Your Dependable Anion Exchange Water Filter Manufacturer

  • Removes hardness.
  • Softens the water being treated.
  • Water Treatment Process.
  • Selective removal of specific contaminants.
  • All product quality assurance.
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    NEWater: Anion Exchange Water Filter Manufacturing Leader

    We here at NEWater manufacture all forms of high-quality water softener technology. They are composed of a great variety of products, including ion exchange filtration systems, and alternative to the usual Cation ion exchange mechanisms, we also design and produce anion exchange water filters. These Filters rather than removing cations, replace anions, which are negatively charged ions with the help of anion-specific resins. Send over your emails and questions now!

    NEWater Brings for YouDiverse Anion Exchange Water Filter

    Ion Exchange Filter

    The Ion Exchange Filters remove unwanted dissolved ions in the water and allow the water to be healthy for use domestically and commercially.

    Ion Exchange Resin Water Filter

    Our Ion Exchange Resin Water Filter uses high-quality synthetic resin beads to attract unwanted ions from the water being treated.

    Reverse Osmosis Ion Exchange

    These Reverse Osmosis Ion exchanges use a multistep process where pressure pumps and membranes are used for superior RO technology and then ion-specific resins are used to remove unwanted mineral and metallic impurities.

    Your Anion Exchange Water Filter in China

    NEWater’s anion exchange water filters have a variety of application areas including, in drinking water treatment, treating various contaminants such as boron and uranium, and in food processing such as for fruit juice, cane sugar decolorization, and whey demineralization, among others.

    Our anion exchange water filter, along with our other water deionization systems, such as our deionized water system for laboratories and our ion exchange water softener standout amongst the competition, and allow us to stand out as an excellent environmental protection brand with 3A contract credit rating enterprise.

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    anion exchange filter

    NEWater Anion Exchange Water Filters

    NEWater anion exchange removes dissolved ions from a solution by attracting cations or anions using synthetic resins, then releasing (exchanging) counter-ions until the resin is exhausted. Ion exchange happens as the solution passes over a resin bed. Regenerating or replacing ions on the resin continues the process.

    When compared to comparable systems, on-site resin regeneration uses a packed bed, and counter-current technology, which reduces chemical use and waste volume. We provide counter-current regeneration, which uses half as many chemicals and half as much water as traditional deionization systems.

    NEWater Anion Exchange Water Filter Principles

    With NEWater anion exchange resins, cation exchange resins,  and amphoteric ion exchange resins are the three types of ion exchange resins. Water and other common solvents are insoluble in ion exchange resins. The majority of them are granular, but there are a few that are fibrous or powdery.

    Resin particles range in size from 0.3 to 1.2 mm, with the majority falling between 0.4 and 0.6 mm. Under typical conditions, they have strong mechanical strength (robustness), chemical stability, and long service life.

    anion exchange process
    anion exchange filter plant

    NEWater Anion Exchange Water Filter Features

    • Automatic control, continuous water production, simple operation, and safety and reliability are all features of this machine.
    • Strong flexibility; it can soften exceptionally hard water (>30mmol/L) to a residual hardness of 0.03mmol/L in a single step.
    • The regeneration period is short, the amount of resin used is small, salt consumption is low, water quality is consistent, and operating costs are cheap.
    • When compared to similar products, it can save 50 percent of the investment, 30 percent of the energy, 60 percent of the washing water, and minimize pollution.

    NEWater Mission:Bring New Life for Water

    NEWater has an independent large-scale production workshop, which is convenient for the control and supervision of product production quality. Strictly abide by production standards and provide detailed guarantees for all projects.

    Production workshop

    NEWater establishes SOP standardized operation process and strictly implements the work process. The professional project installation team, implement 5S on-site management. Equipped with standard safety facilities, investigating access conditions, and short construction time.

    Operation example

    The safe transportation process does not have to worry about product damage and extends the construction period. NEWater has provided system equipment to thousands of companies around the world, which guarantees absolute product transportation.

    Production and transportation 

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    seawater desalination data sheet

    Seawater Desalination System data sheet

    How Long does the General Production Cycle Need to Wait?

