Granular Activated Carbon for Water Treatment (GAC)
CAS Number: 7440-44-0
Granular activated carbon (GAC) derived from coal, coconut shell, or wood is a high-surface-area adsorbent used in water treatment for taste, odor, and organic micropollutant removal. It adsorbs chlorination by-products (THMs, HAAs), pesticides, pharmaceuticals, and industrial organics from drinking water and industrial process water. Used in fixed-bed adsorbers and as biological activated carbon (BAC).
Technical Specifications
| appearance | Black irregular granules |
| ash content | ≤8% |
| iodine number | ≥900 mg/g |
| effective size | 0.5–2.0 mm |
| BET surface area | 900–1,200 m²/g |
| moisture content | ≤5% |
| methylene blue number | ≥180 mg/g |
Applications
- Drinking water taste, odor, and organic micropollutant removal
- Groundwater remediation for organic contaminant removal
- Industrial process water polishing and organic removal
- Wastewater treatment for color and COD reduction
- Dechlorination of RO pre-treatment water
Key Features
- High iodine and methylene blue values for broad-spectrum organic adsorption
- Coconut shell grade offers superior micropore volume for small molecule removal
- Reactivatable — spent GAC can be thermally regenerated for reuse
- NSF/ANSI 61 certified grades available for potable water contact
Send Inquiry
More in Specialty Water Treatment Chemicals
1-Hydroxyethylidene-1,1-Diphosphonic Acid (HEDP)
2809-21-4
Aluminum Sulfate Coagulant (Alum)
10043-01-3
Anionic Polyacrylamide Flocculant
9003-05-8
Anthracite Filter Media
68909-21-7
Bronopol Industrial Water Treatment Biocide
52-51-7
CMIT/MIT Blend Biocide (1.5%)
26172-55-4
CO2 pH Adjustment System for Water Treatment
Carbohydrazide Oxygen Scavenger
497-18-7