Abstract. The overall objective of this research was to determine the fate of amoxicillin in twowastewater reclamation systems containing biological and physical/chemical treatment processes.The results of this study indicate that amoxicillin is easily removed in a biological wastewater treatment system (<0.15 and 0.10 mg/L). Further evaluation of the physical/chemical treatment process,
which included reverse osmosis, ion exchange, and UV oxidation and disinfection, indicated that amoxicillin will be removed (<0.10 mg/L) should it breakthrough the biological system. The concern
of amoxicillin is not its presence in high concentrations in the effluent of a water reclamation system,but low antibiotic concentrations, which are known to encourage antibiotic resistance development.
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