    NEWater’s treatment types of equipment are divided into a large system and a small system according to the water volume. The equipment is divided into portable water-making equipment, small modular equipment, skid-mounted equipment, and container-type equipment. According to different water volumes and customer requirements, we provide customized services.

    Conventional small equipment takes 3-7 days, and large equipment takes 2-3 months. This is based on your requirements and water volume.

    If I Need to Customize Equipment, What Data Need to be Provided?

    1. As the voltage and frequency of different countries are different, we first need the local voltage and frequency of electricity.
    2. How many gallons the water requirement per hour is
    3. The water quality of the source water and what requirements need to be met
    4. If you need to provide on-site installation services

    Does the Equipment Need to be Installed On-site?

    1. Portable and small equipment — This is plug and play, it doesn’t need to be provided installation services. According to our instructions, you can install by yourself.
    2. Small modular equipment, skid-mounted equipment, and container equipment-we will reserve the interface for docking. If there are installation workers, we will provide installation instructions and installation instructions. If necessary, we can also send someone to install it.
    3. How to provide installation instructions —— We have installation instructions and installation videos. If necessary, we can provide free remote software to help you with remote video installation instructions.

    How to Charge for Installation Service

    1. We provide free installation instructions, with instruction manuals and installation videos
    2. Remote video installation guidance. If it is a large piece of equipment and the customer needs to install it by himself, then we will also provide free remote installation guidance service, but we need to plan a good time, within our working hours. Our working hours are from 9 o’clock to 18 o’clock Beijing time
    3. We send workers to install it. This needs to be based on the size of the project. If we have been designated to install it in the early stage, the installation service abroad will belong to our scope of work, and no additional charge is required.
    4. If we need to send someone to install it temporarily, we need to provide different charges according to different countries, installation technical requirements, and different types of technical work. Welcome to inquire.

    How to Transport the Equipment?

    There are several types of transportation, sea, air, and express

    1. If it is a small device and requires fast speed, we can provide door-to-door service by air and express, the normal transportation cycle is 5-10 days.
    2. If it is skid-mounted or container equipment, it is more appropriate to use the shipping method. The normal transportation cycle is 20-40 days.

    Whats Your Payment Method?

    Small equipment needs payment to delivery

    For skid-mounted equipment and container equipment, 50% is prepaid, 30% is charged after video inspection, and 20% is charged before shipment.

    Of course, we provide you with flexible ways of cooperation. Become our agents, and have more flexible support. Welcome to contact us.

    Do You Provide Maintenance Services?


    1. NEWater provides free installation guidance and a one-year product warranty service. During the warranty service period, if there is an equipment problem, we provide free equipment repair or replacement services. If it is a manual operation, a fee will be charged. We can provide the required equipment replacement.
    2. We provide life-long after-sales service. NEWater has a full set of equipment and accessories, which can be replaced. Don’t worry about the failure of after-sales and maintenance.
    3. During the warranty period, NEWater provides all kinds of professional technical support, and if necessary. We also provide remote video guidance services.
    4. After the warranty period, NEWater also provides life-long after-sales maintenance, which requires a certain amount of manual service. There are also many matching accessories that can be replaced, so there is no need to worry about the later operation of the equipment.

    Do You Provide Design Services?

    Yes, we do.

    For conventional small equipment, NEWater has standardized equipment. For large-scale skid-mounted and container equipment, we can design a process that meets the needs according to different water quality requirements.

    At the same time, we carry out three-dimensional drawing designs according to different requirements and then communicate with customers to confirm.

    After the design confirmation is completed, we then proceed to custom processing. So you don’t have to worry about our design and production capacity. We will provide you with the most professional technical support.

    Anion Exchange Water Filter from NEWater

    NEWater has over 20 years of manufacturing experience in designing and producing high-quality anion exchange water filters. They allow you to safeguard your property, either as a homeowner or a business owner. They remove unwanted mineral and metallic ions to reduce the hardness of the water, preventing scale buildup and damage to appliances and equipment such as cleaners and heaters that are related to water.

