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Matrix effects and degradation paths of antibiotics by Fenton and photo-fenton heterogeneous process

Grant number: 19/22218-4
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): April 01, 2020
Effective date (End): December 31, 2022
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
Principal researcher:Raquel Fernandes Pupo Nogueira
Grantee:Jany Hellen Ferreira de Jesus
Home Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
Associated scholarship(s):22/06389-6 - Correlating matrix effect, degradation pathways, and toxicity of antibiotics during the heterogeneous photo-Fenton process under solar irradiation, BE.EP.PD

Abstract

Due to the increase in the use of antibiotics, concern about improper disposal and the use of inefficient techniques to treat contaminated water in treatment plants, since antimicrobial resistance to antibiotics has been considered one of the main public health problems in the 21st century. In this context, the aim of this project is the degradation of trimethoprim and sulfamethoxazole, two antibiotics widely used in Brazil, by heterogeneous fenton and photo-fenton processes using low cost materials such as iron mining waste and clay with immobilized iron. It is also proposed a comparison of the degradation efficiency, evaluated by the determination of degradation products. The presence of organic and inorganic species in the effluent can considerably decrease the degradation of the target contaminants with different catalysts. The variability of the characteristics of the hospital effluent and Araraquara sewage treatment plant, which affect the degradation efficiency of antibiotics, will also be evaluated, as well as the efficiency of the hospital effluent disinfection. (AU)

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