Scholarly record
THE DEGRADATION OF REACTIVE BLACK 5 BY FENTON PROCESSS USING RAW IRON PYRITE ORE
Abstract
This study examined the decolorization of one of the most commonly used reactive dye by using the Fenton-like process [Iron pyrite/ H2O2]. Raw iron pyrite ore contains 28,68 \% Fe. Oxidation experiments were run in 500 mL-glass beakers that were continuously stirred for up to 180 min at a constant rate of 200 rpm, after initiation of the Fenton process. A series of experiments were carried out at various concentration of hydrogen peroxide and raw iron pyrite ore while the pH value was kept constant at 3 in order to determine the optimum conditions of these. From 50 mg/L to 750 mg/L of raw iron pyrite ore and 5 to 75 mg/L dosage of H2O2 were applied for the determination of operational conditions. The decolorization of RB 5 was measured with UV-Vis spectrophotometer. Manganese oxide (MnO2) was used for quenching H2O2 to prevent any interference after sampling. It was found that optimum dosages of H2O2 and raw iron pyrite ore were 37,5 mg/L and 300 mg/L, respectively. At the optimum conditions color removal was 92,8 \%. The experiments indicate that RB 5 can be effectively decolorized textile effluent by Fenton like process which uses pyrite as the iron source.
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References10
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