From: A critical study on efficiency of different materials for fluoride removal from aqueous media
Adsorbent
AC (mg/g)
CR (mg/L)
pH
Ref.
Lignite, Fine coke and Bituminous coal
6.9-7.4
3-90
5-10
[99]
Fired clay chips
7.2-9.0
5-20
5-7
[101]
Tamarindus indica Fruit Shells (TIFSs)
22.3
2-8
7
[105]
Pumice stone
41
10
3-10
[107]