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Radicallite UC3 / SC3
A specialized filter media developed to remove humic color.
It utilizes O radicals generated through catalytic reactions with chlorine-based oxidants to break the resonance between the chromophores and auxochromes of humic substances, thereby reducing color.
Features
A special filter material developed to remove humic chromaticity. The presence of an oxidizing agent such as sodium hypochlorite in water acts as a catalyst to generate O-radicals with strong oxidizing power, which cleaves the bonds of chromophores and axochromes in humic substances. The chromaticity is reduced.

● No sludge generation
● Easy daily maintenance
● Compatible with existing equipment
● Reduced backwash frequency
● Performance maintained with annual replenishment
Product Specifications
| Product Name | UC3 | SC3 |
|---|---|---|
| Particle Size | 0.3 – 0.65mm | 0.3 – 0.65mm |
| Content 75% _or more | Content 75% _or more | |
| Appearance | Black / Granular | |
| Apparent Density | 1.4~1.5 g/cm3 | 1.0~1.2 g/cm3 |
| Color Removal Level | ◎ | 〇 |
Packing
UC3: 20 L PE bag, 600 L flexible container bag
SC3: 20 L PE bag, 800 L flexible container bag
*Pallet loading available upon request.
| When placing your order, please specify the [Effective Size] _and [Uniformity Coefficient]. |
Tips
Humic Substance Color
This refers to the collective term for dark brown organic matter in soil, believed to originate from the microbial decomposition of ancient plant matter.
As a forested nation, Japan has confirmed significant amounts throughout its regions.
It is difficult to remove through conventional water purification processes, and requires extremely strong oxidizing power for its oxidative decomposition.
The color standard set by Japan’s tap water quality standards is 5 degrees or less.
Humic color is observed nationwide, but we recommend using Radicalite UC3 for source water with color levels exceeding 8 degrees,particularly common in the Kanto, Tohoku, and Hokkaido regions, _or when water quality fluctuations are a concern.For applications aiming to remove a small amount of raw water color (e.g., reducing it by 2 to 3 degrees), please use Radicalite SC3. We recommend conducting demonstration tests to select the appropriate filter media and confirm removal capacity. For consultations regarding selection, please contact our company.
*This product does not remove artificial pigments such as those found in dyeing wastewater.
Head Office
1-12-11 Tagawakita, Yodogawa-ku,Osaka
532-0021
Overseas Business Department
TEL +81-6-6301-6460
FAX +81-6-6308-3022




