Taguchi design of optimum process parameters for sorption of copper ions using different sorbents (CROSBI ID 268457)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Svilović, Sandra ; Mužek, Mario Nikola ; Nuić, Ivona ; Vučenović, Petra
engleski
Taguchi design of optimum process parameters for sorption of copper ions using different sorbents
The sorption of Cu ions on pure fly ash-based geopolymer, fly ash-based geopolymer with Pb ions addition (modified) and NaX was studied. Taguchi's approach was applied to determine the impact of solute concentration (c), temperature (T), mixing time (t) and sorbent type (S) on the sorption of Cu ions onto different sorbents under batch conditions. Optimum experimental conditions and influence of controllable factors were determined using lager-the-better approach. The influence in descending order is c > S > t > T, for both removal and loading. Also, the impact of sorbents type and solute concentration on the process equilibrium was examined. The equilibrium amount of Cu retained on the sorbents in equilibrium (qe) was as follows: pure geopolymer – 1.169 mmol g-1, modified geopolymer – 1.186 mmol g-1, and zeolite NaX – 1.695 mmol g-1. The experimental data were modelled using Jovanovic, Khan, Baudu, and Fritz-Schlünder isotherm models and their goodness-of-fit were compared. The Baudu isotherm model was the most useful in predicting the equilibrium of Cu sorption on pure and modified geopolymer. Goodness of fit of the selected isotherm models for the sorption of Cu ions on zeolite NaX was in order: Fritz-Schlünder > Khan > Jovanovic > Baudu.
Taguchi method ; Sorbents ; Copper ; Isotherms ; Sorption
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Podaci o izdanju
80 (1)
2019.
98-108
objavljeno
0273-1223
1996-9732
10.2166/wst.2019.249