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An Experimental Study on Treatment of Printing and Dyeing Wastewater with Fenton Oxidation Technology

Zheng Ding-cheng

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Abstract

Fenton reagent is used for treating the simulated printing and dyeing wastewater composed of disperse red E-4B and reactive blue KN-R.The effects of the H2O2and Fe2+ concentration,pH and the reaction time on the removal rate are studied.When the dosages of H2O2 and FeSO4·7H2O are respectively at 5.0ml/L and 1.1g/L,with pH at 3,after 25-minute reaction and 5-minute standing time,for the original wastewater with COD at 700mg/L and chrominance of 1200 times,the COD removal rate could be up to 95% and the decolorizing rate could be up to 97%.The results show that the Fenton reagent is quite effective in treating the wastewater.

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What this paper is about

Fenton reagent is used for treating the simulated printing and dyeing wastewater composed of disperse red E-4B and reactive blue KN-R.The effects of the H2O2and Fe2+ concentration,pH and the reaction time on the removal rate are studied.When the dosages of H2O2 and FeSO4·7H2O are respectively at 5.0ml/L and 1.1g/L,with pH at 3,after 25-minute reaction and 5-minute standing time,for the original wastewater with COD at 700mg/L and chrominance of 1200 times,the COD removal rate could be up to 95% and the decolorizing rate could be up to 97%.The results show that the Fenton reagent is quite effective in treating the wastewater.

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Available abstract

Fenton reagent is used for treating the simulated printing and dyeing wastewater composed of disperse red E-4B and reactive blue KN-R.The effects of the H2O2and Fe2+ concentration,pH and the reaction time on the removal rate are studied.When the dosages of H2O2 and FeSO4·7H2O are respectively at 5.0ml/L and 1.1g/L,with pH at 3,after 25-minute reaction and 5-minute standing time,for the original wastewater with COD at 700mg/L and chrominance of 1200 times,the COD removal rate could be up to 95% and the decolorizing rate could be up to 97%.The results show that the Fenton reagent is quite effective in treating the wastewater.

Key concepts: Wastewater, Reagent, Chrominance, Chemistry, Dyeing, Pulp and paper industry, Nuclear chemistry, Environmental science

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An Experimental Study on Treatment of Printing and Dyeing Wastewater with Fenton Oxidation Technology — Research Paper | ScholarLens