Degradation of Enrofloxacin Antibiotic under Combined Ionizing Radiation and Biological Removal Technologies

摘要

Enrofloxacin degradation by ionizing radiation and cupriavidus metallidurans resistance wereinvestigated. Analysis by nuclear magnetic resonance spectroscopy (NMR) and fourier transforminfrared spectroscopy (FTIR) were performed to monitor changes in metabolic profiles of enrofloxacinafter irradiation at 50 KGy. The obtained result confirms that ionizing radiation process leads to thecleavage of three aromatic cycle, the cyclopropyl and the disparition of carboxyl acid function flowedby the formation of NH functions and aliphatic hydrocarbons chain. In addition, irradiation process isable to reduce the biological inhibition activity of enrofloxacin and leads to the growth ofC.metallidurans at high concentration of enrofloxacin (1mg/ml). Consequently, the combinedprocesses of ionizing radation followed by microbial removal of enrofloxacin seem to be the bestsolution for the treatment of effluents containing enrofloxacin antibiotics.