    Our anion exchange water filters replace unwanted minerals in water being treated with others. The ion exchange occurs in tanks that are composed of beds of resins, that may either be arranged according to their charge specificity or maybe in mixed beds. The anions in this case are attracted to the negatively charged resins and are replaced with other positively charged ions. These ions are usually chloride. A number of contaminants such as fluoride, sulfate, arsenic, and nitrates are removed in the anionic filtration process.

    The resins used have a finite replacement capacity, and can easily be recharged or regenerated to allow our anion exchange water filter to return to its initial condition. Post-treatment methods such as UV radiation treatment may also be used to remove microbial pathogens.

    Send over an email to regarding our Anion Exchange Water Filter and receive a quote and answers to all your queries now!

    The Ultimate FAQ for Anion Exchange Water Filter.

    Attempts to remedy the global freshwater scantiness have their success compounded by the vast number of available water filtration technologies. At present, you can access water filtration or purification systems customized to remove specific pollutants from your feed water.

    Anion exchange water filters are specialized filters mainly utilized to resolve the presence of objectionable minerals in raw water. They target specific constituents and are revered water treatment solutions for distinct applications. Beneath, we discuss everything you need to know about anion exchange water filters.

    Figure 1 Anion exchange water filter.

    What is an Anion Exchange Water Filter?

    An anion exchange water filter is a type of filtration medium made of ion exchange resins with positively charged sites that capture negatively charged ions from the feed water. Typically, anion exchange water filters are light in weight, porous, and available as beads, granules, or sheets. They are primarily charged with hydroxide (OH-) or chloride (Cl-) ions, which essentially displace the unwanted anions from water.

    They are primarily used together with cation exchange water filters but they can be solely deployed to eradicate nitrates and in organic scavenging. Different resins can be installed in anion exchange water filters thereby diversifying their application fields. They are often accommodated in pressure vessels made of fiberglass or stainless steel.

    What are the Main Uses of Anion Exchange Water Filters?

    Ion exchange water treatment systems are generally utilized to eliminate unwanted ionic components from water. The ionic constituents are either positively charged or negatively charged hence the use of both anion and cation exchange water filters. Anion exchange water filters are specifically employed to eradicate anionic (negatively charged impurities). Here are the primary uses of anion exchange water filters.

    ● Nitrate removal.

    Consuming water with a high nitrate content can cause the human body serious harm such as extreme heart rate and dizziness. It can also affect your skin negatively by giving it a gray or bluish color. Anion exchange water filters exploiting strong base anion resins are specifically designed to eliminate nitrates from water. Chloride ions held by the SBA resin beads are discharged to replace the nitrate and other negatively charged ions from the water.

    ● Organics removal.

    The concentration of organics in water is measured as the total organic compound (TOC) level. It indicates the concentration of carbon in organic compounds found in water. Organics can be eliminated using both strong base anions and weak base anions.

    ● Desilication.

    Desilication refers to the effective eradication of silica (SiO2) from water. Silica removal using ion exchange is accomplished using strong base anions with hydroxide (OH-) ions. Anion exchange filters eliminate reactive silica thereby averting the accumulation of silica deposits on high-pressure boilers.

    Figure 2 Ion exchange water system.

    How do Anion Exchange Water Filters Function?

    Anion exchange water filters can be employed in conjunction with cation exchange filters or as singular filters. Irrespective of their configuration they typically deploy similar working principles. At first, the feed water is sufficiently preconditioned using sediment filters to remove suspended solids.

    Consequently, it is injected into the pressure tank holding the anion exchange resin. The anion exchange resin is primarily charged with hydroxide (OH-) or chloride (Cl-) ions. As the feed water permeates through the anion exchange resin beads, the unwanted anionic impurities in the water are attracted to the high-affinity active sites.

    The resin beads then discharge the chloride or hydroxide ions, which are considerably non-objectionable to substitute the released pollutant ions. The repeated use of the anion exchange water filters results in exhausted resins thereby necessitating regeneration. The following visual illustration will help you understand the anion exchange water filtration process.

    What are Anion Exchange Water Filters Made of?

