Advanced oxidation processes based on the in situ activation of oxidants via UVC and solar radiation for the simultaneous elimination of microcontaminants and pathogens

• Grant number: 20/07351-7
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: October 01, 2020
• End date: September 30, 2023
• Field of knowledge: Engineering - Sanitary Engineering - Water Supply and Wastewater Treatment
• Principal Investigator: Marcos Roberto de Vasconcelos Lanza
• Grantee: Isaac José Sánchez Montes
• Host Institution: Instituto de Química de São Carlos (IQSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Associated research grant: 17/10118-0 - Study and application of electrochemical technology for the analysis and degradation of endocrine interferents: materials, sensors, processes and scientific dissemination, AP.TEM
• Associated scholarship(s): 21/13314-0 - UV-based advanced oxidation processes for the treatment of complex real matrices: analytical, ecotoxicological and cytotoxicity evaluation, BE.EP.PD

Abstract

The contamination of surface water by contaminants of emerging concern and, more recently, by pathogenic bacteria is increasingly attracting the attention of the scientific community and society to avoid the risk of diseases and the production of superbugs. In this sense, this postdoctoral project aims to study the in situ activation of oxidants (H2O2, S2O82-, HSO5- and HOCl) by irradiating the system with UVC light, UVA light in the presence of Fe3+ ion and the complex agent ethylenediamine-N,N'-disuccinic acid (EDDS) for use in neutral solutions, as well as to use this last process on a semi-pilot scale and using natural solar radiation. These processes will be used for the simultaneous elimination of an endocrine disruptor, antibiotic, and pesticide in addition to the bacteria Escherichia coli, Salmonella typhimurium and Bacillus subtilis. The performance of the UVC/Oxidants, UVA/Oxidants/Fe3+-EDDS, and Solar/Oxidants/Fe3+-EDDS processes will be monitored by the concentrations decay of organics and bacteria, the byproducts and inorganic ions produced, and the possible regrowth of bacteria. Tests with scavengers and electronic paramagnetic resonance spectroscopy will be carried out to elucidate the radicals generated, e.g., HOÏ, SO4Ï- or ClÏ, and the main oxidation mechanisms. (AU)

Scientific publications

(6)

(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)

SANCHEZ-MONTES, ISAAC; SANTOS, GESSICA O. S.; SILVA, TAYNARA O.; COLOMBO, RENATA; LANZA, MARCOS R. V.. An innovative approach to the application of electrochemical processes based on the in-situ generation of H2O2 for water treatment. JOURNAL OF CLEANER PRODUCTION, v. 392, p. 10-pg., 2023-02-07. (14/50945-4, 17/10118-0, 19/08701-4, 20/02743-4, 20/07351-7)

SILVA, TAYNARA O.; GOULART, LORENA A.; SANCHEZ-MONTES, ISAAC; SANTOS, GESSICA O. S.; SANTOS, RENATO B.; COLOMBO, RENATA; LANZA, MARCOS R. V.. Using a novel gas diffusion electrode based on PL6 carbon modified with benzophenone for efficient H2O2 electrogeneration and degradation of ciprofloxacin. CHEMICAL ENGINEERING JOURNAL, v. 455, p. 11-pg., 2023-02-02. (14/50945-4, 20/02743-4, 17/10118-0, 20/07351-7, 19/08701-4, 16/08760-2)

SANTOS, GESSICA O. S.; GOULART, LORENA A.; CORDEIRO-JUNIOR, PAULO J. M.; SANCHEZ-MONTES, ISAAC; LANZA, MARCOS R., V. Pharmaceutical contaminants: Ecotoxicological aspects and recent advances in oxidation technologies for their removal in aqueous matrices. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, v. 10, n. 6, p. 31-pg., 2022-11-16. (16/08760-2, 17/10118-0, 20/02743-4, 21/13314-0, 20/07351-7, 16/19612-4, 22/03386-6)

SANTOS, GESSICA O. S.; CORDEIRO-JUNIOR, PAULO JORGE M.; SANCHEZ-MONTES, ISAAC; SOUTO, ROBSON S.; KRONKA, MATHEUS S.; LANZA, MARCOS R. V.. Recent advances in H2O2 electrosynthesis based on the application of gas diffusion electrodes: Challenges and opportunities. CURRENT OPINION IN ELECTROCHEMISTRY, v. 36, p. 13-pg., 2022-12-01. (16/19612-4, 20/07351-7, 17/23464-3, 20/02743-4, 17/10118-0)

ALVARENGA, AUGUSTO D.; FACURE, MURILO H. M.; SANCHEZ-MONTES, ISAAC; OLIVEIRA, GESSICA O. S.; LANZA, MARCOS R. V.; MERCANTE, LUIZA A.; CORREA, DANIEL S.. Multifunctional and sustainable soot-modified nanofibrous membrane for adsorption, sensing and hydrogen peroxide electrogeneration. JOURNAL OF CLEANER PRODUCTION, v. 422, p. 11-pg., 2023-09-08. (17/10582-8, 20/02743-4, 14/50945-4, 17/10118-0, 20/07351-7, 18/22214-6)

SANCHEZ-MONTES, ISAAC; SANTOS, GESSICA O. S.; DOS SANTOS, ALEXSANDRO J.; FERNANDES, CARLOS H. M.; SOUTO, ROBSON S.; CHELME-AYALA, PAMELA; EL-DIN, MOHAMED GAMAL; LANZA, MARCOS R. V.. Toxicological aspect of water treated by chlorine-based advanced oxidation processes: A review. Science of The Total Environment, v. 878, p. 20-pg., 2023-06-20. (14/50945-4, 20/02743-4, 22/03386-6, 17/10118-0, 20/07351-7, 21/13314-0, 19/20634-0, 21/08701-4)