Electrocatalytic Degradation of Levofloxacin, a Typical Antibiotic in Hospital Wastewater

Presently, in the context of the novel coronavirus pneumonia epidemic, several antibiotics are overused in hospitals, causing heavy pressure on the hospital’s wastewater treatment process. Therefore, developing stable, safe, and efficient hospital wastewater treatment equipment is crucial. Herein, a...

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Autores principales:	Hongxia Lv, Peiwei Han, Xiaogang Li, Zhao Mu, Yuan Zuo, Xu Wang, Yannan Tan, Guangxiang He, Haibo Jin, Chenglin Sun, Huangzhao Wei, Lei Ma
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	titanium suboxide electrode levofloxacin response surface methodology (RSM) degradation mechanisms and pathways Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/871cd2d3679c41a39f4c342bc0007e85
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spelling	oai:doaj.org-article:871cd2d3679c41a39f4c342bc0007e852021-11-25T18:13:49ZElectrocatalytic Degradation of Levofloxacin, a Typical Antibiotic in Hospital Wastewater10.3390/ma142268141996-1944https://doaj.org/article/871cd2d3679c41a39f4c342bc0007e852021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/6814https://doaj.org/toc/1996-1944Presently, in the context of the novel coronavirus pneumonia epidemic, several antibiotics are overused in hospitals, causing heavy pressure on the hospital’s wastewater treatment process. Therefore, developing stable, safe, and efficient hospital wastewater treatment equipment is crucial. Herein, a bench-scale electrooxidation equipment for hospital wastewater was used to evaluate the removal effect of the main antibiotic levofloxacin (LVX) in hospital wastewater using response surface methodology (RSM). During the degradation process, the influence of the following five factors on total organic carbon (TOC) removal was discussed and the best reaction condition was obtained: current density, initial pH, flow rate, chloride ion concentration, and reaction time of 39.6 A/m<sup>2</sup>, 6.5, 50 mL/min, 4‰, and 120 min, respectively. The TOC removal could reach 41% after a reaction time of 120 min, which was consistent with the result predicted by the response surface (40.48%). Moreover, the morphology and properties of the electrode were analyzed. The degradation pathway of LVX was analyzed using high-performance liquid chromatography–mass spectrometry (LC–MS). Subsequently, the bench-scale electrooxidation equipment was changed into onboard-scale electrooxidation equipment, and the onboard-scale equipment was promoted to several hospitals in Dalian.Hongxia LvPeiwei HanXiaogang LiZhao MuYuan ZuoXu WangYannan TanGuangxiang HeHaibo JinChenglin SunHuangzhao WeiLei MaMDPI AGarticletitanium suboxide electrodelevofloxacinresponse surface methodology (RSM)degradation mechanisms and pathwaysTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6814, p 6814 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	titanium suboxide electrode levofloxacin response surface methodology (RSM) degradation mechanisms and pathways Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	titanium suboxide electrode levofloxacin response surface methodology (RSM) degradation mechanisms and pathways Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Hongxia Lv Peiwei Han Xiaogang Li Zhao Mu Yuan Zuo Xu Wang Yannan Tan Guangxiang He Haibo Jin Chenglin Sun Huangzhao Wei Lei Ma Electrocatalytic Degradation of Levofloxacin, a Typical Antibiotic in Hospital Wastewater
description	Presently, in the context of the novel coronavirus pneumonia epidemic, several antibiotics are overused in hospitals, causing heavy pressure on the hospital’s wastewater treatment process. Therefore, developing stable, safe, and efficient hospital wastewater treatment equipment is crucial. Herein, a bench-scale electrooxidation equipment for hospital wastewater was used to evaluate the removal effect of the main antibiotic levofloxacin (LVX) in hospital wastewater using response surface methodology (RSM). During the degradation process, the influence of the following five factors on total organic carbon (TOC) removal was discussed and the best reaction condition was obtained: current density, initial pH, flow rate, chloride ion concentration, and reaction time of 39.6 A/m<sup>2</sup>, 6.5, 50 mL/min, 4‰, and 120 min, respectively. The TOC removal could reach 41% after a reaction time of 120 min, which was consistent with the result predicted by the response surface (40.48%). Moreover, the morphology and properties of the electrode were analyzed. The degradation pathway of LVX was analyzed using high-performance liquid chromatography–mass spectrometry (LC–MS). Subsequently, the bench-scale electrooxidation equipment was changed into onboard-scale electrooxidation equipment, and the onboard-scale equipment was promoted to several hospitals in Dalian.
format	article
author	Hongxia Lv Peiwei Han Xiaogang Li Zhao Mu Yuan Zuo Xu Wang Yannan Tan Guangxiang He Haibo Jin Chenglin Sun Huangzhao Wei Lei Ma
author_facet	Hongxia Lv Peiwei Han Xiaogang Li Zhao Mu Yuan Zuo Xu Wang Yannan Tan Guangxiang He Haibo Jin Chenglin Sun Huangzhao Wei Lei Ma
author_sort	Hongxia Lv
title	Electrocatalytic Degradation of Levofloxacin, a Typical Antibiotic in Hospital Wastewater
title_short	Electrocatalytic Degradation of Levofloxacin, a Typical Antibiotic in Hospital Wastewater
title_full	Electrocatalytic Degradation of Levofloxacin, a Typical Antibiotic in Hospital Wastewater
title_fullStr	Electrocatalytic Degradation of Levofloxacin, a Typical Antibiotic in Hospital Wastewater
title_full_unstemmed	Electrocatalytic Degradation of Levofloxacin, a Typical Antibiotic in Hospital Wastewater
title_sort	electrocatalytic degradation of levofloxacin, a typical antibiotic in hospital wastewater
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/871cd2d3679c41a39f4c342bc0007e85
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Electrocatalytic Degradation of Levofloxacin, a Typical Antibiotic in Hospital Wastewater

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