Defluoridation with Locally Produced Thai Bone Char

Table 4

Parameters for the Freundlich sorption isotherm comparing Thai and Indian bone char.

Sample
	THAI BC	IND BC	THAI BC	IND BC	THAI BC	IND BC
GW1	0.053	0.064	0.634	0.664	0.965	0.947
GW2	0.057	0.079	0.634	0.792	0.953	0.932
GW3	0.060	0.051	0.654	0.812	0.943	0.987
GW4	0.049	0.069	0.936	0.679	0.925	0.932
GW5	0.056	0.066	0.705	0.499	0.862	0.805
GW6	0.072	0.099	0.757	0.766	0.987	0.957
Syn.	0.063	0.081	0.595	0.671	0.941	0.950
value	0.063		0.940