Assessment of the Effects of Combined Fe/C Microelectrolysis–Electro-Fenton on the Acrylonitrile Removal from Analogue Wastewater

Abstract:

In the present work, acrylonitrile removal from analogue wastewater was investigated using the combined Fe/C microelectrolysis–electro-Fenton. The optimization parameters such as ratio of Fe/C, pH value, the reaction time, the dose of H₂O₂, the voltage, and the stir time on the acrylonitrile removal efficiency were determined by measuring the percentage removal of Chemical Oxygen Demand (CODcr) in the acrylonitrile analogue wastewater. In the Microelectrolysis section, the ratio of Fe/C was 1:1, the pH value was 3.0, and reaction time was 1h. In the electrolyzing Fenton, the optimal conditions of process parameters were the dose of H₂O₂ oxidant (5ml/L), the voltage (2.0 V), electrochemical reaction time (40min), and stir time (20min).Under the optimal conditions, the percentage removal of was 69% in first section and about 35% in the second section. Also, the dose of oxidant (H₂O₂) decreased from 11ml/L to 5ml/L compared with the using single active carbon method.

• Periodical: Advanced Materials Research (Volumes 610-613)
• Pages: 2323-2327
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.610-613.2323
• Online since: December 2012
• Authors: Ming Zhong Hu, Zhong Hao Shen
• Keywords: Acrylonitrile, COD_Cr, Electro-Fenton Method, Micro-Electrolysis (ME)

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