Ion Exchange Testing Systems: From Benchtop to Field

We have a just expanded our range of ion exchange (IX) testing systems with a Field Pilot System so that we can cater to every stage of process development; from small-scale screening to full-scale pilot testing.

We thought this was a good opportunity to go over some of our ion exchange testing systems and approaches.

Small-Scale Testing: 10mm Benchtop Columns

For resin screening and research and development (R&D) we favour the use of our 10mm benchtop columns as they allow us to test ion exchange with relatively small volumes of test solution. These compact systems are ideal for scenarios where water availability is limited, requiring only 2-4 litres per run we can complete a development project with as little as 20 litres of feed solution.

Key Benefits:

• Minimal Water Consumption: Suited for labs and R&D where resources are constrained.
• Rapid Turnaround: Quickly evaluate multiple resin options and formulations.
• R&D Optimization: Ideal for screening, process validation and early-stage development.

This is helpful to gain insights into resin performance, enabling businesses to refine processes decisions before scaling up.

Pilot-Scale Testing: 25mm Columns

When the time comes to validate resin performance under realistic conditions, our 25mm columns are the perfect choice. With a full bed height of 800-1500mm, these columns mimic full-scale systems, delivering reliable, scalable data. Each run requires 150-200 litres of water, striking a balance between practicality and precision.

Key Benefits:

• Accurate Simulation: Closely replicates operational environments for credible results.
• Off-site Testing: Conducted at our dedicated testing facility for controlled, repeatable experiments.
• Design Validation: Enables comparison of resin performance under varying conditions.

These columns provide a bridge between R&D and large-scale piloting, helping to fine-tune system designs before deployment. These can also be rented for use on site and tied into a side stream if required.

Field Piloting: 150mm Columns

For large-scale, on-site piloting, our new 150mm columns have a customisable design that allows us to demonstrate performance across a range of applications. Designed for longer term trials, these systems use 20-30 m³ of water per run and accommodate three columns, which can operate either in series (for example at a power station demineralization for anion, cation, and mixed-bed setups) or in parallel to compare different resins (such as screening different PFAS removal media).

Key Features:

• Customisable Configurations: Tailored for lead-lag setups or parallel resin evaluation.
• Real-World Validation: On site operation means that resins are exposed to day-to-day variations to capture real world operational conditions.
• Flexible Flow Rates: Operates at 1.7 LPM (6 BV/h) to 15 LPM (50 BV/h), meeting diverse process requirements.

With backwash and regeneration capabilities, these systems allow for efficient operation and extended use during field tests.

Why Choose Membrane Works for IX Testing?

• Comprehensive Testing Solutions: Membrane Works offers an end-to-end range of services, from small-scale laboratory tests to full-scale field piloting, covering every aspect of ion exchange testing. Our in-depth understanding of IX resins and water treatment processes allows us to support your projects with tailored solutions.
• Science based Insights: By employing advanced scientific methods, we help optimize system design and resin selection. From equilibrium adsorption studies to column tests, our methodologies provide insights into resin performance, ion breakthrough behaviour, and water treatability under varying conditions. This ensures you receive reliable data to support confident decision-making
• Customized Solutions for Specific Needs
  Recognizing that every site and project has unique requirements, we specialize in designing and constructing columns tailored to your specific needs. Whether for pilot testing or long-term use, our systems are adaptable to meet your operational demands. Our ability to integrate innovations, such as our new piloting rigs designed for PFAS removal, highlights our commitment to addressing complex challenges
• Industry Partnerships
  With a history of innovation in IX and water treatment, Membrane Works is a trusted partner for industries including power, mining, and environmental management. Our solutions not only improve resin efficiency but also address emerging regulatory and environmental challenges, such as treating high-sensitivity discharge waters

Optimize Your Ion Exchange Processes with Membrane Works

Whether you’re screening resins in the lab or validating designs on-site, our ion exchange testing systems offer the precision and scalability you need. Contact us today to learn how we can help optimize your IX operations and drive success in your water treatment projects. 

Contact us today to discuss how we can help make this a reality.