Product Overview
PSD-Ag+ takes our premium coconut shell activated carbon and elevates it with a precisely controlled silver loading process. The result? A dual-function media that doesn't just trap contaminants—it actively inhibits bacterial growth on the carbon surface, preventing the ""biofilm rebound"" problem that plagues standard activated carbon filters.
The silver ions (Ag+) are chemically chelated onto the carbon surface and within the pore structure, creating a sustained-release antimicrobial effect. This isn't a surface coating that washes away; it's an integral part of the carbon matrix that maintains effectiveness throughout the filter's service life.
Specifications
| Technical Specifications | PSD-Ag+ | Unit |
| Lodine value | > 1,100 | mg/g |
| Moisture content | < 10 | % -wt |
| Ash | < 3 | %-wt |
| Packing density | 430 ~ 530 | kg/m³ |
| PH | 5 ~ 8 | - |
| Lntensity | > 95 | % |
| Specific surface area | > 1,000 | m²/g |
| Particle size> 12 mesh (1.70 mm) | < 10 | %-wt |
| Particle size < 40 mesh (0.43 mm) | < 5 | %-wt |
| Silver carrying capacity | 0.2-4 | % |
Key Application Areas
- Household drinking water filters — POU and small POE systems
- Municipal tap water treatment — secondary disinfection in distribution systems
- Semiconductor industry UPW systems — biological contamination control
- Food and beverage processing — microbial control in ingredient water
- Medical and pharmaceutical water systems
How It Works
- Adsorption Phase: Contaminants are physically trapped in the carbon's extensive pore network, just like standard activated carbon
- Antimicrobial Phase: Silver ions disrupt microbial cell membranes and interfere with DNA replication, preventing colonization on the carbon bed
- Sustained Release: The chelation process ensures controlled silver release—not a burst that depletes quickly, but a steady antimicrobial barrier
