Preliminary studies on temporal variations of antibiotics in sewage treatment plants in south india

Reddy, Praveen Kumar Y and Balakrishna, K and Uegaki, Ryuichi and Akiba, Masato and Guruge, Keerthi S (2018) Preliminary studies on temporal variations of antibiotics in sewage treatment plants in south india. In: Dioxin 2018, 26/08/2018, Krakow.

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Abstract

Pharmaceutical compounds are referred as an emerging contaminant in water and is detected in various water bodies all over the world [1]. The concentrations of the pharmaceuticals can vary from different areas and countries depending on the usage pattern [2]. The contamination of pharmaceuticals in aquatic environment is due to its large consumption in daily life and their ultimate release from urine and feces to the waste water. These pharmaceuticals after the intake by humans and animals are converted into metabolites and excreted as unchanged. Disposal of unused drugs into water sinks and household wastes are another major contributors to pharmaceuticals in wastewater and landfill leachate [3]. The passage of these pollutants is mainly through the sewage network to wastewater treatment plants (WTPs) and reaches to the surface water. Wastewater treatment plants play a major role in collecting and treating wastewater received from hospitals, households, and industries [4]. The removal efficiency in a WTP can be influenced by the mode of treatment and compound specific properties [5]. However, there is no specifically designed unit for the removal of pharmaceuticals as yet. The concentrations of the pharmaceuticals can vary from region to region and countries. Consequently, antibiotic resistance is spreading extensively because of the high usage of antimicrobial agents. In Indian environment, the WTPs receive antibiotic resistant bacteria directly from the hospitals and discharged to the surface waters or for irrigation [6]. Only 31% of the wastewater generated is treated in India [7]. The present study has carried out to study the occurrence of four selected antibiotics in five sewage treatment plants in South India and to investigate the magnitude of hourly and daily fluctuations of the selected compounds. The selected antibiotics are sulfamethoxazole (SMX), erythromycin (ERY), ofloxacin (OFX), norfloxacin (NOR). A total of 90 samples is collected in five sewage treatment plants (STPs) in three alternative days in a week.

Item Type: Conference or Workshop Item (Paper)
Subjects: Engineering > MIT Manipal > Civil Engineering
Depositing User: MIT Library
Date Deposited: 15 Jan 2019 08:54
Last Modified: 15 Jan 2019 08:54
URI: http://eprints.manipal.edu/id/eprint/152969

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