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Technique: effect of recycling ros on dye degradation


Affiliations
1 School of Civil and Chemical Engineering, VIT University, Vellore, Tamil Nadu-632014, India
2 Dept. of Civil Engineering, Indian Institute of Technology, Madras, Chennai, Tamil Nadu-600036, India
3 Dept. of Electrical Engineering, Indian Institute of Technology, Madras, Chennai, Tamil Nadu-600036, India
     

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The objective of the present study is to be adapt pulse power technique for water treatment where an attempt has been made for recycling of the Reactive Oxygen Species (ROS) present in gaseous phase to aqueous phase and further to improve the pollutant degradation. Methylene blue (MB) was used as a model pollutant and its degradation was compared by recycling and non-recycling of ROS in the reactor. The study showed better degradation of pollutants (MB) while recycling the ROS as compared to the non-recycling condition. To support the results the different ROS such as hydrogen peroxide, Ozone and hydroxyl radicals were quantified in both conditions. We observed that the concentration of ROS present in the aqueous solution was higher in recycling conditions as compared to that of non recycled condition.

Keywords

ROS, corona discharge, methylene blue, recycling, non-recycling
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  • Technique: effect of recycling ros on dye degradation

Abstract Views: 178  |  PDF Views: 0

Authors

Vineeth Pothanamkandathil
School of Civil and Chemical Engineering, VIT University, Vellore, Tamil Nadu-632014, India
Raj Kamal Singh
Dept. of Civil Engineering, Indian Institute of Technology, Madras, Chennai, Tamil Nadu-600036, India
Ligy Philip
Dept. of Civil Engineering, Indian Institute of Technology, Madras, Chennai, Tamil Nadu-600036, India
Sarathi
Dept. of Electrical Engineering, Indian Institute of Technology, Madras, Chennai, Tamil Nadu-600036, India

Abstract


The objective of the present study is to be adapt pulse power technique for water treatment where an attempt has been made for recycling of the Reactive Oxygen Species (ROS) present in gaseous phase to aqueous phase and further to improve the pollutant degradation. Methylene blue (MB) was used as a model pollutant and its degradation was compared by recycling and non-recycling of ROS in the reactor. The study showed better degradation of pollutants (MB) while recycling the ROS as compared to the non-recycling condition. To support the results the different ROS such as hydrogen peroxide, Ozone and hydroxyl radicals were quantified in both conditions. We observed that the concentration of ROS present in the aqueous solution was higher in recycling conditions as compared to that of non recycled condition.

Keywords


ROS, corona discharge, methylene blue, recycling, non-recycling



DOI: https://doi.org/10.33686/prj.v13i1.189271