The sorption behavior of a nickel-insolubilized humic acid system in a column arrangement

摘要: Abstract The sorption characteristics of insolubilized humic acid (IHA) were investigated for Ni (II) in a column arrangement. sodium form the IHA (INaA) was used as solid phase. Column operations performed with five steps and all them monitored continuously by flowthrough cell-adapted UV-Vis spectrophotometer. Thus, solid-phase extraction (SPE) visualized breakthrough curves analyses progress evaluated. However, calculations evaluations focused on atomic absorption spectrophotometric (AAS) solutions collected during stripping steps. There high correlation ( r 2 , 0.972) between peak area AAS data effect concentration pH loading solution onto INaA investigated. Sorption evaluated using Freundlich, Langmuir, Dubinin–Radushkevich (D-R) adsorption isotherms, well Scatchard plot analysis. Multilayer found to be agreeable (II). From D-R isotherm mean free energy (E) calculated (6.65 kJ mol−1) attributed multilayer sorption. Finally, characteristic INaA-Ni system compared that INaA-Cu system, possible separation two ions binary mixture is discussed.