Your Reliable Ion Exchange Resin Supplier
- Highly effective at removing impurities
- Safe & Long-lasting
- Regenerable
- Selective removal of contaminants
- High Capacity
Ion Exchange Resin Supplier & Manufacturer in China
The principle of ion exchange is utilized by ion exchange resins, which are comprised of cationic resins and anionic resins. These resins undergo displacement reactions and displace cations and anions in a solution. The chemical properties and classifications of resin are defined by the nature of the chemically active groups present within it. Our NEWater product line provides you with a selection of top-notch ion exchange resins, including styrene resins and acrylic resins.
Resins that have a high concentration of strongly acidic groups, including the sulfonic acid group-SO3H, are highly acidic and can dissociate H+ easily in a solution. Due to their strong dissociation ability, these resins facilitate ion exchange in both acidic and basic solutions.
Resins belonging to this type possess weakly acidic groups, such as carboxyl-COOH, that can undergo H+ dissociation in water, resulting in acidic nature. Compared to strongly acidic resins, they can be regenerated more easily with acid.
Resins of this type feature highly dissociative strong basic groups, making them capable of functioning efficiently at varying pH levels. They can be regenerated with a strong base, such as NaOH.
Resins in this category contain weakly basic groups that can only function effectively within neutral or acidic conditions (pH 1 to 9). These resins can be regenerated using substances such as Na2CO3 or NH4OH.
Features
Selectivity
Ion exchange resins are materials designed to selectively remove or exchange ions from a solution. This allows them to target certain contaminants such as minerals, heavy metals, and other impurities in the water.
Capacity
The resins are designed to specifically target and remove certain types of ions from water, depending on the type of functional groups they possess. Due to their high capacity for ion exchange, ion exchange resins can remove a significant number of pollutants from water before they need to be regenerated.
Regenerability
Ion-exchange resins can be regenerated by simply flushing them with a content that replaces the captured ions with new ones. This makes them a sustainable and cost-effective option for water treatment.
Effectiveness
Ion exchange resins are very effective when it comes to removing a wide range of impurities and contaminants from water, including calcium, magnesium, iron, and other metals, as well as organic compounds.
Durability
Ion exchange resins are durable and can last for many years with proper maintenance, making them a reliable and long-lasting solution for water treatment.
Flexibility
Ion exchange resins are highly adaptable and can be tailored to fulfill several different water treatment requirements. To meet these needs, they come in the form of beads, membranes, and granules.
Reliable Ion Exchange Resins Supplier
NEWater is a reputable treatment equipment manufacturer based in China. We ensure that the supply of high-quality ion exchange resins is an economical and environmentally friendly solution. We are customer-friendly and provide extended after-sales service. In addition, we also provide customized services for ion exchange filters and ion exchange tanks.
These resins are suitable for water treatment methods for domestic water softening, industrial water purification, and other applications. These exchange resin processes can effectively remove impurities in water such as minerals, heavy metals, and other pollutants.
Fields of Use for Ion Exchange Resins
In hard water treatment, ion exchange resins are employed to remove unwanted mineral ions from water by exchanging them with other ions, typically sodium or hydrogen ions. This process results in the production of demineralized water that is free from hard water minerals.
The pure water produced by the RO+ ion exchange system can be used in the production process of food/beverage, ensuring the safety of food.
A viable approach for generating ultrapure water is by utilizing the RO/EDI system. High-purity water is conducive to the high standards of the laboratory/pharmaceutical industry to ensure the accuracy of experiments.
The wastewater discharged from general chemical plants will contain toxic ions or non-ionic substances, which can be recycled by using ion exchange resins. Examples of metal ions found in waste liquids include those from electroplating and film production processes.
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Items
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Date
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Cationic resin
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Anion resin
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skeleton
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Styrene divinylbenzene copolymer
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Classification form
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Gel type
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Functional group
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-SO3
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-N(CH3)3
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Ionic form
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H
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OH
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Volume full exchange capacity（mmol/ml）
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≥1.80
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≥0.90
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The proportion of cation resin and anion resin
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1
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2
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Particle size range （ mm）
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0.40-1.20
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Wet apparent density （ g/ml）
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0.67-0.77
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High operating temperature （℃）
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60
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PH Range, Stability
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0-14
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Shipping weight (approx.) （g/l）
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0.67-0.77
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Ionic conversion, min. （%）
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90
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95
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Frequently Asked Questions
1. Operating Mechanisms of Ion Exchange Resins
Ion exchange resin is a method that is used in the treatment of water to remove impurities as well as contaminants from water. It applies the principle that is since water contains charged particles or ions such as magnesium, calcium, sodium, and chloride ions.
