CERA~DUR 3 Series

Introducing the CERA~DUR 3 Series

Since launching our ceramic hollow-fiber technology, our CERA~DUR 1 Series and CERA~DUR 6 Series have been extremely well-received. However, as a customer-obsessed company your feedback matters to us, and we’ve heard you loud and clear.  

The CERA~DUR 1 Series is a very low-cost and easily-adaptable module for water quality testing, as well as a very cost-effective opportunity to gain experience with our Ceramic Hollow Fiber technology. However, at only 0.17 meters² of filtration area, this module did not provide the optimal filtration area for larger projects.  

In contrast, our CERA~DUR 6 Series, provides the ability to filter large volumes of wastewater in a very compact design. However, the overall product design, especially the custom stainless housing, made it challenging to be a cost-effective solution for many Industrial Wastewater applications, such as Industrial Laundry or Car Wash applications.  

After taking this feedback into account and along with extensive internal testing, we developed a better alternative. 

We are excited to officially introduce the CERA~DUR 3 Series.



CERADUR 3P Serial Production-2 4-25-19

The cost-effective CERA~DUR 3 Series modules contain over 300 individual ceramic hollow fibers and a total filtration area of 1.1 m². The simple, compact design allows for several modules to be designed in series, thus reducing the overall system costs, footprint, and power consumption. 

The CERA~DUR 3 Series is the perfect option for many industrial wastewater applications. In fact, for applications that don’t require process wastewater between 10° and 50° C or a pH range outside of 2-10, the CERA~DUR 3 Series is a perfect fit.  

It’s the most cost-effective ceramic hollow fiber solution on the market today.  

The CERA~DUR 3 Series was specifically designed to be the most cost-effective ceramic hollow fiber solution for industrial wastewater applications.   

Additional Benefits  

  • Lower capital and operating expense costs.  
  • Modular design options for easy installation and maintenance.  Higher flux when compared with polymer membranes.  
  • Backwashed with a short cycle of water resulting in consistent high recovery.  
  • Ability to handle aggressive wastewaters; up to 100,000 ppm TSS, 20,000 ppm COD, and 5,000 ppm oil.  

The unmatched flexibility of the CERA~DUR 3 Series positions it to be an extremely  cost effective solution for the industrial wastewater market. The ability to achieve a high packing density in a single module allows us to offer a greater filtration area in comparison with other membranes on the market. Using our ceramic hollow fiber membranes provides you the ability to filter large volumes of wastewater while minimizing space and energy. Furthermore, the membranes are available in a variety of different pores sizes to suit specific filtration needs.

3P Horizontal (With Notes)
Pore Size Graph Updated

From Nanofiltration to Microfiltration

Our ceramic hollow fiber membrane portfolio covers nanofiltration, ultrafiltration and microfiltration. In addition to our standard 30 nm pore size, we now offer 3 nm, 10 nm, 80 nm, 100 nm, 130 nm and 700 nm pore sizes.

Our clean water permeability ranges from 60 to 14,000 LMH at 1 bar depending on the pore size.

Crossflow in-out filtration

Our crossflow in-out filtration offers long operating cycles by increasing the shear force to remove fouling layers and high recovery of membrane performance with less cleaning cycles and chemicals.

Removal of fouling layers is imperative for the function of any membrane system, as any buildup of materials has the potential to degrade the membrane resulting in a decrease of both the flux and the quality of the end product.

Our ceramic hollow fiber membranes typically require a quick, periodic backwash. The backwash removes the fouling layers, thus improving performance and extending the operating lifetime of our membranes. However if needed the CERA~DUR membranes can easily tolerate a variety of CIP protocols.

3 Series Flow


  • Recommended Operating Parameters

    Feed Circulation Flow: 60-180 LPM (16-48 GPM)
    Operating TMP: 3.0 bar Max (43 psi)
    Operating Temperature: 5 to 50 °C (41 to 122°F)
    pH Range (continuous): 4– 10 < 50 °C (122 °F)
    Operating Pressure: 3.0 bar (43.5 psi)
    Backwash Pressure: 3.5 bar Max (50.8 psi)

  • Filter Specifications

    Membrane Material: Ceramic – Aluminum Oxide
    Membrane Structure: Hollow Fiber
    Pore size (nm): 3, 10, 30, 80, 100, 130, 700
    Filtration area: 1.1 m² (11.8 ft²)
    Potting Material: Epoxy
    Housing Material: PVC
    Filtration: Crossflow
    Flow Type: Inside -out
    Clean Water Flux @ 1 bar TMP: 80 – 2000 LMH*
    * depending on pore size selected

  • Recommended Backwash Parameters

    Permeate Backwash

    Backwash Pressure: 2.0 bar (29 psi)
    Duration: 10-20 seconds
    Typical Frequency: Every 20-30 minutes


    Chemically Enhanced Backwash (CEB)

    Typical Frequency: Every 2-4 weeks
    Duration: 1-2 hours
    Chemicals (Typical): NaOCI, NaOH, Citric Acid


1053 E. Whitaker Mill Rd. Suite 155 Raleigh, NC 27604 USA
Steven Ysidron - Head of Business Development: 919-272-9702
Dominik Reich - Head of Operations: 919-895-2311