Mixed Bed Ion Exchange Deionizer | High Purity Water Treatment System for Ultrapure Applications
Mixed Bed
The Mixed Bed Deionizer (MBDI) is a highly efficient water purification system that combines cation and anion exchange resins in a single vessel. By ensuring intimate contact between resins, it achieves exceptionally low conductivity and silica levels, making it the preferred choice for producing ultrapure water.
Features of Mixed Bed System
Water deionizers (DI) offer various features tailored to produce ultra-pure water by removing dissolved ions and contaminants.
Compared with two bed deionizers, the mixed bed system delivers higher purity water in a compact design, making it ideal for final polishing of reverse osmosis (RO) permeate water. It is widely applied in industries where ultrapure water is critical, such as semiconductors, pharmaceuticals, power generation, and laboratories.
The following are key features commonly found in deionization systems
1. Ion Exchange Technology
➢ Cation and Anion Resins: The system uses specialized resins to exchange harmful ions (like calcium, magnesium, sodium, chloride, and sulfate) with hydrogen and hydroxide ions, respectively.
➢ Efficient Ion Removal: Capable of reducing total dissolved solids (TDS) to very low levels, often achieving conductivity values as low as 0.1 microsiemens per centimeter.
2. High Purity Water Output
➢ Produces water with minimal ionic contaminants, ideal for critical applications that require ultra-pure water such as pharmaceuticals, laboratories, and electronics manufacturing.
➢ Ensures zero conductivity water by removing virtually all dissolved ions.
3. Compact & Modular Design
➢ Space-saving systems are available in various sizes, from small, portable units for laboratory use to large systems for industrial applications.
➢ Modular design allows customization and easy scalability for different water purification needs.
4. Continuous Flow or Batch Processing
➢ Some systems operate in continuous flow mode, ensuring a constant supply of DI water.
➢ Batch deionizers are used for applications where water usage is periodic, and large quantities of DI water are needed at once.
5. Single Vessel with Mixed Resins
➢superior ion exchange efficiency for ultrapure water
➢ Regeneration can be done automatically or manually, depending on the model.
6. High Purity Output
➢ achieves conductivity as low as 0.1–0.2 μS/cm
➢ Cost-effective as DI water is produced on-site, reducing reliance on bottled or delivered high-purity water.
7. Polishing Unit for RO Systems
➢ ensures stable water quality after reverse osmosis treatment
➢ Automated controls can adjust flow rates and trigger regeneration cycles based on water usage or TDS levels.
8. Compact Skid-Mounted Design
➢ Often paired with pre-filtration stages like sediment filters and carbon filters to remove large particles, chlorine, and organic compounds before the deionization process.
➢ Ensures optimal performance and prolongs the life of the ion exchange resins.
9. Compliance with Industry Standards
➢ Designed to meet regulatory standards for water purity required in various industries (e.g., ASTM, USP, and ISO standards for pharmaceutical, medical, and laboratory use).
➢ Ensures the highest quality of water suitable for sensitive applications.
These features make water deionizers an essential tool in providing high-purity water for various industries that require precise water quality control and minimal ionic contamination.
Mixed Bed Water Deionizer
A Mixed Bed Water Deionizer is an advanced water purification system that combines both cation and anion exchange resins in a single vessel, unlike the traditional two-bed system where the resins are kept separate.
In a mixed bed, the cation and anion resins are thoroughly mixed to ensure maximum contact between the water and the resins, resulting in highly purified water with minimal total dissolved solids (TDS).
The mixed bed process removes both positive ions (such as calcium, magnesium, and sodium) and negative ions (such as chloride, sulfate, and bicarbonate) to produce ultra-pure deionized (DI) water.
Mixed bed deionizers are typically used in applications where the highest possible water purity is required, such as in the pharmaceutical industry, laboratories, semiconductor manufacturing, and power generation.
The compact design and efficiency of mixed bed systems allow them to produce water with very low conductivity, often approaching zero, making them ideal for critical applications where even trace amounts of impurities can affect processes or product quality. Additionally, the mixed bed system can be regenerated, ensuring long-term performance and cost-efficiency.
Mixed Bed Deionizers MBS series
|
Model |
Service Flow(m³/h) |
Tank Size |
|
|
|
Normal |
Maxmium |
|
| MBS-25 | 1.2 | 2 | 250 |
| MBS-30 | 2 | 2.5 | 300 |
| MBS-35 | 3 | 4 | 350 |
| MBS-40 | 4 | 4.8 | 400 |
Mixed Bed Deionizers MBL series
| Model | Service Flow(m³/h) | Tank Size Dia. in |
|
| Normal | Maxmium | ||
| MBL-20 | 6.1 | 9.1 | 20 |
| MBL-24 | 8.8 | 13.1 | 24 |
| MBL-30 | 13.7 | 20.5 | 30 |
| MBL-36 | 19.7 | 29.5 | 36 |
| MBL-42 | 26.8 | 40 | 42 |
| MBL-48 | 35 | 48 | 48 |
For technical support, please contact Aqualitek !
