Defluoridation activated alumina ball

Activated alumina ball
*Large specific surface
*Used defluoridation

Defluoridation agent
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 Jaipur region of India, there is enough fluorine in the water to cause fluorosis. Activated alumina filters can easily reduce fluoride levels from .5 ppm to less than .1 ppm. The amount of fluoride leached from the water being filtered depends on how long the water is actually touching the alumina filter media. Basically, the more alumina in the filter, the less fluoride will be in the final, filtered water. Lower temperature water, and lower pH water (acidic water) are filtered more effectively too.

Product techncial specification
Index name
Al
2
o
3

%
Sio
2
%
Fe
2
o3
%
Na20
%
Burning reduction
%
Apparent density
g/ml
Specific surface area
M
2
/g
Hole volume
Ml/g
Crush strength
N/particle
Technical


requirements
≥92
≤
0.10
≤
0.04
≤
0.45
≤8
≤0.75
≥260
≥0.40
≥20
1-2mm
≥92
≤
0.10
≤
0.04
≤
0.45
≤8
≤0.75
≥260
≥0.40
≥40
2-3mm
≥92
≤
0.10
≤
0.04
≤
0.45
≤8
≤0.75
≥260
≥0.40
≥80
3-5mm
≥92
≤
0.10
≤
0.04
≤
0.45
≤8
≤0.75
≥260
≥0.40
≥100
4-6mm
≥92
≤
0.10
≤
0.04
≤
0.45
≤8
≤0.75
≥260
≥0.40
≥140
5-8mm