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Decolourization and mineralization of commercial reactive dyes by using homogeneous and heterogeneous Fenton and UV/Fenton processes (CROSBI ID 147834)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Papić, Sanja ; Vujević, Dinko ; Koprivanac, Natalija ; Šinko, Danijel Decolourization and mineralization of commercial reactive dyes by using homogeneous and heterogeneous Fenton and UV/Fenton processes // Journal of hazardous materials, 164 (2009), 2-3; 1137-1145

Podaci o odgovornosti

Papić, Sanja ; Vujević, Dinko ; Koprivanac, Natalija ; Šinko, Danijel

engleski

Decolourization and mineralization of commercial reactive dyes by using homogeneous and heterogeneous Fenton and UV/Fenton processes

The oxidative decolourization and mineralization of three reactive dyes in separately prepared aqueous solutions C. I. Reactive Yellow 3 (RY3), C. I. Reactive Blue 2 (RB2) and C. I. Reactive Violet 2 (RV2) by using homogeneous and heterogeneous Fenton and UV/Fenton processes have been investigated. The effects of H2O2, Fe2+ and Fe0 concentrations, Fe2+/H2O2 and Fe0/H2O2 molar ratios at pH 3 and T=23 1 C have been studied. Optimal operational conditions for the efficient degradation of all three dye solutions (100 mg L-1) were found to be Fe2+/H2O2=0.5 mM/20 mM and Fe0/H2O2=2 mM/1mM. The experimental results showed that the homogeneous Fenton process employing UV irradiation was the most effective. By using this process, the high levels of mineralization (78-84 %) and decolourization (95-100 %) were achieved. Pseudo-first order degradation rate constants were obtained from the batch experimental data.

Reactive dyes degradation; Wastewater treatment; Advanced Oxidation Processes; Fenton type processes; UV irradiation

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Podaci o izdanju

164 (2-3)

2009.

1137-1145

objavljeno

0304-3894

Povezanost rada

Kemijsko inženjerstvo

Indeksiranost