Activated alumina for defluorination, also known as fluorides removal alumina, is a specially engineered porous aluminum oxide adsorbent designed for the efficient removal of fluoride compounds, particularly fluoride ions, from water and other liquid streams. It exhibits a strong affinity for fluoride ions through adsorption, ion exchange, and surface complexation mechanisms.
The defluorination process occurs when fluoride ions in water are selectively attracted to and retained on the activated alumina surface. Through chemical interaction with hydroxyl groups, fluoride ions are effectively removed from solution, allowing treated water to meet stringent drinking water and industrial water quality standards. Fluorides removal alumina is especially effective for reducing excessive fluoride concentrations commonly found in groundwater sources.
Fluorides removal alumina offers numerous advantages, including high fluoride adsorption capacity, rapid adsorption kinetics, excellent selectivity toward fluoride ions. And it can simultaneously reduce trace levels of other contaminants such as arsenic, selenium, and certain heavy metal ions under suitable operating conditions.
Fluorides removal alumina has wide applications in municipal and rural drinking water treatment facilities, household water purification systems, industrial wastewater treatment plants, and groundwater remediation projects. It is also employed in the pharmaceutical, electronics, semiconductor, and power generation industries for fluoride control in high-purity process water.
| 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 |
* Water Treatment Fluorides Removal
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