Glyphosate degradation in aqueous medium using advanced oxidative processes

• Grant number: 19/20956-8
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: January 01, 2020
• End date: June 30, 2021
• Field of knowledge: Agronomical Sciences - Agricultural Engineering - Soil and Water Engineering
• Principal Investigator: Juliane Cristina Forti
• Grantee: Victor Evandro Costa da Silva
• Host Institution: Faculdade de Ciências e Engenharia. Universidade Estadual Paulista (UNESP). Campus de Tupã. Tupã , SP, Brazil

Abstract

Research indicates that water contamination by pesticides is growing exponentially every day. The herbicide that has stood out as a potential cause of danger to human health is glyphosate (N-(phosphonomethyl) glycine), a systemic and non-selective controller that is widely used in the current scenario. Due to this adversity, the need arises for studies aiming at efficient, adequate and viable treatment for this herbicide. The treatments that have gained prominence for their efficiency are advanced oxidative electrochemical processes, which produce highly oxidizing hydroxyl radicals and are capable of oxidizing compounds that are difficult to degrade. In this scenario, the aim of this study is to apply and compare different types of advanced oxidative electrochemical processes (Fenton, Electro-Fenton, Photoelectron and Photoelectro-Fenton) in the degradation of the commercial glyphosate-containing herbicide Roundup®. For this purpose will be used oxide electrodes and variations of iron and hydrogen peroxide concentrations, in order to optimize oxidation conditions seeking mineralization and the best cost/benefit of treatment. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DA SILVA, VICTOR E. C.; TADAYOZZI, YASMIN S.; PUTTI, FERNANDO F.; SANTOS, FELIPE A.; FORTI, JULIANE C.. Degradation of commercial glyphosate-based herbicide via advanced oxidative processes in aqueous media and phytotoxicity evaluation using maize seeds. Science of The Total Environment, v. 840, p. 9-pg., 2022-06-15. (16/22115-2, 19/20956-8)