Contamination of Antibiotics in Effluent from Municipal Wastewater Treatment Plant

Authors

  • Numfon Eaktasang Faculty of Public Health, Thammasat University
  • Yanasinee Suma
  • Jarupon Mahiphot

Abstract

The aim of this research was to investigate the contamination of antibiotics in municipal wastewater treatment plant (Activated sludge). It detected 11 of 15 antibiotics in influent (including Amoxicillin, Ampicillin, Ciprofloxacin, Levofloxacin, Norfloxacin, Ofloxacin, Doxycycline, Sulfamethoxazole, Lincomycin, Clarithomycin and Trimethoprim) and 8 of 15 antibiotics in effluent (including Amoxicillin, Ampicillin, Ciprofloxacin, Levofloxacin, Norfloxacin, Ofloxacin, Doxycycline and Trimethoprim). Amoxicillin, Ofloxacin and Sulfamethoxazole appeared the highest concentrations of 6,405.71, 3,106.78 and 833.41 ng/L, respectively in the influent. Otherwise, Amoxicillin, Ofloxacin, Levofloxacin appeared the highest concentrations of 4,663.49, 1,546.19, 322.58 ng/L, respectively in the effluent. The results of this study confirmed that Sulfamethoxazole, Lincomycin and Clarithomycin were removed at a high rate (100% efficiency) and followed by Trimethoprim and Ciprofloxacin of 78.49% and 62.43%, respectively. In contrast, lowest removal efficiency of Norfloxacin was quite poor (8.49%). The results obtained from this study could be useful to development of wastewater treatment plant to reduce the antibiotics contamination before discharge to the environment. Keywords :  antibiotic ; municipal wastewater ; activated sludge

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Published

2021-09-06