Experimental Research on the Treatment of Printing and Dyeing Wastewater Using Ultrasound Combined with Fenton Reagent

Abstract:

Experimental research on the treatment of printing and dyeing wastewater has been carried out. The method of ultrasonic combined Fenton has been used.Separately by using ultrasonic and Fenton oxidation method to treat printing and dyeing wastewater, the hydrogen peroxide dosage, FeSO₄•7H₂O dosage, shaking time, pH value, ultrasonic time, ultrasonic power and other factors are investigated.The COD and chromaticity removal effect of printing and dyeing wastewater are calculated. The experimental results show that the above factors have a certain impact on the treatment effect. Based on these results, the orthogonal test method is used in this experiment, the optimal conditions of ultrasound combined with Fenton reagent for dealing printing and dyeing wastewater has been determined.The orthogonal experimental results show that the optimal reaction conditions of orthogonal test are below:pH value is 3, the best time for the experiment is 1.5h, hydrogen peroxide dosage is 5mL, seven water ferrous sulfate dosage is 0.7grams, ultrasonic power is 142.5W. Experiments are conducted in accordance with the best reaction conditions. On the optimal process conditions, the removal rate of COD reaches 94.6% and the chroma removal rate reaches 87.5%. The effect of using ultrasonic combined with Fenton reagent to treat printing and dyeing wastewater is better than the use of single method.

• Periodical: Applied Mechanics and Materials (Volumes 713-715)
• Pages: 2703-2705
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.713-715.2703
• Online since: January 2015
• Authors: Ying Gang Wang*, Lin Lin, Teng Fei Liu, Jin Meng Zhang
• Keywords: Dyeing Wastewater, Fenton, Printing, Treatment, Ultrasonic

References

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DOI: 10.1007/s00343-009-9187-y