AI Article Synopsis
- The study highlights that antibiotics in drinking water and wastewater aren't thoroughly researched due to a focus on organic matter and nutrient removal, and because there are no strict environmental regulations in place.
- Batch tests were conducted to assess how certain antibiotics (oxytetracycline, florfenicol, ceftiofur, and penicillin G) affect anaerobic degradation and methanogenic activity in anaerobic sludge.
- The results indicated that ceftiofur does not inhibit methane production, while penicillin G inhibits it at all tested concentrations.
Article Abstract
The presence of antibiotics in drinking water and wastewater has not been widely studied because the sanitary engineering sector mainly focuses on the removal of organic matter and nutrients. There is a lack of environmental regulations for pollutants like antibiotics. Batch tests analyse biodegradability to measure the anaerobic degradation potential of the substrate, or they can be used as toxicity tests. Oxytetracycline, florfenicol (FLO), ceftiofur (CEF) and penicillin G (PEN), commonly used in Colombia for the treatment of livestock diseases, were added in different concentrations to anaerobic sludge contained in serological glass bottles. The production of methane stored in the empty spaces of the bottles was monitored in order to determine the effect of the aforementioned antibiotics on the anaerobic process. It was found that CEF did not have any inhibitory effect on methanogenic activity, while PEN showed inhibition at all concentrations evaluated.
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| http://dx.doi.org/10.2166/wst.2017.127 | DOI Listing |
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