What Is a Zirconia Ceramic Membrane Tube?
A zirconia ceramic membrane tube is a tubular inorganic filtration element made with a porous ceramic support and a fine zirconia separation layer. It is used for microfiltration and ultrafiltration where polymer membranes may suffer from chemical attack, repeated CIP cleaning, solvent swelling, or unstable flux under harsh process conditions.
Technical Considerations for Zirconia Membrane Tubes
Zirconia Ceramic Membrane Tube delivers reliable filtration under extreme thermal, chemical, and mechanical conditions, making it suitable for use in continuous processing lines and corrosive liquid environments across industrial sectors.
| Property | Specification |
|---|---|
| Material Composition | ≥99.8% zirconium dioxide (ZrO₂), stabilized with Y₂O₃ or MgO |
| Membrane Structure | Asymmetric multilayer (support + selective skin) |
| Open Porosity | 35–45% |
| Mean Pore Size | 0.01–0.1 µm (UF/MF range) |
| Pure Water Flux | 400–800 L/m²·h·bar at 25 °C |
| Flexural Strength | ≥800 MPa |
| Compressive Strength | ≤1500 MPa |
| Thermal Operating Range | 5 °C to 850 °C (dry), ≤350 °C (wet) |
| Thermal Expansion Coefficient | 10.5 × 10⁻⁶ K⁻¹ |
| pH Resistance Range | 0–14 (continuous exposure) |
| Chemical Resistance | Stable in H₂SO₄, NaOH, NaClO, ethanol, acetone |
| Surface Roughness (Ra) | ≤0.2 µm (top layer) |
| Backwash Pressure Tolerance | ≤6 bar |
| Cleaning Compatibility | CIP/SIP, autoclave, NaOH, HNO₃, steam ≤150 °C |
| Service Life | >5 years in standard industrial duty |
When to Use Zirconia Membrane Tubes Instead of Polymer or Alumina Membranes?
Zirconia membrane tubes are selected when the filtration line needs stronger chemical resistance, repeated cleaning tolerance, and more stable pore structure than polymer membranes can provide. They are especially useful in feeds containing acids, alkalis, solvents, fine suspended solids, or high-fouling organic matter.
| Process Challenge | Why Zirconia Helps | Buyer Check Before RFQ |
|---|---|---|
| Frequent CIP cleaning | The ceramic structure helps resist swelling and chemical attack. | Provide cleaning agent, concentration, temperature, and cycle frequency. |
| Fine particle or catalyst recovery | Controlled pore grades support MF/UF separation. | Provide particle size, target retention, and feed viscosity. |
| Oily or high-COD wastewater | Inorganic ceramic surfaces tolerate aggressive cleaning better than many polymer filters. | Provide COD, oil content, solids load, and TMP range. |
| Solvent-containing streams | Zirconia can be considered where polymer membranes soften or deform. | Provide solvent type, concentration, and operating temperature. |
| Long operating cycles | A rigid ceramic tube can support repeated backwash and process cleaning. | Provide module design, seal type, and pressure conditions. |
Zirconia vs Alumina, SiC, and Polymer Membrane Tubes
| Membrane Material | Best Fit | Main Advantage | Selection Caution |
|---|---|---|---|
| Zirconia Ceramic | Fine clarification, aggressive cleaning, solvent or chemical separation | Strong chemical durability and stable pore structure | Cost is usually higher than alumina or polymer options. |
| Alumina Ceramic | General water and wastewater filtration | Cost-effective ceramic membrane option | May not be the first choice for the most aggressive solvent or CIP cycles. |
| Silicon Carbide Ceramic | High-solids, abrasive, high-throughput wastewater | High permeability and abrasion resistance | Material and module cost should be checked against throughput demand. |
| Polymer Membrane | Mild water treatment and low-cost replacement systems | Lower initial cost and wide availability | May swell, deform, or lose performance under harsh solvents, heat, or strong cleaning chemicals. |
Available Zirconia Membrane Tube Configurations
| Zirconia Ceramic Membrane Filter Tube | ||||||||
| Item No. | Bore Quantities | Picture | Bore Diameter (mm) | Membrane Area | Size | Micro filter | Super filter | Fine ultrafiltration |
| AT-YHG-MG1001 | 19 |
|
3.5mm | 0.05 m2 | Outer Diameter:25mm,Length :250mm | 0.14μm,0.2μm,0.45μm,0.8μm,1.4μm | 15KD,50 KD,150KD,300KD | 1 KD,3KD,5KD,8KD |
| AT-YHG-MG1002 | 23 |
|
3.5mm | |||||
| AT-YHG-MG1003 | 7 |
|
6mm | 0.16m2 | ||||
| AT-YHG-MG1004 | 8 |
|
6mm | |||||
| AT-YHG-MG1005 | 19 |
|
3.5mm | |||||
| AT-YHG-MG1006 | 23 |
|
3.5mm | |||||
| AT-YHG-MG1007 | 49 |
|
2.5mm | |||||
| AT-YHG-MG1008 | 19 |
|
6mm | 0.35m2 | ||||
| AT-YHG-MG1009 | 25 |
|
5.5mm | |||||
| AT-YHG-MG1010 | 37 |
|
3.6mm | |||||
Packaging for Zirconia Membrane Tubes
Zirconia Ceramic Membrane Tube is securely packed in foam-lined wooden crates to prevent damage during international transit. Each tube is individually wrapped with shock-resistant cushioning to avoid surface scratches or impact stress. Custom-fit compartments ensure stability and separation throughout handling and shipping.





