Oxidized Renewable Materials for the Removal of Cobalt(II) and Copper(II) from Aqueous Solution Using in Batch and Fixed-Bed Column Adsorption

Table 7

Results of the modeling the experimental breakthrough curves with the Bohart–Adams model for adsorption of Cu²⁺ and Co²⁺ on SBox adsorbent in a fixed-bed column at 25°C.

Metal ion	Cu^2+
Number of experiment	1	2	3	4	5	6	7
	0.261	0.237	0.554	0.428	0.316	0.345	0.347
	0.101	0.075	0.061	0.042	0.092	0.068	0.100
	0.249	0.215	0.480	0.377	0.294	0.291	0.288
RMSE	0.053	0.047	0.085	0.066	0.056	0.062	0.065
	0.979	0.979	0.944	0.964	0.980	0.967	0.973
Metal ion	Co^2+
Number of experiment	1	2	3	4	5	6	7
	0.091	0.088	0.224	0.220	0.203	0.195	0.192
	0.322	0.253	0.213	0.118	0.158	0.162	0.164
	0.081	0.080	0.165	0.204	0.201	0.176	0.171
RMSE	0.043	0.022	0.059	0.019	0.047	0.034	0.032
	0.985	0.997	0.967	0.997	0.986	0.992	0.994