Fig. 3. Temperature effects on the kinetics of SeO₃^–2 sorption on montmorillonite (Mt) as influenced by hydroxyaluminum (HyA) and hydroxyaluminosilicate (HAS) interlayerings and coatings. Experiments were conducted with clay concentration, 0.5 g L^–1; initial pH 4.5; initial concentration of SeO₃^–2 0.025 mM; and background electrolyte 0.01 M NaNO₃.