21 Years of Craftsmanship in One “Golden Media” — How ZONE KDF55 Became the Nemesis of Heavy Metals
Update time: 25-08-14 Views: 70
“Turn on the tap and the first thing you smell is harsh chlorine.”
“Your brand-new RO membrane is fouled by heavy metals within months.”
In 21 years inside the water-treatment industry, we’ve seen too many “band-aid” solutions. The real factor that decides a purifier’s lifespan and water quality is the very first barrier—the pre-filter media. Today we take you deep into ZONE’s flagship product: kdf55 high-purity copper-zinc alloy media, now the “finisher” for heavy metals and chlorine in 60-plus countries.
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One Core Formula: 85 % Copper + 15 % Zinc—A Golden Ratio
Parameter
Industry Average
ZONE Result
Pb²⁺ removal
≥95 %
≥99.2 %
Free-chlorine removal
≥90 %
≥98 %
Bacteriostatic rate
≥95 %
≥99.9 %
Source: ZONE R&D Laboratory Q2 2024 Heavy-Metal Removal Report
Traditional kdf often suffers from an imbalanced Cu/Zn ratio, causing “green water” or zinc leaching. Backed by our two 160 m roller-kiln lines (16 000 t yr⁻¹ capacity), ZONE fuses copper and zinc at the molecular level under 1 083 °C precise control, eliminating secondary contamination at the source.
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Four Application Scenarios That Solve Real Pain Points
Scenario
Typical Pain Point
ZONE KDF55 Solution
Domestic RO pre-filter
Chlorine destroys RO membranes
0.5-second chlorine reduction; membrane life extended 2–3×
Whole-house central system
Rust & silt clog pipelines
Redox potential prevents rust formation
Commercial espresso machines
Ca/Mg scaling
87 % scale reduction; lower maintenance costs
Emergency outdoor purifiers
Bacteria & algae bloom
99.9 % bacteriostatic rate; 72-hour sustained inhibition
> Case: US coffee chain Caribou Coffee replaced coconut-shell carbon with ZONE KDF55 in 2023 and cut cartridge-replacement costs by 32 % within one year.
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Three International Certifications—Your Export Passport to 60+ Countries
- ISO 9001:2015 Quality Management System (TÜV SÜD certified)
- NSF/ANSI 42 Structural Integrity (US public-health safety standard)
- RoHS Heavy-Metal Limits (EU 2011/65/EU)
Our 53 800 ft² facility in Zibo, Shandong, houses a CNAS-accredited lab. Every KDF55 batch undergoes 7 heavy-metal leaching tests, 5 microbial challenge tests, and 3 physicochemical stability tests; reports are fully traceable online.
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When KDF55 Meets the Full ZONE Portfolio: 1 + 1 > 2
- KDF55 + Alkaline Activation Balls: Chlorine removed first, then pH raised to mild alkaline in 3 seconds for a sweet taste
- KDF55 + Fluoride-Removal Media: For high-fluoride groundwater, Fluoride Removal jumps to 96 %
- KDF55 + Hydrogen Ceramic: Inhibits heavy-metal leaching while tripling dissolved hydrogen concentration
All blends can be custom-mixed to your raw-water TDS, hardness and heavy-metal profile; sample turnaround is as fast as 48 hours.
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Try It Now: Free Sample + Water-Quality Diagnosis
1. Click below, fill in your raw-water test report (or describe your water conditions)
2. Within 48 h, a ZONE technical consultant will match you with the optimal KDF55 blend
3. After confirmation, we’ll ship 500 g free of charge; OEM color boxes and neutral bags available
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About ZONE
21 years obsessed with filter media. From two roller kilns in Zibo to satisfied customers in 60+ countries, ZONE defines “good media” with data and reputation.
For OEM or bulk orders, email joy@onlyzone.cn; we respond within 12 hours.
