Enhanced Degradation of Ciprofloxacin Hydrochloride Using Hybrid Advanced Oxidation Process of Hydrodynamic Cavitation and Ozonation

• Published in: Chemical engineering & technology 2024-10, Vol.47 (10), p.n/a
• Main Authors: Bodawar, Narendra, Shetty, Rohit, Kamble, Sanjay, Kulkarni, Prashant
• Format: Article
• Language: English
• Subjects: Active Pharmaceutical Ingredients; Advance Oxidation Processes; Cavitation; Ciprofloxacin hydrochloride; Degradation; Hybrid AOPs; Hydrodynamic cavitation; Oxidation
• ISSN: 0930-7516; 1521-4125
• DOI: 10.1002/ceat.202300469

The degradation of ciprofloxacin hydrochloride (CFX), an extensively utilized antibiotic for bacterial infections, has been studied through the application of advanced oxidation processes (AOPs) including hydrodynamic cavitation (HC), ozonation (O3), the Fenton reaction, chemical oxidation, and hybrid AOPs such as HC/O3 and Fenton/O3. Among these, the hybrid combination of HC/O3 demonstrated the highest CFX degradation of 99.82 % within 180 min having an initial concentration of 1000 ppm. The optimization of the HC/O3 process was conducted by varying parameters including initial concentration, pH, ozone (O3) gas flowrate, and temperature. Throughout the degradation process, CFX underwent intermediate formation, which gradually degraded over time. The hydrodynamic cavitation (HC) in combination with ozone, referred to as the HC/ozonation process, was used for the degradation of ciprofloxacin hydrochloride present in wastewater. This process underwent optimization with respect to various reaction parameters, including the initial concentration, ozone flow rate, pH level, temperature, the influence of ions, and the specific water matrix. At these optimized conditions a degradation efficiency of 99.82 % was achieved after 180 min.