Applications of Water Deionizers
Water deionizers (DI) are essential for applications requiring highly purified water by removing dissolved ions. Below are the key applications where deionized water is crucial.
Water deionizers are vital for industries and applications where high-purity water is required for processes, quality control, or product safety. The ability to remove dissolved minerals ensures the integrity and efficiency of complex systems and operations.
Advantages of Water Deionizers
Water deionizers offer several significant benefits, particularly for applications that require ultra-pure water. Here are the key advantages of using water deionizers.
High-Purity Water Production
⦁ Water deionizers effectively remove all dissolved ions, including calcium, magnesium, sodium, chloride, sulfate, and other impurities, producing ultra-pure water with very low Total Dissolved Solids (TDS) and conductivity.
⦁ Ideal for applications that demand the highest water purity, such as pharmaceuticals, electronics manufacturing, and laboratory testing.
Prevents Scaling and Corrosion
⦁ Deionized water helps prevent the buildup of mineral scale in pipes, boilers, and heat exchangers, which can reduce the efficiency of equipment and lead to costly repairs.
⦁ It also helps protect sensitive equipment, such as those used in semiconductor manufacturing and power plants, from corrosion caused by minerals.
Cost-Effective and Convenient
⦁ On-site deionization eliminates the need for purchasing bottled or delivered high-purity water, which can be expensive and require significant storage space.
⦁ Regenerable resins used in deionizers provide a cost-effective solution for long-term use, reducing operational costs by recycling resins when needed.
4 -
Compact and Space-Efficient
⦁ Many water deionizers come in compact designs, making them ideal for settings where space is limited, such as laboratories, medical facilities, and small-scale industrial applications.
⦁ Can be modular and scalable to meet varying water purity and volume requirements.
5 -
Reliable Water Quality Control
⦁ On-site deionization eliminates the need for purchasing bottled or delivered high-purity water, which can be expensive and require significant storage space.
⦁ Regenerable resins used in deionizers provide a cost-effective solution for long-term use, reducing operational costs by recycling resins when needed.
6 -
Improved Product Quality and Efficiency
⦁ In industries such as pharmaceuticals, electronics, and breweries, the purity of water directly affects the final product quality. Deionized water ensures no unwanted mineral residues interfere with chemical processes, formulations, or manufacturing.
⦁ It also improves the efficiency of cooling systems and boilers, as it prevents the buildup of scale and rust.
BWE series Reverse Osmosis (RO) systems are pre-engineered and pre-assembled units with 8” membrane housings for brackish water(higher TDS).The large volumes can help meet your a variety of industrial applications.T hey are designed for overall superior performance, high recovery rates and offer great savings with low maintenance and operation costs.
BWV series Reverse Osmosis (RO) systems are pre-engineered and pre-assembled units with 4” membrane housings（multiple elements type)for brackish water(higher TDS).The medium large volumes can help meet your a variety of industrial and commercial applications. They are designed for overall superior performance, high recovery rates and offer great savings with low maintenance and operation costs.
A water softener is a specialized filtration system designed to remove hardness-causing minerals, primarily calcium and magnesium, from water. Hard water can lead to scale buildup in pipes, appliances, and fixtures, reducing their efficiency and lifespan. By using an ion exchange process, water softeners replace these hardness minerals with sodium or potassium ions, effectively softening the water.
Water softeners are widely used in residential, commercial, and industrial applications to improve water quality, enhance appliance performance, and prevent plumbing issues. Softened water also provides benefits such as better lathering of soaps and detergents, reduced soap scum, and improved efficiency of water heaters and other appliances. With their ability to extend the life of plumbing systems and reduce maintenance costs, water softeners are an essential solution for managing hard water problems effectively.
Multi-Media Filter (MMF)
Our Multi-Media Filter (MMF) is a highly efficient water filtration system designed to remove suspended solids, turbidity, and other impurities from water. Unlike single-media filters, MMFs use multiple layers of filtration media—such as sand, anthracite, and gravel—each with varying sizes and densities.
This layered structure allows for superior filtration, increased dirt-holding capacity, and longer operational cycles.
Multi-Media Filters are widely used in industrial, municipal, and commercial water treatment applications, serving as a crucial pre-treatment step for processes like reverse osmosis (RO) and ultrafiltration (UF). By ensuring cleaner water and reducing maintenance needs, MMFs enhance the overall efficiency of water treatment systems.
Get Expert Solutions with Our Professional Water Treatment Systems
Tell us your needs, and our engineering team will provide tailored product recommendations to optimize your water quality.
Rest assured that your privacy is important to us, and all information provided will be handled with the utmost confidentiality.
By clicking "Submit now," I agree to your processing of my personal data.
To see how to withdraw your consent, how to control your personal data, and how we process it, please see our Privacy Policy and Terms of Use.
+86 139 2235 7065
Tel
+86 139 2235 7065
Address
No.63, JieYuan Rd. Panyu district, Guangzhou city, Guangdong province, China
Copyright © 2025 AQUALITEK. All rights reserved.
AQT
AQT