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Introduction
Activated alumina defluorination adsorbent, is a kind of aluminum oxide specially designed for removal of fluorides (especially fluoride ion) from water or other fluids. It has a strong affinity for fluorides, and can form hydrogen bonds or undergo ion exchange with fluoride ions.
Activated alumina defluoridation agent primarily rely on ion exchange and surface adsorption involving surface hydroxyl groups and fluoride ions. It firmly adsorb fluoride ions from the water onto the material's surface, thereby reducing fluoride levels and ensuring the treated water meets standards for drinking or industrial use.
Activated alumina adsorbent for defluorination also possesses the advantages of high water absorption rate, strong selective adsorption ability, high acid and alkali tolerance, low wear rate and long cycle life. As one of the most widely used adsorption materials for fluoride removal, activated alumina is typically used for treatment of domestic drinking water and industrial waste water, also used for fluoride control of high-purity water in the pharmaceutical and electronics industries.
Technical Specification
|
Crystal Type |
X-ρ |
||
|
Chemical Formula |
Al2O3·nH2O |
||
|
Diameter(mm) |
3-5 |
2-4 |
1-3 |
|
Bulk Density(g/ml) |
≥0.7 |
≥0.7 |
≥0.7 |
|
Crush Strength(N) |
≥110 |
≥60 |
≥40 |
|
Surface Area(m2/g) |
≥300 |
≥300 |
≥300 |
|
Pore Volume(cm3/g) |
≥0.38 |
≥0.38 |
≥0.38 |
|
Fluoride Removal Efficiency (mg/g) |
20-30 |
20-30 |
20-30 |
|
Wear Ratio(%) |
≤0.60 |
≤0.60 |
≤0.60 |
Application
- Water Treatment
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