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Characterization of transformation products of selected fluoroquinolone antimicrobials subjected to degradation in anaerobic reactors

Grant number: 14/19650-8
Support Opportunities:Scholarships in Brazil - Post-Doctoral
Effective date (Start): December 01, 2014
Effective date (End): January 31, 2017
Field of knowledge:Engineering - Sanitary Engineering - Water Supply and Wastewater Treatment
Acordo de Cooperação: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal Investigator:Marcelo Zaiat
Grantee:Tanare Cambraia Ribeiro Ferreira
Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
Associated research grant:09/15984-0 - Bioenergy production from wastewaters and environmental fitting of liquid and solid wastes generated, AP.TEM
Associated scholarship(s):15/24186-1 - Anaerobic biodegradation of enrofloxacin in natural lake sediment and bioreactors, BE.EP.PD


Wastewater contamination with pharmaceutical drugs is of remarkable importance. Among other drugs, antimicrobials cause concern due to their hole in bacterial resistance. Effluents from industries, residential districts, hospitals and animal farms are the main sources of contamination by antimicrobials. Moreover, conventional wastewater treatments have shown low efficiency in the removal of these xenobiotics, while alternative options for that treatment have few studies and their consequences are not clearly evaluated. Still regarding environmental concerns, the Green Chemistry has been driving modernization of analytical strategies. In the scope of pharmaceutical drugs analysis in complex matrices, invaluable importance is conferred to the development and application of miniaturized sample preparation and chromatographic separation. Currently, several strategies of solid phase or liquid phase microextraction can be developed for wastewater samples, and capillary liquid chromatography with fast and very efficient columns are greatly recommended by the Green Analytical Chemistry. Thus, the aims of this project are the characterization of degradation products of fluoroquinolone antimicrobials using fixed-bed biological reactor; the development of modern strategies for the sample preparation of wastewaters containing antimicrobials and subjected to degradation; and the analysis of these compounds to the trace level using liquid chromatography and different techniques of mass spectrometry. (AU)

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