Degradation of ampicillin antibiotic by electrochemical processes: evaluation of antimicrobial activity of treated water.

Environmental Science and Pollution Research International
Jorge VidalRicardo Salazar

Abstract

Ampicillin (AMP) is an antibiotic widely used in hospitals and veterinary clinics around the world for treating infections caused by bacteria. Therefore, it is common to find traces of this antibiotic in wastewater from these entities. In this work, we studied the mineralization of this antibiotic in solution as well as the elimination of its antimicrobial activity by comparing different electrochemical advanced oxidation processes (EAOPs), namely electro-oxidation with hydrogen peroxide (EO-H2O2), electro-Fenton (EF), and photo electro-Fenton (PEF). With PEF process, a high degradation, mineralization, and complete elimination of antimicrobial activity were achieved in 120-min electrolysis with high efficiency. In the PEF process, fast mineralization rate is caused by hydroxyl radicals (·OH) that are generated in the bulk, on the anode surface, by UV radiation, and most importantly, by the direct photolysis of complexes formed between Fe3+ and some organic intermediates. Moreover, some products and intermediates formed during the degradation of the antibiotic Ampicillin, such as inorganic ions, carboxylic acids, and aromatic compounds, were determined by photometric and chromatographic methods. An oxidation pathway is proposed...Continue Reading

References

Oct 19, 2011·Journal of Hazardous Materials·Jin AnotaiMing-Chun Lu
Apr 7, 2012·Journal of Hazardous Materials·Mark Daniel G de LunaMing-Chun Lu
Apr 2, 2014·Environmental Science and Pollution Research International·Ignasi SirésMarco Panizza
Mar 14, 2016·Journal of Hazardous Materials·Carolina EspinozaRicardo Salazar

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Citations

Dec 20, 2020·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Rechidi Yousef, Chabani Malika

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