Degradation of azo dyes using hydrodynamic cavitation and external oxidants
Publish place: Advances in Environmental Technology، Vol: 10، Issue: 1
Publish Year: 1403
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
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).
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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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