Removal of Pb from Water by Adsorption on Apple Pomace: Equilibrium, Kinetics, and Thermodynamics Studies

Figure 5

(a) Graphical representation of Langmuir isotherm. (b) Graphical representation of Freundlich isotherm (dose = 0.8 g, pH = 4, time = 80 min, metal concentration = 10–200 mg/L).

(a)

(b)