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2001•Journal of Chemical Engineering of Chinese UniversitiesRequires access

Treatment of Dyeing Wastewater by Photo-assisted Fenton System

Yueping Yang

Open publisher page 1 citations

Abstract

The effects of reaction conditions on the industry dyeing wastewater treatment efficiency were studied. Parameters such as the dosage of Fe2+ or H2O2, proportion of Fe2+ and H2O2 were investigated in terms of chemical oxygen demand (CODcr) and color removal rate. Experimental results showed that UV/H2O2/Fe2+ process was effective for treatment of the dyeing wastewater, up to 95.8% color and 72.7% CODcr was removed after 60 minutes reaction with 1Qth H2O2 addition and Fe2+: H2O2ratio 1:20. Furthermore, the reaction kinetics for photoassisted Fenton processes was investigated. Kinetic models were proposed for the treatment of dyeing wastewater. The prediction of models agrees well with the experimental results, thus confirming the proposed reaction mechanisms.

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What this paper is about

The effects of reaction conditions on the industry dyeing wastewater treatment efficiency were studied. Parameters such as the dosage of Fe2+ or H2O2, proportion of Fe2+ and H2O2 were investigated in terms of chemical oxygen demand (CODcr) and color removal rate. Experimental results showed that UV/H2O2/Fe2+ process was effective for treatment of the dyeing wastewater, up to 95.8% color and 72.7% CODcr was removed after 60 minutes reaction with 1Qth H2O2 addition and Fe2+: H2O2ratio 1:20. Furthermore, the reaction kinetics for photoassisted Fenton processes was investigated. Kinetic models were proposed for the treatment of dyeing wastewater. The prediction of models agrees well with the experimental results, thus confirming the proposed reaction mechanisms.

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Available abstract

The effects of reaction conditions on the industry dyeing wastewater treatment efficiency were studied. Parameters such as the dosage of Fe2+ or H2O2, proportion of Fe2+ and H2O2 were investigated in terms of chemical oxygen demand (CODcr) and color removal rate. Experimental results showed that UV/H2O2/Fe2+ process was effective for treatment of the dyeing wastewater, up to 95.8% color and 72.7% CODcr was removed after 60 minutes reaction with 1Qth H2O2 addition and Fe2+: H2O2ratio 1:20. Furthermore, the reaction kinetics for photoassisted Fenton processes was investigated. Kinetic models were proposed for the treatment of dyeing wastewater. The prediction of models agrees well with the experimental results, thus confirming the proposed reaction mechanisms.

Key concepts: Dyeing, Wastewater, Chemical oxygen demand, Pulp and paper industry, Kinetics, Chemistry, Degradation (telecommunications), Chemical kinetics

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