Activated Alumina Balls For Fluoride Removal, Arsenic Removal, Water Treatment
Introduction:
Activated Alumina – Basically it is a porous and solid form of aluminum oxide otherwise known as Al203 or alumina. It is being well known among desiccants as all the desiccants are used for the same purpose, it has varied application and due to its wide surface area, it is mostly recommended.
Technical index
| Activated Alumina Desiccant Typical Physical Properties |
| Items | Unit | Value |
| Crystalline Phase | | χ-ρ |
| Particle Size | mm | 3.0-5.0 | 4.0-6.0 | 5.0-7.0 | 6.0-8.0 |
| Appearance | - | White Sphere |
| Bulk Density | g/cm3 | 0.70-0.80 |
| Crush Strength | N ≥ | 150 | 180 | 200 | 230 |
| Specific Surface Area | m2/g | 300-330 |
| Pore Volume | cm3/g | 0.40-0.50 |
| Attrition Rate | wt% ≤ | 0.1 |
| Static Water Adsorption | wt% ≥ | 18 |
| LOI(1000℃) | - | 4-7 |
| AL2O3 | % ≥ | 94 |
| SiO2 | % ≤ | 0.02 |
| Fe2O3 | % ≤ | 0.02 |
| Na2O | % ≤ | 0.20 |
| The interval value of the indexes above are on the basis of the different grade of Activated Alumina Desiccant |
Typical Application
1.Catalyst applications
Activated alumina is used for a wide range of adsorbent and catalyst applications including the adsorption of catalysts in polyethylene production, in hydrogen peroxide production, as a selective adsorbent for many chemicals including arsenic, fluoride, in sulfur removal from fluid streams (Claus Catalyst process).
2.Desiccant
Used as a desiccant, it works by a process called adsorption. The water in the air actually sticks to the alumina itself in between the tiny passages as the air passes through them. The water molecules become trapped so that the air is dried out as it passes through the filter. This process is reversible. If the alumina desiccant is heated to ~200 °C, it will release the trapped water. This process is called regenerating the desiccant.
3.Fluoride adsorbent
Activated alumina is also widely used to remove fluoride from drinking water. In the US, there are widespread programs to fluoridate drinking water. However, in certain regions, such as the Rajasthan region of India, there is enough fluoride in the water to cause fluorosis. A study from the Harvard School of Public Health found exposure to fluoride as a child correlated with lower IQ.
Storage:
Avoid moisture, avoid scrolling, throw and sharp shocking during transportation, rainproof facilities should be readied.
It should be stored in dry and ventilated warehouse to prevent contamination or moisture.
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Water Treatment Activated Alumina Desiccant Msds For Fluoride Arsenic Removal Images
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