Adsorbent quantity (g)
q(mg/g)
Pb(II)
Cd(II)
Zn(II)
0.1 0.3 0.5 0.7 1.0 2.0
5.000 1.588 0.951 0.678 0.474 0.236
3.917 1.539 0.929 0.661 0.462 0.230
71.55 26.15 16.71 12.43 9.220 4.500