Ion Exchange Resins
Our services
Ion Exchange Systems
Ion-exchange units engineered to the water quality you need — from hardness removal to demineralisation and mixed-bed polishing.
Overview
Overview
Ion-exchange systems rely on resin carrying exchangeable ions. As water passes through, the resin captures unwanted ions — calcium and magnesium, or dissolved salts — and releases others in their place. When the resin is exhausted it is regenerated with a suitable solution and returns to service.
Aqua System designs, supplies, installs and commissions ion-exchange units for industry — from softening units to demineralisation (deionizer) systems and mixed-bed polishers for high-purity water — and supplies the resin and regeneration chemicals they run on.
From softening to demineralisation
In a softener, a cation resin swaps calcium and magnesium for sodium and is regenerated with brine. In demineralisation, an acid-regenerated cation resin and a caustic-regenerated anion resin work in series to remove most ions, and a mixed-bed stage can be added where higher purity is required.
Operation and regeneration
Performance depends on correctly set service runs, regeneration cycles and chemical strengths. We hand over each unit with a clear operating programme and supply replacement resin, caustic soda and hydrochloric acid for operation.
Problems we solve
Challenges this service addresses
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Hardness causing scale
Calcium and magnesium deposits in boilers, heat exchangers and production lines.
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Dissolved salts affecting the process
Processes that need low-salinity or demineralised water.
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Exhausted or fouled resin
Lower capacity and short service runs caused by old resin.
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Uncontrolled regeneration
Chemicals and water wasted by poorly set regeneration cycles.
System & treatment method
How the treatment works
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Pre-treatment
Filtration to remove suspended solids and chlorine ahead of the resin.
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Cation column
Removes hardness or cations.
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Anion column
Removes anions in demineralisation systems.
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Mixed bed (optional)
Final polishing for high-purity water.
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Regeneration
Brine, or acid and caustic soda, depending on the resin.
Applications
Where this solution is used
- Boiler feed water
- Cooling and chiller circuits
- Chemical and plastics industries
- Pharmaceutical plants and laboratories
- Polishing after reverse osmosis
Advantages
Why choose this solution with Aqua System
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The full cycle from one supplier
Design, supply, installation, start-up, resin and regeneration chemicals.
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A clear operating programme
Service and regeneration cycles set and handed over in writing.
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Resin replacement when due
Replacement resin and re-bedding for your existing units.
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Integrated with the plant
Tied in with pre-treatment and RO where required.
Components
Main system components
- Resin vessels
- For cation, anion or mixed-bed resin.
- Ion-exchange resin
- Selected for the required quality.
- Control heads or valves
- Run service and regeneration cycles.
- Regeneration tanks and pumps
- Prepare and inject regeneration solutions.
- Quality instruments
- Monitor hardness or conductivity of the treated water.
Engineering & implementation
How we deliver this service
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01
Site survey & water analysis
We visit the site, review the water source, its analysis and end use, and agree with your team on the problem and the target.
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02
Engineering design & selection
We define the treatment stages, capacity and equipment and submit a clear technical and commercial offer.
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03
Supply
We supply the equipment, media and chemicals specified in the design and check them before they ship to site.
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04
Installation & commissioning
We install the unit, connect its piping and control panel, then start it up and tune it until it delivers the target water quality.
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05
Handover & training
We hand the plant over to your operators with hands-on guidance on daily operation and periodic washing.
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06
Follow-up & technical support
We follow the plant's performance, supply consumables and spare parts and provide technical support when needed.
Related products
Consumables and chemicals for this service
- Mixed Bed Media
- Industrial Chemicals
- Industrial Chemicals
Technical guides
Articles about this service
Technical Guides
Water Hardness in Industry: When Do You Need a Softener?
What water hardness is, how it affects boilers, heat exchangers and production lines, when a softener is the answer — and when you need more.
FAQ
Frequently asked questions
What is the difference between a softener and a demineraliser?
A softener only removes hardness, replacing it with sodium. A demineraliser removes most cations and anions to produce demineralised water.
How long does resin last?
Resin life depends on feed quality, the presence of chlorine or iron and regular regeneration. We track unit performance and recommend replacement when capacity drops noticeably.
Which chemicals are used for regeneration?
Salt for softeners; hydrochloric acid for cation resin and caustic soda for anion resin in demineralisation units.
Can an existing unit be upgraded?
Yes. We review the unit and the water analysis and propose resin replacement, additional stages or better controls.
Talk to an engineer
Need a water treatment solution that fits your facility?
Send your water analysis or describe your current system, and our technical team will come back with a clear, suitable proposal.