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PSD-Ag+
purestar
PSD-Ag+ combines the proven adsorption performance of high-quality coconut shell activated carbon with the antimicrobial power of silver ions, creating a comprehensive solution for safe and reliable drinking water purification.
The high-purity coconut carbon matrix provides excellent adsorption of organic compounds, chlorine, odor and taste impurities commonly found in water supplies. The silver ions are firmly embedded into the carbon structure through a proprietary chemical bonding process, ensuring stable and controlled release of silver ions to effectively inhibit the growth of bacteria, viruses and other microorganisms in the water.
This dual-action purification and inhibition makes PSD-Ag+ ideal for use in residential drinking water systems, semiconductor industry ultra-pure water treatment, food and beverage industry water purification, and other applications requiring both high-purity water and microbial control.
Technical Specifications | PSD-Ag+ | Unit |
Lodine value | More than 1,100 | mg/g |
Moisture content | Less than 10 | % -wt |
Ash | Less than 3 | %-wt |
Packing density | 430 ~ 530 | kg/m³ |
PH | 5 ~ 8 | - |
Lntensity | More than 95 | % |
Specific surface area | More than 1,000 | m²/g |
Particle size> 12 mesh (1.70 mm) | Less than 10 | %-wt |
Particle size < 40 mesh (0.43 mm) | Less than 5 | %-wt |
Silver carrying capacity | 0.2-4 | % |
Packaging:
To meet diverse customer requirements, our activated carbon is available in multiple packaging options:
20 kg/bag – Ideal for laboratory use, pilot testing, and small-scale applications with convenient handling.
500 kg/bag – Bulk packaging designed for large-scale industrial production and continuous processing.
All packages are engineered to maintain product quality, prevent moisture absorption, and ensure easy storage and transportation.
Customized packaging available
Shipping:
Fast delivery within 15-30 days
Export standard packaging
Dual-Action Purification: Combines superior organic impurity adsorption with effective silver ion antimicrobial inhibition for comprehensive water treatment.
High-Purity Coconut Carbon Matrix: Acid-washed coconut shell carbon delivers minimal ash content and excellent adsorption performance for water impurities.
Stable Silver Ion Release: Proprietary silver loading process ensures controlled, long-lasting silver ion release for consistent microbial inhibition.
Well-Developed Pore Structure: Optimized pore network provides rapid adsorption kinetics and high removal efficiency for organic and inorganic water impurities.
Residential and commercial drinking water purification systems
Semiconductor industry ultra-pure water treatment
Food and beverage industry water purification
Under-sink and countertop water filter systems
High-Purity Coconut Shell Base with Chemically Chelated Silver Technology
Crafted from carefully selected coconut shells, PSD-Ag+ undergoes steam activation and acid washing to form a high-purity granular activated carbon base. Silver ions are then uniformly anchored to the carbon’s pores and surface via chemical chelation, creating a dual-function purification medium that combines exceptional contaminant adsorption with long-lasting antibacterial protection.
Beyond removing chlorine, VOCs, and organic impurities, the silver ions work by disrupting microbial surface charge potentials, neutralizing bacteria and preventing biofilm buildup within filtration systems. Compliant with strict food-grade and drinking water standards, PSD-Ag+ is a trusted solution for point-of-use (POU) and point-of-entry (POE) residential filters, semiconductor ultrapure water systems, and food & beverage process water treatment.
Designed for real-world filtration setups, its robust mechanical strength minimizes particle attrition during backwashing, reducing filter clogging and extending service life. Available in granular form optimized for diverse configurations, from small household units to commercial-scale purification systems, it delivers consistent, reliable performance for both contaminant removal and microbial control.
PURESTAR adheres to strict quality control and international certification standards. Our authentic certifications include:
ISO 9001: Quality Management System
ISO 14001: Environmental Management System
ISO 45001: Occupational Health & Safety Management System
NSF: Certified for drinking water safety & sanitation
HALAL: Certified for food-contact applications
MSDS (Material Safety Data Sheet) available upon request
COA (Certificate of Analysis) provided with every shipment
All products undergo strict quality inspection to deliver stable, reliable performance for global customers.
10+ years of experience in activated carbon manufacturing and export
Stable production capacity ensuring reliable supply for bulk orders
Strict quality control system from raw material to final product
Customized solutions based on different industrial applications
Fast response within 12–24 hours for all inquiries
Professional technical support for product selection and application guidance
Q1: Is the silver in PSD-Ag+ safe for drinking water applications?
A: Yes, the silver in PSD-Ag+ is firmly embedded into the carbon matrix through a proprietary chemical bonding process, ensuring only controlled, trace amounts of silver ions are released into the water. The release rate is strictly regulated to comply with EPA and WHO drinking water safety standards, providing effective microbial inhibition without compromising water safety.
Q2: How long does the silver ion antimicrobial effect last?
A: The duration of the antimicrobial effect depends on the water quality, flow rate and usage conditions. Under normal residential drinking water usage, the silver ion release remains effective for the entire service life of the carbon filter, typically 6-12 months, providing consistent bacterial inhibition throughout the filter's lifespan.
Q3: Can you provide samples before bulk order?
A: Yes, samples can be given to you. Please contact us for details. Once we charge you the sample fee, please rest assured that this will be a refund when you place a formal order.
Q4: What is your minimum order quantity (MOQ)?
A: MOQ depends on product type. Please contact us for detailed information.
Q5: How long is the delivery time?
A: Normally 15-30 working days depending on order quantity and production schedule.


