Physical and Chemical Properties
Anthracite filter media features a high carbon content and robust structure, ensuring durability and chemical stability in demanding filtration environments. Below is a summary of its core properties:
| Property | Specification | Description/Source |
|---|---|---|
| Color | Black | Shiny, coal-based appearance for easy identification. |
| Carbon Content | 92% – 96% | High fixed carbon ensures chemical inertness and resistance to degradation . |
| Specific Gravity | 1.3 – 1.6 | Low density allows for efficient layering in multi-media filters . |
| Bulk Density | 50 – 52 lbs/ft³ (800 kg/m³) | Lightweight design reduces shipping costs and eases handling . |
| Hardness (Mohs Scale) | 3.0 – 3.5 | Resistant to abrasion during backwashing, extending media lifespan . |
| Ash Content | < 5% | Low impurities minimize leaching risks in potable water applications . |
| Moisture Content | < 2% | Dry composition prevents clumping and ensures consistent performance . |
| Acid Solubility | < 1% (in HCl) | Compliant with water treatment standards for minimal dissolution . |
These properties make anthracite filter media a reliable choice for applications requiring long-term stability and minimal maintenance.
Technical Specifications
| Parameter | Specification | Notes |
|---|---|---|
| Effective Size (ES) | 0.60 mm – 1.6 mm | Customizable based on application; standard for coarse particle removal . |
| Uniformity Coefficient (UC) | < 1.5 | Ensures even distribution and optimal flow . |
| Bed Depth | 24 – 36 inches (610 – 915 mm) | Recommended for single or multi-bed filters; 10-18 inches for multi-layer systems . |
| Freeboard | 50% of bed depth (minimum) | Allows for effective backwashing without media loss . |
| Service Flow Rate | 5 – 15 gpm/ft² (12 – 37 m/h) | Up to 3-4 times faster than sand filters, enhancing throughput . |
| Backwash Rate | 15 – 25 gpm/ft² (37 – 61 m/h) | Reduced rates compared to other media, conserving water . |
| pH Compatibility | 6.0 – 9.0 | Suitable for neutral to slightly alkaline waters; inert in common acids and bases . |
| Temperature Range | Up to 40°C (104°F) | Versatile for ambient and industrial conditions . |
All specifications comply with AWWA B100-16, NSF/ANSI 61, and EN 12909 standards, ensuring safety for potable water and industrial use .
Applications and Uses
Anthracite filter media is widely applied in scenarios demanding high-efficiency particle removal and extended filter runs. Key uses include:
- Municipal Drinking Water Treatment: As the top layer in multi-media filters, it removes coarse solids and protects finer media, improving overall water clarity and compliance with global standards .
- Wastewater and Industrial Filtration: Effective for turbidity reduction in effluent treatment, recycling processes, and cooling systems, where it handles high solids loading .
- Swimming Pools and Aquaculture: Enhances water quality by filtering out impurities, supporting safe and sustainable operations .
- Environmental Remediation: Used in stormwater management and groundwater purification to meet regulatory requirements .
- Specialized Industries: Ideal for food/beverage processing, pharmaceuticals, and power plants, where low silica sensitivity is critical .
In multi-media configurations (e.g., anthracite over sand and garnet), it promotes deep-bed filtration, achieving removal efficiencies up to 99% for particles >5 microns .
Packaging and Storage
- Standard Packaging: 1 cubic foot bags (50 lbs) or 1-ton super sacks for bulk shipments .
- Storage Recommendations: Store in dry, covered areas to prevent moisture absorption. Shelf life is indefinite under proper conditions.
- Shipping Compliance: Meets international trade standards for hazardous material classification (non-hazardous).
Certifications and Compliance
- AWWA B100-16: Granular filter material standard .
- NSF/ANSI 61: Certified for drinking water contact .
- EN 12909: European standard for water treatment chemicals .
- ISO Compliance: Aligns with global quality management for export reliability .
This product specification is based on verified industry data and is intended for informational purposes. For custom formulations or testing, contact our technical team. All claims are supported by established standards to ensure regulatory adherence and customer trust.
