Degradation of the antibiotics amoxicillin, ampicillin and cloxacillin in aqueous solution by the photo-Fenton process

Elmolla, E.S. and Chaudhuri, M. (2009) Degradation of the antibiotics amoxicillin, ampicillin and cloxacillin in aqueous solution by the photo-Fenton process. Journal of Hazardous Materials, 172 (2-3). pp. 1476-1481. ISSN 03043894

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Abstract

The study examined degradation of the antibiotics amoxicillin, ampicillin and cloxacillin in aqueous solution by the photo-Fenton process. The optimum operating conditions for treatment of an aqueous solution containing 104, 105 and 103 mg/L amoxicillin, ampicillin, and cloxacillin, respectively was observed to be H2O2/COD molar ratio 1.5, H2O2/Fe2+ molar ratio 20 and pH 3. Under optimum operating conditions, complete degradation of amoxicillin, ampicillin and cloxacillin occurred in 2 min. Biodegradability (BOD5/COD ratio) improved from � 0 to 0.4, and COD and DOC degradation were 80.8 and 58.4, respectively in 50 min. Photo-Fenton treatment resulted in the release and mineralization of organic carbon and nitrogen in the antibiotic molecule. Increase in ammonia and nitrate concentration, and DOC degradation were observed as a result of organic carbon and nitrogen mineralization. DOC degradation increased to 58.4 and ammonia increased from 8 to 13.5 mg/L, and nitrate increased from 0.3 to 14.2 mg/L in 50 min. © 2009 Elsevier B.V. All rights reserved.

Item Type: Article
Additional Information: cited By 190
Uncontrolled Keywords: Amoxicillin; Aqueous solutions; Molar ratio; Nitrate concentration; Optimum operating conditions; Photo-Fenton; Photo-Fenton process, Ammonia; Antibiotics; Biodegradation; Degradation; Mineralogy; Organic carbon, Wastewater treatment, ammonia; amoxicillin; ampicillin; cloxacillin; hydrogen peroxide; nitrate; nitrogen; organic carbon, ammonia; antibiotics; aqueous solution; chemical oxygen demand; concentration (composition); dissolved organic carbon; mineralization; nitrate; nitrogen; optimization; photodegradation; water treatment, aqueous solution; article; biochemical oxygen demand; biodegradability; carbon mineralization; chemical oxygen demand; controlled study; degradation kinetics; drug structure; Fenton reaction; nitrogen mineralization; photodegradation; process optimization; structure analysis, Amoxicillin; Ampicillin; Anti-Bacterial Agents; Biodegradation, Environmental; Carbon; Cloxacillin; Environmental Remediation; Hydrogen Peroxide; Iron; Nitrogen; Photochemical Processes; Solutions; Ultraviolet Rays; Water Pollutants, Chemical; Water Purification
Depositing User: Mr Ahmad Suhairi UTP
Date Deposited: 09 Nov 2023 15:48
Last Modified: 09 Nov 2023 15:48
URI: https://khub.utp.edu.my/scholars/id/eprint/516

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