    Anion exchange water filters are cohesive water filtration units made of interlinked components with varied roles to play. Underneath, we unravel the primary components that make up a functional anion exchange water filter to help you understand your equipment better.

    ● The pressure vessel.

    The pressure vessel is the tank manufactured from fiberglass (FRP) or steel that houses the other primary components. The anion exchange resin is held inside the pressure vessel and the entire filtration process takes place there.

    ● The anion exchange resin.

    The anion exchange resin is primarily made up of a polymeric matrix attached to distinct functional groups. The anion resin beads are essentially charged with chloride or hydroxide ions, which are ultimately exchanged for the objectionable anionic pollutants. The resins must be regenerated periodically once the pollutant minerals overwhelm the functional groups.

    Figure 3 Anion exchange resin.

    ● The control valve.

    The control valve is tasked with monitoring and regulating the quantity of feed water injected into the pressure vessel for filtration and the amount of filtered water you collect. It consists of a meter or clock, which can be preprogrammed to automatically instigate the regeneration process.

    How are Anion Exchange Water Filters Regenerated?

    The regeneration process basically extricates the pollutant ions attached to the resin beads in the course of the in-service cycle thereby restoring the optimal functional capabilities of the anion exchange filter. The process is mainly enforced using two approaches; counter-current regeneration and co-current regeneration. Underneath, we expound on the primary steps adhered to during regeneration.

    ● Backwash.

    Backwashing is undertaken to force out the insoluble constituents like debris and colloids seized in the resin bed. Water is flushed into the pressure vessel from the bottom through the resin bed. This reclassifies the resin by eliminating air pockets. Backwashing must be regularly undertaken in co-flow anion exchange systems whereas, in counter-flow anion exchangers, it is enforced when the conditions demand so.

    ● Chemical injection.

    Anion exchange resins are essentially regenerated using bases. Strong base anions are specifically regenerated using strong bases such as caustic soda (NaOH) or caustic potash. Weak base anion resins on the other hand are typically regenerated using weak alkaline solutions of sodium carbonate (Na2CO3), ammonia (NH3), or lime. The regeneration solution is flushed through the resins at a comparatively low flow rate.

    ● Regenerate displacement.

    This process can also be referred to as the slow rinse. Essentially, water is slowly pumped through to flush out the regeneration chemicals. To mitigate damaging the resin beads, you must regulate the flow rate.

    ● Fast rinse.

    To conclude the regeneration process, clean water is flushed through the anion exchange column at a normal service flow rate in the final rinse. The fast rinse is concluded once the water depicts a specific quality.

    Figure 4 Anion exchange resin cartridge.

    What are the Main Advantages of Using Anion Exchange Water Filters?

    In essence, anion exchange water filters are highly-advantageous water treatment systems that can be utilized differently for different gains. They are often employed with cation exchange water filters to deionize water for varied applications such as laboratory water purification. They are also utilized individually to eliminate nitrates, silica, and harmful organic compounds from water.

    Anion exchange water filters are also economical filtration solutions. The cost of their maintenance is relatively low thanks to the low costs of regeneration chemicals. They regenerate automatically owing to the automatic meters or clocks attached to their control valve. Additional advantages include:

    • Quick and uncomplicated installation process.
    • Hasty results.
    • Diverse tank sizes and production capacities.
    • Removal of numerous impurities like organic compounds, silicon, and nitrates.

    Back to the guide ⇪

    What Types of Anion Exchange Water Filters do You Provide?

    Anion exchange water filters are mostly used in distinct applications. To exclusively satisfy the demands of each application they are manufactured in different versions. The difference is mainly accounted for by the distinction in resin type. Here are the two primary types of anion exchange water filters provided by NEWater.

    ● Strong base anion exchangers.

    Strong base anion resins are principally employed in dealkalization, TOC removal, demineralization, and desilication applications. They are further divided into Type 1, Type 2, and macro-porous strong base anion resins. The Type I resins are chiefly used to selectively eradicate traces of nitrates (NO3-), perchlorate (ClO4-), and sulfates (SO3-). Type 2 resins are primarily used to effectively remove anionic pollutants.

    ● Weak base anion exchangers.

