Eggshell-Derived Nanohydroxyapatite Adsorbent for Defluoridation of Drinking Water from Bofo of Ethiopia

Table 7

Langmuir and Freundlich isotherm model parameters describing the HA fluoride adsorption at a constant adsorbent dose of 5 g, contact time of 5 hr, and .

Parameter	Langmuir model	Parameter	Freundlich model
(mg/g)	0.2212		0.3879
(L/mg)	0.6349		0.914
	0.9657		0.763