Water Quality Upgrade: ZONE KDF55 Media – An All-Round Water Purification Solution for Heavy Metals, Chlorine, and Microorganisms

As people's pursuit of a healthy lifestyle continues to escalate, "water quality safety" has long surpassed the basic requirement of "meeting standards" and become a core issue related to drinking water taste, skin health, household appliance lifespan, and even long-term health. Although municipal tap water undergoes preliminary treatment, it may still contain residual chlorine, trace heavy metals (such as lead and mercury), iron and manganese ions from pipe corrosion, and organic substances from environmental infiltration. Long-term use of water without advanced filtration not only causes drinking water to have an odd odor and scale buildup on household appliance inner walls but may also lead to the accumulation of heavy metals in the body, posing potential health risks. At this point, an efficient and multi-functional water filter media becomes the key "line of defense" for safeguarding water quality.

  

Water Filter Media Basics: Core Functions and Limitations of Different Media

In the field of water treatment, the choice of filter media directly determines the purification effect. Common water filter media on the market each have their own focuses but also have functional limitations:

- Quartz sand: As a basic filter media, it mainly intercepts large impurities such as sediment and suspended particles, acting as a "coarse filtration" function. However, it cannot remove soluble pollutants (such as heavy metals and residual chlorine).

- Activated carbon: It adsorbs organic substances, odors, and part of residual chlorine through its porous structure to improve taste. But its adsorption capacity is limited, it is prone to saturation, and bacteria may breed after long-term use, requiring frequent replacement.

- Manganese sand: It targets water with excessive iron and manganese, converting them into precipitates for removal through oxidation reactions. However, it has weak processing capabilities for other heavy metals and microorganisms.

 

Among numerous filter media, KDF (copper-zinc alloy filter media) stands out for its "all-in-one" characteristics. Especially ZONE's independently developed and produced KDF55 media, which integrates four core needs: heavy metal removal, chlorine degradation, microbial inhibition, and scale prevention, making it an "all-round partner" for water purification systems.

  

ZONE KDF55: NSF-Certified All-Round Water Filter Media, a Quality Choice with 23 Years of Technical Expertise

As a world-leading manufacturer of water treatment filter media, ZONE has been focusing on the R&D and production of water filter media since its establishment in 2002. Currently, it has a 193,680-square-foot production base, 3 modern production lines with a monthly capacity of 600 tons, and an annual bio-ceramic ball production capacity exceeding 16,000 tons. Its products are exported to more than 70 countries with over 1,500 shipments per year. Our KDF55 media (product model: ZONE-CUZN-A01) has not only obtained international authoritative certifications such as NSF, ISO9001, and SGS but also achieved comprehensive breakthroughs in water purification efficiency, stability, and safety with "high-purity copper-zinc alloy" as the core material.

  

Core Advantage 1: Efficiently Captures Heavy Metals, Safeguarding a "Heavy Metal-Free" Drinking Water Environment

Heavy metal pollution is an invisible killer of water quality—aging pipes may release lead, and industrial wastewater infiltration may bring mercury, cadmium, and arsenic. Even at extremely low concentrations, long-term intake of these ions can damage the nervous and digestive systems. Through electrochemical redox reactions, ZONE KDF55 can accurately capture various heavy metal ions in water such as Pb²⁺, Cd²⁺, Cr⁶⁺, As³⁺, Hg²⁺, Mn²⁺, Ni²⁺, Al³⁺, and Fe³⁺:

- Zinc, as the anode, actively releases electrons to reduce soluble heavy metal ions into insoluble metal elements (such as lead atoms), which are plated on the surface of KDF55 particles.

- Mercury ions form stable copper-mercury alloys with copper, while arsenic and cadmium are converted into precipitates through catalytic reactions.

- According to ZONE laboratory test data, after treatment with KDF55, the arsenic (As) content in water is stably below 0.001mg/L, cadmium (Cd) <0.000435mg/L, lead (Pb) <0.00007mg/L, and iron (Fe) is reduced from 0.25mg/L in raw water to below 0.005mg/L, far lower than the national drinking water hygiene standards.

   

These precipitates can be easily removed through regular backwashing, eliminating the need for frequent media replacement, which not only reduces usage costs but also avoids secondary pollution.

  

Core Advantage 2: Effectively Degrades Residual Chlorine and Organic Substances, Eliminating "Disinfectant Taste"

Municipal tap water is often disinfected with chlorine, but residual chlorine can react with organic substances in water to form harmful substances such as chloroform. It not only gives drinking water a pungent "disinfectant taste" but may also irritate the skin and respiratory tract during bathing. Through cathodic reduction reactions, ZONE KDF55 can quickly degrade residual chlorine:

- Copper, as the cathode, reduces residual chlorine (HOCl) into harmless chloride ions (Cl⁻), with the reaction formula: Zn + HOCl + H₂O + 2e⁻ → Zn²⁺ + Cl⁻ + H⁺ + 2OH⁻.