The ion exchange process occurs as water flows through a tank or column filled with ion exchange resin. The resin captures ions from the water and substitutes them with its own ions. As the resin gets saturated with ions over time, it requires removal from the water and regeneration to renew its ion exchange capacity.
This process of regeneration involves flushing the resin using a solution that has a high concentration of the ions that the resin was designed to capture. This process effectively removes impurities from water, such as minerals, heavy metals, and other contaminants.
2. What Pollutants Can Be Eradicated from The Water Via Ion Exchange Resin?
Ion exchange resin can effectively remove a wide range of contaminants from water, including dissolved minerals, heavy metals, organic compounds, and other impurities. Specific contaminants are removed depending on the kind of resin used. For example, the strong acid cation (SAC) resin is mainly used for water softening and can remove calcium and magnesium ions, while strong base anion (SBA) resin is mostly used to remove the negatively charged ions such as nitrates, sulfates, and chlorides.
Other types of ion exchange resins can be used to remove specific contaminants, such as chelating resin, which can remove heavy metals, and mixed bed resin, which can remove both cations and anions simultaneously. The ability of the ion exchange resin to remove specific contaminants makes it a versatile and effective method for water treatment in many different applications.
3. Ion Exchange Resin Maintenance: When to Regenerate or Replace?
The time for regeneration or replacement of ion exchange resin depends on several elements, including the kind of resin utilized, the caliber of water being treated, and the processed volume. In a general sense, passing a regenerating solution – be it a brine solution for water softening or an acid/base mixture for other applications- through the resin bed is sufficient to restore its capacity to exchange ions while eliminating captured impurities simultaneously. The frequency of regeneration depends on the level of impurities being removed and the resin’s capacity to exchange ions.
Eventually, the resin will reach its maximum capacity for exchanging ions and will need to be replaced. The lifespan of ion exchange resin varies based on several factors, including the quality of the water being treated, the type of resin, and the volume of water being treated. In general, ion exchange resin can last several years before needing to be replaced. Regular monitoring and maintenance of the resin system can help ensure optimal performance and extend the lifespan of the resin.
4. To What Degree Does the Capacity of Ionic Exchange Resins Influence Water Treatment?
An ion exchange resin’s capacity refers to the number of ions it can remove effectively before reaching saturation, necessitating regeneration or replacement. The capacity of ion exchange resin can vary based on several factors, including the resin type, the quality of the water being treated, and the volume of water being treated.
The capacity of ion exchange resin can have various impacts on water treatment processes. For example, if the capacity of the resin is too low, the resin may become exhausted quickly and require more frequent regeneration or replacement. On the other hand, if the capacity of the resin is too high, the resin may be underutilized and may not be cost-effective.
The capacity of ion exchange resin can be optimized by selecting the appropriate resin for the water being treated and ensuring that the system is properly sized and maintained. Monitoring the resin’s capacity over time can also help ensure that the resin is performing optimally and can help predict when regeneration or replacement may be necessary.
5. Can Ion Exchange Resin Be Used in Combination With Other Water Treatment Methods?
Yes, ion exchange resin can be combined with other methods of water treatment methods to achieve a much better quality of water. For example, ion exchange resin can be used in conjunction with reverse osmosis (RO) systems to remove dissolved salts and other contaminants from water. In such a case, the ion exchange resin will be used as a pre-treatment step to remove the larger ions as well as organic matter, that can foul the RO membrane. This improves the efficiency and lifespan of the RO system and can help improve the overall water quality.
Combining ion exchange resin with activated carbon is also possible to remove organic compounds and other impurities from water. The activated carbon can remove some of the larger organic molecules that cannot be captured by the resin, while the resin can remove smaller ions and other impurities. This combination of treatment methods can be particularly effective in treating water with high levels of organic matter or other impurities.
6. Why Should You Use Ion Exchange Resin as Opposed To Other Water Treatment Methods?
While ion exchange resin is a highly effective water treatment method, there are some limitations and disadvantages to consider. One limitation is that ion exchange resin is not effective in removing dissolved gases from water, such as carbon dioxide or oxygen. In addition, some types of contaminants, such as bacteria and viruses, are not effectively removed by ion exchange resin and require other treatment methods.
Another limitation is that ion exchange resin can be costly to operate and maintain, particularly in large-scale applications. The resin must be periodically regenerated or replaced, which can be time-consuming and require significant amounts of water and chemicals.
Finally, the discharge of the regeneration chemicals used in the process can also be an environmental concern. Proper handling and disposal of the regeneration chemicals are necessary to prevent contamination of the environment.
Despite these limitations and disadvantages, ion exchange resin remains a popular and effective method for water treatment in many different applications. Its ability to selectively remove specific contaminants makes it a versatile and powerful tool in the water treatment industry.