Continuous Fixed-Bed Column Study and Adsorption Modeling: Removal of Lead Ion from Aqueous Solution by Charcoal Originated from Chemical Carbonization of Rubber Wood Sawdust

Table 4

Parameters of Adams-Bohart, Thomas, and Yoon-Nelson model under column adsorption process.

(mg/L)	(mL/min)	(cm)	pH	Adams-Bohart			Thomas			Yoon-Nelson
				(L/mg min)	(mg/L)		(L/min mg)	(mg/g)		(min^−1)	(min)
10	15	5	5.2	12.3	4504.40	0.86	16.6	36884.55	0.96	1.66	624.58	0.96
20	15	5	5.2	4.25	8634.85	0.74	7.3	60212	0.92	1.46	505.78	0.92
30	15	5	5.2	1.67	12640.31	0.69	3.83	66794.92	0.87	1.15	374.2	0.87
20	10	5	5.2	7.1	6089.58	0.90	9.85	50174.93	0.99	1.97	629.70	0.99
20	15	5	5.2	4.25	8634.85	0.74	7.3	60212	0.92	1.46	505.78	0.92
20	20	5	5.2	2.8	10939.53	0.50	6.15	57229.79	0.80	1.23	357.83	0.80
20	15	2	5.2	2.4	20067.67	0.29	5.6	79297.67	0.57	1.12	296.04	0.57
20	15	5	5.2	4.25	8634.85	0.74	7.3	60212	0.92	1.46	505.78	0.92
20	15	7	5.2	4.3	6683.07	0.81	8.5	54629.77	0.98	1.70	637.53	0.99
20	15	5	3.1	2.35	8030.06	0.32	5.55	37160.54	0.69	1.11	309.919	0.69
20	15	5	5.2	4.25	8634.85	0.74	7.3	60212	0.92	1.46	505.78	0.92
20	15	5	6.4	3.85	8604.519	0.65	6.7	60470.99	0.86	1.34	485.78	0.86