Mixed Bed Ion Exchange

High Purity Demineralized Water

Ecolab® Ultra-Pure Water+ mixed bed ion exchange is used to economically produce demineralized water for a wide variety of applications, such as final polishing, located downstream of a primary demineralization stage, or polishing high purity water recycle loops and condensate polishing.

The collection systems within internally regenerated mixed beds are a common failure point. Our internally regenerated mixed bed systems offer a robust solution capable of withstanding the forces that are imposed during service and regeneration cycles, providing long term reliable operation.

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How It Works

Mixed bed polishing is an ion exchange-based water treatment technology that comprises of a bed of cation and anion resins, intimately mixed and housed within a cylindrical vessel. The mix of resins provides a perfect environment for the removal of dissolved ionic contaminants.

Mixed beds can be supplied as internally regenerated where the resin is separated around a central collection system within the vessel. The separated resins are then individually regenerated with the appropriate chemical, rinsed, mixed using air and then returned to service. We also offer externally regenerated systems, such as our Conesep and Movex products, where the resin is transferred from the vessel to an external regeneration system for the condensate polishing process.

Where mixed beds are acting as a final polisher step in a high-purity demineralization system, a non-regenerable mixed bed polisher can be a more cost-effective solution. Ecolab Ultra-Pure Water+ offers a service option to remove the resins and regenerate off-site for return and reuse where appropriate, eliminating the need for on-site storage and handling of chemicals for regeneration.

Related Product

Electro Deionization

Electro Deionization (EDI) is a polishing step to remove low levels of dissolved contaminants from water, such as reverse osmosis permeate. Producing high purity demineralized water, similar in quality to that of a polishing mixed bed ion exchanger, but without the need for chemical regenerants.

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Equipment Details

Features and Benefits

Ecolab Ultra-Pure Water+ mixed beds, also known as mixed bed ion exchange, efficiently remove dissolved minerals to provide water that has a conductivity of less than 0.06 µS/cm. Our unique water distribution systems, developed for high velocity polishing applications, allow operation at high resin bed velocities without swirling of the resin within the vessel.

Mixed beds have a robust internal distribution system that is effective in even the most demanding applications around the world. Our mixed beds are installed in industrial applications including nuclear and supercritical power stations. They operate at high pressures and velocities where maintaining water quality and reliability is essential for efficient power generation.

Flexible mixed bed ion exchange solutions

Mixed bed ion exchange systems can be used as a solution for a wide variety of industrial applications, where high purity demineralized water is required. Our systems are designed to be water and chemical efficient reducing operating costs and providing a sustainable solution. We can supply Mixed Beds ion exchange systems as a pre-engineered plant to Ecolab Ultra-Pure Water+ specifications or customized to your specifications.

Mixed beds have a range of benefits that put this product ahead of the competition, including:

Uniform flow distribution to maximize resin capacity
Proven robust design maximizing availability
Fully automated operation
High velocity design to minimize footprint
Offsite or onsite resin regeneration

Technical Information

Mixed bed systems offer a range of technical features and benefits, including:

Compliance with EPRI and VGB requirements
Treating a wide range of flows and pressures to meet site specific conditions
Modular skidded designs
OpsCNTRLTM enabled to allow remote digital monitoring and diagnostics from mobile phone, tablet or PC
Feed studies
Life cycle cost analysis
Full design build support
Process optimisation
Refurbishments and upgrades

Get In Touch with Us

Please Give Us a Call

With unparalleled expertise and cutting-edge technology, we partner with customers to deliver world-class results and optimized operations. Contact us to learn how we can help you.

Ecolab Inc.
1 Ecolab Place
St. Paul, MN 55102

Ecolab Customer Service:
Phone: +1-800-352-5326

Nalco Water Customer Service
Phone: +1-800-288-0879

Ecolab Ultra-Pure Water+

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