Fluoride Removal Filter
Our fluoride removal technology is based on aluminium activated calcium hydroxypatite proven to be one of the most effective media for fluoride removal.
NEWDEF ®Hydroxyapatite – Fluoride removal
Hydroxylapatite, also called hydroxyapatite (HA), is a naturally occurring mineral form of calcium apatite with the formula Ca5(PO4)3(OH), but is usually written Ca10(PO4)6(OH)2 to denote that the crystal unit cell comprises two entities. Hydroxylapatite is the hydroxylendmember of the complex apatite group. The OH− ion can be replaced by fluoride, chloride or carbonate, producing fluorapatite or chlorapatite. It crystallizes in the hexagonalcrystal system. Pure hydroxylapatite powder is white. Naturally occurring apatites can, however, also have brown, yellow, or green colourations, comparable to the discolou®rations of dental fluorosis.
It is one of the most effective adsorbents of fluoride with much faster reaction times than Activated Alumina.
1. Defluoridation Capacity
The defluoridation capacity of NEWDEF®1 is about 1~4 mg/g which is higher than normal media in the same conditions. The capacity is impacted by different raw water quality conditions including fluoride concentration、 temperature、co-existing ions etc..
Hydroxyapatite Features and Benefits
- High capacity and shorter contact time
- Very safe to use; no dissolution of toxic and hazardous substances
- High efficiency, NEWDEF®1 can remove up to 99% fluoride in raw water.
- Limited inhibition by other competing ions
- Lower regeneration cost and simple regeneration process
- Not only restricted to Fluoride ,but can remove iron and manganese as well
- Can be regenerated.
Performance Comparison- Fluoride Removal media
Figure 1 and Figure 2 demonstrate that the NEWDEF® media have higher performance than other common defluoridation materials under the same conditions. The treated water volume of NEWDEF® is About 5.09—11.7 times of activated alumina and 12.9—23 times of activated clinoptilolite
Details Fluoride Removal Backwash valves
Our composite tanks come with a number of options including Clack Automated Backwash Valves .