| Title | Impact of industrial wastewater on the dynamics of antibiotic resistance genes in a full-scale urban wastewater treatment plant |
| Abstract | Urban Wastewater Treatment Plants (UWTPs) treating mixed urban sewage and industrial wastewater are among the major hotspots for the spread of Antibiotic Resistance Genes (ARGs) into the environment. This study addresses the impact of the wastewater origin on ARG dynamics in a full-scale UWTP (15,000 Population Equivalent, PE) by operating the plant with and without industrial wastewater. Composite samples (4 L) from different treatment points were characterized for their chemical composition, bacterial abundance and for the abundance of four resistance genes against tetracycline, sulfonamides, erythromycin, and quinolones (tetA, sul2, ermB, and qnrS), and of the class 1 integrons (intI1). Although the chemical composition of the outflow significantly differed when the plant operated with or without industrial wastewater, the system efficiency in the removal of bacterial cells, ARGs, and intI1 was constant. The final disinfection by peracetic acid (PAA) did not affect the removal of ARGs, independently of the wastewater origin and the chemical characteristics of the inflows. Our results demonstrated that a well-functioning small size UWTP could treat a significant amount of industrial wastewater mixed in the urban sewage without affecting the overall ARGs and class 1 integrons released into the environment. |
| Source | Science of the total environment 646 (1), pp. 1204–1210 |
| Keywords | wastewater |
| Journal | Science of the total environment |
| Editor | Elsevier, Lausanne ;, Paesi Bassi |
| Year | 2019 |
| Type | Articolo in rivista |
| DOI | 10.1016/j.scitotenv.2018.07.370 |
| Authors | Antonino Fiorentino, Andrea Di Cesare, Ester M. Eckert, Luigi Rizzo, Diego Fontaneto, Ying Yang, Gianluca Corno |
| Text | 389762 2019 10.1016/j.scitotenv.2018.07.370 ISI Web of Science WOS WOS 000445164800117 Scopus 2 s2.0 85050776566 wastewater Impact of industrial wastewater on the dynamics of antibiotic resistance genes in a full scale urban wastewater treatment plant Antonino Fiorentino, Andrea Di Cesare, Ester M. Eckert, Luigi Rizzo, Diego Fontaneto, Ying Yang, Gianluca Corno Microbial Ecology Group, National Research Council of Italy, Institute of Ecosystem Study, Largo Tonolli 50, 28922 Verbania, Italy; Department of Civil Engineering, University of Salerno, 84084 Fisciano, SA, Italy; Department of Earth, Environmental and Life Sciences, University of Genoa, Genoa, Italy; South China Sea Resource Exploitation and Protection Collaborative Innovation Center, School of Marine Sciences, Sun Yat sen University, Guangzhou, China Urban Wastewater Treatment Plants UWTPs treating mixed urban sewage and industrial wastewater are among the major hotspots for the spread of Antibiotic Resistance Genes ARGs into the environment. This study addresses the impact of the wastewater origin on ARG dynamics in a full scale UWTP 15,000 Population Equivalent, PE by operating the plant with and without industrial wastewater. Composite samples 4 L from different treatment points were characterized for their chemical composition, bacterial abundance and for the abundance of four resistance genes against tetracycline, sulfonamides, erythromycin, and quinolones tetA, sul2, ermB, and qnrS , and of the class 1 integrons intI1 . Although the chemical composition of the outflow significantly differed when the plant operated with or without industrial wastewater, the system efficiency in the removal of bacterial cells, ARGs, and intI1 was constant. The final disinfection by peracetic acid PAA did not affect the removal of ARGs, independently of the wastewater origin and the chemical characteristics of the inflows. Our results demonstrated that a well functioning small size UWTP could treat a significant amount of industrial wastewater mixed in the urban sewage without affecting the overall ARGs and class 1 integrons released into the environment. 646 Published version https //www.sciencedirect.com/science/article/pii/S0048969718328663 stoten19 1 s2.0 S0048969718328663 main.pdf Articolo in rivista Elsevier 0048 9697 Science of the total environment Science of the total environment Sci. total environ. FIORENTINO ANTONINO gianluca.corno CORNO GIANLUCA diego.fontaneto FONTANETO DIEGO andrea.dicesare DI CESARE ANDREA estermaria.eckert ECKERT ESTER MARIA |
