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

Table 8

Comparison of adsorbent materials reported in the literature for removal of Cu²⁺ and Co²⁺ from aqueous solutions in a fixed-bed column adsorption.

Adsorbent	Fixed-bed column adsorption parameter						Fixed-bed model	Reference
	pH	(°C)			Cu^2+	Co^2+
SBox	5.5	25	1.26 (Cu), 0.68 (Co)	0.7	0.55	0.22		This study
Tetraethylenepentamine modified sugarcane bagasse	5.0	30-35	0.31	-	0.26	-	-	[54]
Sugarcane bagasse modified with trimellitic anhydride (STA)	5.5	25	0.94 (Cu), 1.61 (Co)	1.05 (Cu); 1.4 (Co)	1.06	0.80	Thomas^a and	[23]
Citrus maxima peel	5.4–5.7	25	4.72	1.2	1.54	-	Thomas^a	[55]
Passion fruit shell					0.57	-
Sugarcane bagasse					0.35	-
Multi-metal binding biosorbent (MMBB)	5.5	23	0.47	8	0.75	-	Thomas^a	[56]
Bagasse fly ash (BFA)	5.0	30	3.14	4.3	0.42	-	-	[57]
Conventional zeolitic BFA (CZBFA)					0.83	-
Electrolyte treated CZBFA					0.84	-
Magnetized sawdust (Fe3O4-SD)	5.0	25	0.16	0.67	0.50	-	Thomas^a and	[58]
Sargassum wightii biomass	4.5	-	1.70	3.9		0.83	BDST	[59]
Biomass beads of immobilized Saccharomyces cerevisiae (PTCC 5010)	8.0	25	1.70	19.6		0.04	Thomas^a	[60]
Polyamine chelating resin (NDC-984)	5.0	30	5.00	12.0		0.96	-	[61]
Native teak leaves power	-	30	0.85	3.14	-	0.35	Thomas^a and	[62]
Biochar of teak leaves					-	0.39
Free seaweed Sargassum sp.	5.0	30	0.77	31.4	1.51	-	Thomas^b	[63]
Immobilized seaweed Sargassum sp.			0.78		1.69	-
Seaweed Sargassum sp.	3.5	30	2.08	31.4	0.12	-	Thomas^b and	[64]

^aSimplified model; ^bOriginal model. Thomas: Thomas model; B–A: Bohart–Adams model; BDST: Bed depth service time.