Product Overview
GAC SQ is a premium acid-washed coal-based granular activated carbon purpose-built for high-purity water treatment applications. Sourced from select bituminous coal, it undergoes carbonization, steam activation, and rigorous multi-stage acid washing to remove residual ash and extractables. The result is a consistent neutral pH of 5–8, paired with high-performance adsorption: iodine value >950 mg/g and methylene blue >160 mg/g.
Available in two particle configurations—GAC 830 SQ (coarser grade) and GAC 1240 SQ (finer grade)—this grade meets the strictest purity standards. It is specifically designed for electronics-grade ultra-pure water systems, food and beverage processing, and point-of-entry water purification, where low leachable metals, pH stability, and reliable organic contaminant removal are essential.
Specifications
| Technical Specifications | GAC 830 SQ | GAC 1240 SQ | Unit |
|---|---|---|---|
| Iodine Adsorption Value | >950 | >950 | mg/g |
| Moisture Content | <10 | <10 | % -wt |
| Methylene Blue Adsorption Value | >160 | >160 | mg/g |
| pH | 5-8 | 5-8 | - |
| Average Particle Size | 1.4-1.7 | 1.2-1.4 | mm |
| Crush Strength | >90 | >90 | % |
| Specific Surface Area | >900 | >900 | m²/g |
| Particle Size >8 Mesh (1.70 mm) | <10 | - | % -wt |
| Particle Size >12 Mesh (1.70 mm) | - | <5 | % -wt |
| Particle Size <30 Mesh (0.6 mm) | <5 | - | % -wt |
| Particle Size <40 Mesh (0.43 mm) | - | <5 | % -wt |
Key Application Areas
- Ultra-Pure Water Systems — Polishes deionized water for semiconductor and electronics manufacturing, removing trace organics and chlorine without introducing ionic contamination.
- Beverage & Brewery Water Treatment — Purifies process water for beer, soft drinks, and bottled water production, ensuring consistent flavor and compliance with food-grade standards.
- Point-of-Entry (POE) Drinking Water — Installed at building entry to remove chlorine, taste, and organic contaminants while maintaining neutral pH effluent for residential and commercial systems.
Key Advantages
- Acid-Washed for Electronics & Food Grade: pH 5–8 and reduced ash minimize conductivity spikes and metal leaching, protecting sensitive semiconductor processes and food-contact systems.
- Dual Performance Indicators: Iodine >950 mg/g ensures rapid dechlorination and small-organic removal; methylene blue >160 mg/g confirms capacity for larger color and organic molecules.
- Dual Mesh Flexibility: GAC 830 SQ (1.4–1.7 mm) optimizes high-flow POE systems; GAC 1240 SQ (1.2–1.4 mm) enhances contact efficiency for ultra-pure water polishing.
- Coal-Based Economics with Premium Purity: Bituminous coal base provides cost-effective high capacity, while acid washing achieves purity levels approaching coconut shell grades.
Available particle size
- 8×30 Items ( 0.6 ~ 2.36 mm)
- 12×40 Items ( 0.43 ~ 1.7 mm)
Packaging
- The 20kg / Package
- The 500 kg / Package
