Degradation of azo dyes using hydrodynamic cavitation and external oxidants

Publish Year: 1403
نوع سند: مقاله ژورنالی
زبان: English
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JR_AET-10-1_005

تاریخ نمایه سازی: 22 خرداد 1403

Abstract:

Hydrodynamic cavitation (HC) with an orifice as the cavitating device was used to study the degradation of methyl orange dye. The operating parameters of the process, such as pH and inlet pressure, were optimized. The effect of hydroxyl radical promoters like Fenton oxidation and hydrogen peroxide (H۲O۲) on the extent of degradation was also investigated. It has been observed that acidic conditions (pH ۲) favor the degradation of methyl orange. The combined effect of hydrodynamic cavitation with hydrogen peroxide was investigated at the solution’s natural pH and an optimized solution pH ۲. Maximum degradation of ۹۹.۲% was observed at natural pH, whereas complete degradation of methyl orange dye was observed at pH ۲ with ۸ ml/L of hydrogen peroxide addition. The hybrid process of HC/Fenton and HC/H۲O۲ showed the highest efficiency for the degradation of methyl orange with a minimum energy requirement (۰.۱۱ kWh) and operational cost (USD ۰.۰۰۶۲/L).

Authors

Manisha Bagal

Department of Chemical Engineering, Bharati Vidyapeeth College of Engineering, India

Vinayak Rajan

Department of Chemical Engineering, AISSMS College of Engineering, India

Shubham Shinde

Department of Chemical Engineering, AISSMS College of Engineering, India

Barnali Banerjee

Department of Chemical Engineering, AISSMS College of Engineering, India

Vitthal Gole

Department of Chemical Engineering, Madan Mohan Malaviya University of Technology, India

Ashish Mohod

Department of Chemical Engineering, AISSMS College of Engineering, India

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