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Abstract <p>The presence of fluoroquinolone antibiotics in aquatic environments raises serious ecological concerns due to their toxicity and ability to promote antibiotic resistance development. This study investigates a combined approach to water purification that integrates hydrodynamic cavitation with plasma discharge for the degradation of enrofloxacin in aqueous solutions. The influence of electrical pulse power (1.5 and 3.0 kW) and the number of treatment cycles (1–2) was evaluated at initial antibiotic concentrations of 10 and 100&#xa0;mg/L. At lower power during two treatment cycles, the degree of antibiotic degradation has reached 69.2%. Additionally, a prolonged effect of the treatment was identified, caused by the oxidation of intermediate decomposition products by reactive oxygen species generated within the system. The most pronounced effect has been observed at an enrofloxacin concentration of 10 mg/L. The obtained results confirm the high efficiency and practical potential of this hybrid technology for the removal of antibiotics from water treatment systems.</p>

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Degradation of Enrofloxacin in Aqueous Solutions at Hybrid Cavitation–Plasma Treatment

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • T. D. Ksenofontova,
  • E. S. Mikhalev,
  • R. V. Nikonov,
  • I. S. Fedulov,
  • A. A. Arkhipenko,
  • M. S. Doronina,
  • V. B. Baranovskaya,
  • A. V. Kamler

摘要

Abstract

The presence of fluoroquinolone antibiotics in aquatic environments raises serious ecological concerns due to their toxicity and ability to promote antibiotic resistance development. This study investigates a combined approach to water purification that integrates hydrodynamic cavitation with plasma discharge for the degradation of enrofloxacin in aqueous solutions. The influence of electrical pulse power (1.5 and 3.0 kW) and the number of treatment cycles (1–2) was evaluated at initial antibiotic concentrations of 10 and 100 mg/L. At lower power during two treatment cycles, the degree of antibiotic degradation has reached 69.2%. Additionally, a prolonged effect of the treatment was identified, caused by the oxidation of intermediate decomposition products by reactive oxygen species generated within the system. The most pronounced effect has been observed at an enrofloxacin concentration of 10 mg/L. The obtained results confirm the high efficiency and practical potential of this hybrid technology for the removal of antibiotics from water treatment systems.