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Table 4 Values of adsorption parameters for lead

From: Adsorption of aqueous Cd(II) and Pb(II) on activated carbon nanopores prepared by chemical activation of doum palm shell

Sample	Pb²⁺ (mg/l)	C_e (mg/l)	q_e (mg/l)	q_t (mg/g)	% Adsorbed
A	0.13	0.02	0.11	0.0022	84.62
B	0.39	0.08	0.31	0.0062	79.49
C	0.52	0.01	0.51	0.0102	98.08
D	0.92	0.19	0.73	0.0146	79.35
E	1.18	0.30	0.88	0.0176	74.58
F	1.32	0.35	0.97	0.0194	73.48
G	2.09	0.22	1.87	0.0374	89.47
H	2.87	0.04	2.83	0.0566	98.61
I	3.26	0.27	2.99	0.0598	91.72
J	4.57	0.08	4.49	0.0898	98.25

Optimum operating conditions: [Pb²⁺] = 50 mg/l, pH = 6.0, temp = 30 °C and adsorbent dosage = 1.0 g/50 ml

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