Adsorbent Code qe exp. mg.g−1 qecal.  mg.g−1 K1 (min−1) R2
MACS 155.5 4.08 0.036 0.600
MACL 134.0 3.92 0.019 0.925
ACS 35.0 2.98 0.213 0.929
ACL 33.0 1.97 0.029 0.511
DS 92.0 3.53 0.018 0.993
DL 70.6 4.49 0.034 0.997
Table 5: Parameters of first order model for adsorption of Pb2+ by DS, DL, ACS, ACL, MACS and MACL.
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