Figure 7

(a) Langmuir, (b) Freundlich and (c) Langmuir isotherm plots for lead adsorption onto R. kutum scale, C. glaucum shell and O. mykiss scale, respectively.
(a) Langmuir, (b) Freundlich and (c) Langmuir isotherm plots for lead adsorption onto R. kutum scale, C. glaucum shell and O. mykiss scale, respectively.