Occurrence and fate of typical antibiotics in wastewater treatment plants in Harbin, North-east China
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As a new pollutant, antibiotics in the environment and their removal in wastewater treatment plants (WWTPs) have gained considerable attention. However, few studies investigated antibiotics in the north-eastern areas of China. By employing high-performance liquid chromatography-tandem mass spectrometry, the concentration distribution and removal of 12 antibiotics belonging to four types (cephalosporins, sulfonamides, fluoroquinolones, and macrolides) were investigated in influents and effluents as well as the removal efficiencies of four typical treatment processes in 18 wastewater treatment plants of Harbin City, north-eastern China. Macrolides and fluoroquinolones presented relatively higher detection concentrations and rates both in the water and in the sludge phases. Sulfonamides and cephalosporins displayed higher detection concentrations in the water phase. The representative antibiotics in influents and effluents included ROX, NOR, OFL, SMX, AZI, and CLA, with detection rates above 95%. The detection rates of the other six antibiotics exceeded 30%. In the sludge, the other five antibiotics, except SMX, presented relatively higher detection concentrations and rates, with detection rates greater than 95%. For cephalosporin, the detection rates of CTX and CFM in the sludge were 0. The removal efficiencies for the 12 antibiotics differed greatly, with average values ranging from 30% to 80% and the highest values for cephalosporin. The removal of antibiotics did not differ significantly among the four different treatment processes.
KeywordsAntibiotics WWTPs Occurrence Removal efficiency
This work was supported by the National Natural Science Foundation of China (No. 31870471) and Heilongjiang Natural Science Foundation (No. C2017003).
- Ashfaq M, Li Y, Wang Y W, Chen W J, Wang H, Chen X Q, Wu W, Huang Z Y, Yu C P, Sun Q (2017). Occurrence, fate, and mass balance of different classes of pharmaceuticals and personal care products in an anaerobic-anoxic-oxic wastewater treatment plant in Xiamen, China. Water Research, 123: 655–667CrossRefGoogle Scholar
- Feitosa-Felizzola J, Temime B, Chiron S (2007). Evaluating on-line solid-phase extraction coupled to liquid chromatography-ion trap mass spectrometry for reliable quantification and confirmation of several classes of antibiotics in urban wastewaters. Journal of Chromatography. A, 1164(1–2): 95–104CrossRefGoogle Scholar
- Guo X Y, Wang N, Jing X U, Jiao S J, Wang Z C, Shan Z J, Tang W G (2014). Research progress on environmental exposure levels and environmental fate of veterinary antibiotics. Environmental Science & Technology, 37(9): 76–86Google Scholar
- Igbinosa I H, Okoh A I (2012). Antibiotic susceptibility profile of Aeromonas species isolated from wastewater treatment plant. The Scientific World Journal, 2012: 1–6Google Scholar
- Timraz K, Xiong Y, Al Qarni H, Hong P Y (2017). Removal of bacterial cells, antibiotic resistance genes and integrase genes by on-site hospital wastewater treatment plants: Surveillance of treated hospital effluent quality. Environmental Science. Water Research & Technology, 3(2): 293–303CrossRefGoogle Scholar
- Wang W H, Zhang W F, Liang H, Gao D W (2018). Seasonal distribution characteristics and health risk assessment of typical antibiotics in the Harbin section of the Songhua River basin. Environmental TechnologyGoogle Scholar