Please use this identifier to cite or link to this item: https://doi.org/10.2166/wst.2013.534
Title: Suitability of ozone pre-treatment for amoxicillin wastewater
Authors: Lefebvre, O. 
Shi, X.
Tein, J.G.
Ng, H.Y.
Keywords: Amoxicillin
Beta-lactam antibiotic
Ozone treatment
Penicillin
Toxicity
Wastewater treatment
Issue Date: 2013
Citation: Lefebvre, O., Shi, X., Tein, J.G., Ng, H.Y. (2013). Suitability of ozone pre-treatment for amoxicillin wastewater. Water Science and Technology 68 (11) : 2492-2496. ScholarBank@NUS Repository. https://doi.org/10.2166/wst.2013.534
Abstract: This study deals with the ozonation of amoxicillin in real pharmaceutical wastewater and its efficacy as a pre-treatment, prior to biological degradation by a mixed culture of bacteria in a sequencing batch reactor (SBR). An ozone utilization of 0.27 g/g-COD (chemical oxygen demand) lowered the pH of the wastewater to 6.6, reduced the specific ultraviolet absorption by 43% and increased the biochemical oxygen demand (BOD) concentration by 37%. The BOD:COD ratio became equal to 0.89, making the ozonated wastewater seemingly suitable for biological treatment; however, when the ozonated effluent was fed to the SBR, the reactor performance degraded, an effect which was attributed to ozonation by-products. In conclusion, ozonation might not be a suitable pre-treatment for pharmaceutical wastewater containing amoxicillin, and biotreatment with properly acclimated biomass may be a better option for treatment of such pharmaceutical wastewater. © IWA Publishing 2013.
Source Title: Water Science and Technology
URI: http://scholarbank.nus.edu.sg/handle/10635/91231
ISSN: 02731223
DOI: 10.2166/wst.2013.534
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