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Dyeing Wastewater Treatment by Combination of Ultrasonic with Fenton Oxidation

Qisheng Zhang

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Abstract

The combination of Ultrasonic with Fenton oxidation is used to treat dyeing wastewater and compared with the two methods alone for wastewater treatment.The effects of the initial pH value,Fe2+ and H2O2 dosage,and the reaction time on dyeing wastewater treatment are investigated.The results show that,for the dyeing wastewater with CODCr concentration of 1 000 mg/L,when the initial pH is 4,Fe2+ dosage is 0.02 mol/L,H2O2 dosage is 0.18 mol/L,and the reaction time is 6 min,the CODCr removal rate can reach the highest value 61.05%.

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What this paper is about

The combination of Ultrasonic with Fenton oxidation is used to treat dyeing wastewater and compared with the two methods alone for wastewater treatment.The effects of the initial pH value,Fe2+ and H2O2 dosage,and the reaction time on dyeing wastewater treatment are investigated.The results show that,for the dyeing wastewater with CODCr concentration of 1 000 mg/L,when the initial pH is 4,Fe2+ dosage is 0.02 mol/L,H2O2 dosage is 0.18 mol/L,and the reaction time is 6 min,the CODCr removal rate can reach the highest value 61.05%.

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Available abstract

The combination of Ultrasonic with Fenton oxidation is used to treat dyeing wastewater and compared with the two methods alone for wastewater treatment.The effects of the initial pH value,Fe2+ and H2O2 dosage,and the reaction time on dyeing wastewater treatment are investigated.The results show that,for the dyeing wastewater with CODCr concentration of 1 000 mg/L,when the initial pH is 4,Fe2+ dosage is 0.02 mol/L,H2O2 dosage is 0.18 mol/L,and the reaction time is 6 min,the CODCr removal rate can reach the highest value 61.05%.

Key concepts: Wastewater, Dyeing, Pulp and paper industry, Chemistry, Sewage treatment, Nuclear chemistry, Environmental engineering, Environmental science

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