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Title:Facilitated Transport of Antibiotics by Biochar under Rainfall Simulations
Author(s):Funk, Andrea; Gonzalez, Javier; Johnston, Cliff; Zhang, Wei
antibiotic resistance
Abstract:Manure application to soils is a common practice; however manure may have antibiotics that may end up in waterways via surface or subsurface transport. Biochar, pyrolyzed biomass in an oxygen-absent environment, sorbs antibiotics which could keep these compounds in the soil until they degrade. In this study we used indoor rain simulations to determine the losses of antibiotics lincomycin, monensin, and tylosin in infiltration and runoff water samples using three different biochar rates (0, 1, and 2% w/w) and two rainfall rates (50 and 100mm/hr). Monensin was found in the highest quantities in infiltration water with recovery as high as 34% of total monensin applied, followed by lincomycin and tylosin respectively. Conversely, lincomycin had the highest recovery in water runoff with 0.90% recovered followed by monensin and tylosin respectively. Losses of antibiotics were dependent on the amount of biochar and rainfall rates across all rainfall simulations.
Issue Date:2019-05-22
Series/Report:2019 Emerging Contaminants in the Environment Conference (ECEC19)
Genre:Conference Paper / Presentation
Date Available in IDEALS:2019-05-31

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