Journal
WASTE MANAGEMENT
Volume 102, Issue -, Pages 412-419Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.wasman.2019.11.001
Keywords
Pig slurry; Pharmaceuticals; Antibiotics; Nitrification-denitrification; Nutrient management
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Funding
- Department of the Catalan Government through the Consolidated Research Groups [2017 SGR 1677, ICRA-ENV 2017 SGR 1124]
- Secretary of Universities and Research of the Counsel of Economy and Knowledge of the Catalan Government (AGAUR, Spain)
- COFUND Program of the Marie Curie Actions of the 7th RD EU Program
- Spanish Ministry of Economy and Competitiveness (Spain) [FJCI-2015-24616]
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The fate and degradation of 28 multiple-class veterinary pharmaceuticals in an on-farm pig slurry treatment plant based on solid-liquid separation and a nitrification-denitrification (NDN) sequence batch reactor (SBR) were evaluated for the first time. The pharmaceuticals detected at the highest concentrations in raw pig slurries belonged to the group of tetracycline antibiotics. Fluoroquinolone, lincosamide and pleuromutilin antibiotics and other drugs such as flubendazole and flunixin were also frequently detected. After solid-liquid separation, target compounds were distributed in an average of 64% onto the liquid fraction. Pharmaceuticals distributed in this fraction were removed in an average of almost 50% after being treated in NDN-SBR. Lincomycin was the compound with the highest removal percentage, reaching 100% reduction, while tetracyclines and fluoroquinolones showed moderate removal percentages (50 and 40%, respectivelyz). Regarding nitrogen removal, NDN-SBR reduced a 77% of the content of this nutrient in the liquid slurry fraction. (C) 2019 Elsevier Ltd. All rights reserved.
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