Author: Celalettin ÖZDEMİR, Muhammed Kamil ODEN

Publishing Date: 2011

ISSN: 1300-5200

E-ISSN: 1304-8708

Volume: 26 Issue: 2

ABSTRACT:

In the present study, the decolorization of C.I. Reactive Orange 127 (RO 127) and C.I.Reactive Yellow 145 (RY 145) by modified-Fenton process (Fe⁰/H₂O₂) was investigated. The experiments were carried out to determine the process’s optimal operational conditions: pH, Fe⁰and H₂O₂concentrations. This study shows that modified Fenton process is an efficient process for the decolorization of synthetic textile wastewater including azo dye and polyvynil alcohol (PVA). The optimal conditions experimentally determined was found to be initial pH = 3.5, [H₂O₂] = 20 mg/L, [Fe⁰]= 80 mg/L for RO 127 and pH = 4.0, [H₂O₂] = 20 mg/L, [Fe⁰] = 60 mg/L for RY 145. Under the optimal conditions, 92% and 80% decolorization were achieved after 60 min of reaction for RO 127 and RY 145, respectively.

Key Words: Decolorization; Fenton’s process; iron powder; RY 145; RO 127.

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