Competitive and Noncompetitive Batch Sorption Studies of Aqueous Cd(II) and Pb(II) Uptake onto Coffea canephora Husks, Cyperus papyrus Stems, and Musa spp. Peels

Figure 8

Langmuir sorption isotherms of Cd²⁺ ions by C. canephora (a), Musa spp. (b), and C. papyrus (c) in noncompetitive sorption studies.

(a)

(b)

(c)