İyon değiştirici reçine formunun sulardan fenol giderilmesindeki etkisi
Makaleler > Tam Makale · 2017
Yazarlar: Özge Sandikçi, Ayşegül Parmaksiz, Arzu Kocaoğlu, Özgür ARAR, Ümran Yüksel
DergiPark (Istanbul University), Uluslararası, 2017
Özet
The removal of phenol from aqueous solutions by strongly basic anion exchange resin (Relite 2 AS) has been investigated.The effect of resin amount, pH of solution, temperature and initial phenol concentration on phenol removal was observed.Obtained results showed that the resin form has an important effect on phenol removal.In OH-form, pH has slight influence on phenol removal but when the resin was converted to Cl-form and solution pH was increased to 11, percent removal of phenol increased.Removal of phenol was 97% in Cl-form and 57 % in OH-form of resin.The Freundlich model describes the phenol removal onto the two different forms.On the other hand, pseudo-second order kinetic fit well with experimental results.Kinetic of resin in Clform is faster than in OH-form.The 97% of phenol removed from solution in Cl-form in 60 minutes.Thermodynamic parameters (ΔG, ΔH and ΔS) for the sorption of phenol were determined using the Gibbs-Helmholtz equation.The obtained results indicated that, sorption of phenol onto such form of resin is exothermic.