The Effect of Mass Transfer Rate-Time in Bubbles on Removal of Azoxystrobin in Water by Micro-Sized Jet Array Discharge
In this work, the azoxystrobin removal in water by using a micro-size discharge array was investigated, and the removal efficiency can reach as high as 98.1% after 9 min plasma treatment as well as the energy utilization being only 0.73 g/(kW·h). Based on the relationship between the generation of g...
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MDPI AG
2021-09-01
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| Online Access: | https://www.mdpi.com/2073-4344/11/10/1169 |
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| author | Feng Chen Dezheng Yang Feng Yu Yang Kun Ying Song |
| author_facet | Feng Chen Dezheng Yang Feng Yu Yang Kun Ying Song |
| author_sort | Feng Chen |
| collection | DOAJ |
| description | In this work, the azoxystrobin removal in water by using a micro-size discharge array was investigated, and the removal efficiency can reach as high as 98.1% after 9 min plasma treatment as well as the energy utilization being only 0.73 g/(kW·h). Based on the relationship between the generation of gas bubbles and parameters of gas-liquid discharge, it was found that the variation of applied voltage, gas flow rate and initial solution temperature could cause particle number change, mass transfer rate change and the mass transfer time change, which significantly affected the practical applications at last. The experimental results indicated that when gas flow rate was 0.7 SLM (Standard Liter per Minute) and the initial solution temperature was 297 K with the applied voltage of 8 kV and discharge frequency of 6 kHz, the removal efficiency of azoxystrobin achieved maximum. Based on the analysis results of liquid mass spectrometry, the removal pathways of azoxystrobin were supposed by the decomposed by-products. Toxicity tests indicated that the decomposed products were safe and non-toxic. So, this study may reveal an azoxystrobin degradation mechanism and provide a safe, reliable and effective way for azoxystrobin degradation. |
| first_indexed | 2024-03-10T06:40:19Z |
| format | Article |
| id | doaj.art-3defab6f89a04aea83f0a7eae59b5e46 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-10T06:40:19Z |
| publishDate | 2021-09-01 |
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| spelling | doaj.art-3defab6f89a04aea83f0a7eae59b5e462023-11-22T17:43:16ZengMDPI AGCatalysts2073-43442021-09-011110116910.3390/catal11101169The Effect of Mass Transfer Rate-Time in Bubbles on Removal of Azoxystrobin in Water by Micro-Sized Jet Array DischargeFeng Chen0Dezheng Yang1Feng Yu2Yang Kun3Ying Song4Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, ChinaKey Lab of Materials Modification, Ministry of Education, Dalian University of Technology, Dalian 116024, ChinaKey Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, ChinaKey Laboratory of Ecophysics, College of Sciences, Shihezi University, Shihezi 832003, ChinaKey Lab of Materials Modification, Ministry of Education, Dalian University of Technology, Dalian 116024, ChinaIn this work, the azoxystrobin removal in water by using a micro-size discharge array was investigated, and the removal efficiency can reach as high as 98.1% after 9 min plasma treatment as well as the energy utilization being only 0.73 g/(kW·h). Based on the relationship between the generation of gas bubbles and parameters of gas-liquid discharge, it was found that the variation of applied voltage, gas flow rate and initial solution temperature could cause particle number change, mass transfer rate change and the mass transfer time change, which significantly affected the practical applications at last. The experimental results indicated that when gas flow rate was 0.7 SLM (Standard Liter per Minute) and the initial solution temperature was 297 K with the applied voltage of 8 kV and discharge frequency of 6 kHz, the removal efficiency of azoxystrobin achieved maximum. Based on the analysis results of liquid mass spectrometry, the removal pathways of azoxystrobin were supposed by the decomposed by-products. Toxicity tests indicated that the decomposed products were safe and non-toxic. So, this study may reveal an azoxystrobin degradation mechanism and provide a safe, reliable and effective way for azoxystrobin degradation.https://www.mdpi.com/2073-4344/11/10/1169non-thermal plasmaazoxystrobinmicro-discharge array reactormass transferdegradation |
| spellingShingle | Feng Chen Dezheng Yang Feng Yu Yang Kun Ying Song The Effect of Mass Transfer Rate-Time in Bubbles on Removal of Azoxystrobin in Water by Micro-Sized Jet Array Discharge Catalysts non-thermal plasma azoxystrobin micro-discharge array reactor mass transfer degradation |
| title | The Effect of Mass Transfer Rate-Time in Bubbles on Removal of Azoxystrobin in Water by Micro-Sized Jet Array Discharge |
| title_full | The Effect of Mass Transfer Rate-Time in Bubbles on Removal of Azoxystrobin in Water by Micro-Sized Jet Array Discharge |
| title_fullStr | The Effect of Mass Transfer Rate-Time in Bubbles on Removal of Azoxystrobin in Water by Micro-Sized Jet Array Discharge |
| title_full_unstemmed | The Effect of Mass Transfer Rate-Time in Bubbles on Removal of Azoxystrobin in Water by Micro-Sized Jet Array Discharge |
| title_short | The Effect of Mass Transfer Rate-Time in Bubbles on Removal of Azoxystrobin in Water by Micro-Sized Jet Array Discharge |
| title_sort | effect of mass transfer rate time in bubbles on removal of azoxystrobin in water by micro sized jet array discharge |
| topic | non-thermal plasma azoxystrobin micro-discharge array reactor mass transfer degradation |
| url | https://www.mdpi.com/2073-4344/11/10/1169 |
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