Flotation and Sorptive-Flotation Methods for Removal of Lead Ions from Wastewater Using SDS as Surfactant and Barley Husk as Biosorbent

Table 1

Parameters of isotherm for Pb(II) and correlation coefficient for two models.

Model	Parameters	Pb(II)
Langmuir [18]; 𝑞𝑒=𝑞𝑚𝑏𝐶𝑒1+𝑏𝐶𝑒	𝑞𝑚	12.7
	𝑏, l/mg	0.15
	Correlation coefficient	0.988
Freundlich [19]; 𝑞𝑒=𝐾𝐹𝐶𝑒^1/𝑛	𝐾	3.49
	𝑛	2.99
	Correlation coefficient	0.94