Adsorbent

GAC (g∙L^?1)

Tea leaves (g∙L^?1)

MnO₂ (g∙L^?1)

Coffee residue (g∙L^?1)

Concentration (C_s)

2.913, 5.825, 8.738

2.913, 5.825, 8.738

0.388, 0.583, 1.214

0.971, 2.913, 4.369, 5.825, 8.738