According to the explosive increse in the use of antibiotics worldwide, their contcentrations in global and local waterstream has been increasing, which has raised a great concern among scientists since a couple of decades. Conventional water and wastewater reclamation technologies have not sufficiently treated and detoxified pharmaceutic and antibiotic chemicals and usually expensive. The goal of this study is to investigate the potential use of nano-sized zero-valent iron (nZVI) particles to effectively degradae and detoxify aqeuous doxycycline to develop a novel cost-effective treatment technology. A batch kinetic test was conducted to charcaterize the reductive degradation of doxycylcline by nZVI and significant reaction parameters for the reaction such as nZVI/doxycyline ratio and  pH were evaluated to obtain an optimal operation condition. Finally, target and transfromation products have been identified by UV/Vis spectrometer and UHPLC to identify the reaction pathways.The highest removal of doxycycline was observed at pH 6 and at nZVI:doxycycline of 2.5:1. The target was fully minerized and no duahter products were observed under the operation condtion.<br/>

Reductive degradation of aqueous doxycycline by nZVI

2019 Fall National Meeting

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