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UV photolysis as an efficient pretreatment method for antibiotics decomposition and their antibacterial activity elimination
Ding, Yangcheng; Jiang, Wenli; Liang, Bin; Han, Jinglong; Cheng, Haoyi; Haider, Muhammad Rizwan; Wang, Hongcheng; Liu, Wenzong; Liu, Shuangjiang; Wang, Aijie
2020-06-15
Source PublicationJOURNAL OF HAZARDOUS MATERIALS
ISSN0304-3894
Volume392Pages:1-11
AbstractThe biological treatment of antibiotic-containing wastewater is a mainstream process, but the antibacterial activity from the persistence of antibiotics would inhibit the biological activity and function of wastewater treatment plants and lead to the risk of transmission of antibiotic resistant bacteria and genes. In this study, UV photolysis was selected as an appropriate pretreatment technology for antibiotic-containing wastewater. It could decompose many kinds of antibiotics and was not inhibited by the coexisting organics in wastewater. The antibacterial activities of five kinds of antibiotics, which were eliminated with UV irradiation, exhibited a significantly positive correlation with their parent compound concentrations. The photodecomposition of the main functional groups in antibiotics contributed to the elimination of antibacterial activity. Defluorination was the main pathway to eliminate the antibacterial activity of antibiotics containing a fluorine substituent (e.g., florfenicol and ofloxacin), while the photoinduced opening of the beta-lactam ring was the most efficient route to eliminate the antibacterial activity of beta-lactam antibiotics (e.g. cefalexin, amoxicillin and ampicillin). These results demonstrated that UV photolysis could be adopted as an efficient and promising pretreatment strategy for the source control of antibiotic antibacterial activity by the decomposition of antibiotic functional groups before the biological treatment unit.
Department中国科学院环境生物技术重点实验室
KeywordAntibiotics decomposition Antibacterial activity elimination UV photolysis Pretreatment Degradation pathways
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/45221
Collection中国科学院环境生物技术重点实验室
Recommended Citation
GB/T 7714
Ding, Yangcheng,Jiang, Wenli,Liang, Bin,et al. UV photolysis as an efficient pretreatment method for antibiotics decomposition and their antibacterial activity elimination[J]. JOURNAL OF HAZARDOUS MATERIALS,2020,392:1-11.
APA Ding, Yangcheng.,Jiang, Wenli.,Liang, Bin.,Han, Jinglong.,Cheng, Haoyi.,...&Wang, Aijie.(2020).UV photolysis as an efficient pretreatment method for antibiotics decomposition and their antibacterial activity elimination.JOURNAL OF HAZARDOUS MATERIALS,392,1-11.
MLA Ding, Yangcheng,et al."UV photolysis as an efficient pretreatment method for antibiotics decomposition and their antibacterial activity elimination".JOURNAL OF HAZARDOUS MATERIALS 392(2020):1-11.
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