    Weak base anion exchangers are characteristically recharged using sodium carbonate (Na2CO3), ammonia (NH3), or sodium hydroxide (NaOH). They utilize amine functional groups and rarely have exchangeable ions. Their primary applications include partial deionization and TOC elimination. They are however quite ineffective in eradicating weak acids like silica.

    Back to the guide ⇪

    Which Impurities Are Removed by Anion Exchange Water Filters?

    Anion exchange water filters are typically exploited to selectively eliminate anionic pollutants from raw water. The distinct types of anion exchange filters i.e. strong base and weak base anion resins are deployed in varied applications to eradicate distinct contaminants. Primarily, anion exchange water filters are utilized to effectively remove Total Organic Compounds (TOCs), nitrates (NO3-), and silica. Underneath is a comprehensive list of anionic impurities eliminated by anion exchange water filters.

    • Sulfate (SO4-).
    • Nitrate (NO3-).
    • Bicarbonate (HCO3-).
    • Arsenic and perchlorate.
    • Carbonate (CO3-).

    Figure 5 Ion exchange water filter system.

    Back to the guide ⇪

    Is it Safe to Drink Water Generated by Anion Exchange Water Filters?

    Well, anion exchange water filters eliminate harmful anionic pollutants such as nitrate, organics, silica, and arsenic. They do decrease the nitrate level to 10 mg/L or lower, which is the threshold set by most health and environmental regulators like the EPA. However, they do not eliminate non-ionic impurities, which can be harmful to the human body when consumed.

    As such, the deployment of anion exchange water filters in treating drinking water mandates a supplemental system. A reverse osmosis system, for instance, could eradicate non-anionic impurities including pathogens and cationic minerals. You can however treat your drinking using an anion exchange water filter by selectively employing it to filter feed water composed of only anionic contaminants.

    Back to the guide ⇪

    What Factors Should I Consider When Buying Anion Exchange Water Filters?

    Purchasing an anion exchange water filter or any other water treatment equipment can be a straightforward task when you arm yourself with the necessary information. A comprehensive understanding of the prospective feed water and the varied types of water filters will massively guide your selection process. Beneath are some of the most important questions you need to ask yourself when purchasing anion exchange water filters.

    ● What pollutants are in your feedwater?

    Anion exchange water filters are chiefly exploited as selective treatment solutions that target anionic pollutants. By testing samples of your prospective feed water, you will establish the contaminants that need removal and the perfect filtration system and mechanism.

    ● What is the intended use of filtered water?

    Be aware of the quality of water your prospective application demands. This will aid you in selecting the perfect post-treatment system to supplement your anion exchange water filter. It will also help you comply with the existing quality regulations.

    ● How Much Water Do You need?

    Evaluate the tank size, service flow rate, and exchange capacity to establish the right anion exchange filter that will match the scale of your application. You can even order a customized filter to make certain your quantity requirements are duly met.

    Back to the guide ⇪

    What is the Difference Between Anion Exchange Filters and Cation Exchange Filters?

    Cation and anion exchange water filters are principally distinguished by the charges attached to their active sites and the ionic impurities they eliminate. While anion exchange water filters are specifically used to remove negatively charged constituents, cation exchange filters are solely utilized to eradicate positively charged constituents. Nonetheless, both filters can be jointly used as is in the case of mixed-bed ion exchangers to optimally deionize water.

    Cation exchange filters have their resins charged with hydrogen (H+), sodium ((Na+), or potassium (K+) ions, and their primary applications include water softening and partial deionization. Anion exchange filters on the other hand have their resins charged with chloride (Cl-) or hydroxide (0H-) ions. Their principal application sectors include desilication, nitrate removal, and TOC reduction.

    Anion exchange water filters are commonly regenerated using caustic soda (NaOH), sodium carbonate (Na2CO3), ammonia (NH3), or lime. Cation exchange water filters are recharged using hydrochloric acid or sulphuric acid. They however utilize the ion-exchange process to eliminate undesired ionic pollutants from water. In demineralization applications, they are more effective when deployed jointly.

    Back to the guide ⇪

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