- Meanwhile, its electrochemical activity can decompose pesticide residues and volatile organic compounds (VOCs), and adsorb rust and colloids, fundamentally improving water taste.

 

Compared with traditional activated carbon, ZONE KDF55 has a more durable chlorine removal effect (no adsorption saturation issue) and does not breed bacteria due to organic matter accumulation, ensuring more stable purification efficiency.

  

Core Advantage 3: Inhibits Microbial Growth, Providing "Protective Armor" for Water Purification Systems

If water filter media itself breeds bacteria, it will instead become a source of water pollution—especially activated carbon media, whose porous structure is prone to harboring dirt and grime. Recognized by the U.S. Environmental Protection Agency (EPA) as a "microbial inhibition device", ZONE KDF55 achieves bacteriostatic and algae-killing effects through three mechanisms:

1. Sudden change in oxidation-reduction potential (ORP): After water passes through KDF55, the ORP drops from +200mV to -500mV, significantly exceeding the suitable potential range for microbial survival and damaging bacterial cell membranes.

2. Generation of active substances: Hydroxide ions (OH⁻) and hydrogen peroxide (H₂O₂) produced during the reaction can quickly inhibit oxidant-sensitive microorganisms (such as Escherichia coli and algae).

3. Zinc ion dissolution: Trace zinc ions can prevent the synthesis of microbial enzymes and inhibit the production of algae chlorophyll—this means that if KDF55 is used for the pretreatment of reverse osmosis (RO) membranes, it can effectively avoid algae adhesion and membrane pore clogging, extending the service life of the membrane.

  

Core Advantage 4: Prevents Scale Formation, Extending the Lifespan of Household Appliances and Pipes

Scale (mainly composed of calcium carbonate) is a common problem in household and industrial water use—adhesion to the inner walls of water heaters reduces heating efficiency, and clogging of water purifier pipes affects water flow. By changing the crystallization form, ZONE KDF55 fundamentally reduces scale:

- Zinc ions dissolved from the media interfere with the crystallization process of calcium carbonate, converting it from hard "calcite-type" scale to loose "aragonite-type" scale.

- Soft scale will not adhere to the inner walls of pipes and household appliances and can be easily washed away through daily water flow or backwashing, saving energy consumption of household appliances and reducing the maintenance frequency of water purification systems.

  

ZONE KDF55: Adaptable to Diverse Scenarios, Customized Water Purification Solutions

Whether for household water purification systems or industrial and commercial water treatment projects, ZONE KDF55 can provide flexibly adaptable solutions:

- Household scenarios: It can be used as the core media of central water purifiers and pre-filters, combined with activated carbon to achieve triple protection of "heavy metal removal + chlorine removal + bacteriostasis", especially suitable for areas with hard water or excessive heavy metals.

- Industrial scenarios: It is used for aquaculture water treatment (removing heavy metals and inhibiting algae), large-scale industrial circulating water systems (scale inhibition and bacteriostasis), and pretreatment of RO reverse osmosis and ion exchange systems.

- Commercial scenarios: It is suitable for bathing water filtration in hotels and hospitals (reducing skin irritation caused by residual chlorine) to enhance user experience.

 

Meanwhile, ZONE provides KDF55 media in various specifications (mesh sizes include 5-10, 10-40, 40-60, 60-100, etc.). Packaging options include 1kg PP sealed bags, 5kg aluminum foil bags, 25kg kraft bags/woven bags, and OEM customization services are also available according to customer needs to meet the installation and use requirements of different scenarios.

  

Choose ZONE: 23 Years of Focus on Water Purification, Guarding Every Drop of Healthy Water with Technology

From the commissioning of the first production line in 2002 to the current independent R&D laboratory, quality control laboratory, and product showroom, ZONE has always adhered to "technology-driven and quality-first" as its core. Our KDF55 media not only has obtained international certifications such as NSF, FDA, and REACH but also continuously optimizes product performance with technical support from the China National Ceramic Research Institute.

 

If you are troubled by water quality issues or need to match efficient filter media for water purification projects, please tell us your raw water quality and treatment needs (such as drinking water, industrial water, bathing water, etc.). Based on 23 years of industry experience, ZONE will provide you with tailor-made water treatment solutions. Choosing ZONE KDF55 means choosing a "safe, efficient, and durable" water quality protection force, allowing every drop of water to carry health and peace of mind.