiltration membranes, alumina ceramic UF membranes provide:

• Precise molecular-level separation
• Excellent removal of proteins, colloids, viruses, and emulsified oil
• Outstanding chemical and thermal stability
• Superior mechanical durability
• Long service life
• Stable permeate flux
• Excellent cleaning and regeneration capability
• Lower total lifecycle cost

These advantages make alumina ultrafiltration ceramic membranes an ideal choice for demanding industrial separation processes requiring high reliability, precise filtration, and continuous operation.

We offer customized membrane solutions to meet specific process requirements, including:

• Pore size selection
• Membrane length
• Channel configuration (1–241 channels)
• Outer diameter
• Membrane module design
• Housing material
• Complete filtration systems

Our engineering team can recommend the optimal membrane configuration based on your feed composition, separation objectives, and operating conditions.

Looking for a reliable Alumina Ultrafiltration Ceramic Membrane solution?

Our specialists can help you select the appropriate pore size, membrane configuration, and complete ceramic membrane system for your ultrafiltration application.