Regeneration Analysis of Bone Char Used in Water Defluoridation: Chemical Desorption Route, Surface Chemistry Analysis and Modeling

Table 2

Textural parameters of raw and regenerated bone char samples. Samples were regenerated with 0.075 mol/L NaOH.

Sample	BET surface area (m^2/g)	Pore volume (cm^3/g)	Pore size (nm)
Raw	58	0.09	5.6
1^st regeneration cycle	53	0.08	5.7
5^th regeneration cycle	40	0.07	5.7
10^th regeneration cycle	43	0.07	5.7