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Federal University of Rio Grande do Norte, Brazil
Elisama Vieira is graduated in Chemistry and PhD in Chemicals (2015) from the Federal University of Rio Grande do Norte. During her PhD, she worked as a visiting scientist in the group of Prof. Manuel Andrés Rodrigo at the UCLM, Spain. In 2016, she is Associate Professor in the School of Science and Technology at the Federal University of Rio Grande do Norte. She was awarded the LOREAL-UNESCO For Women in Sciences (Brazil) (2016), the Prize on Environmental Electrochemistry by the International Society of Electrochemistry (2020) and Prize Hans Viertler (2023, Brazilian Society of Chemistry), Brazilian Women in Chemistry Awards (2024, American Chemical Society (ACS) and the Brazilian Chemical Society). She is an affiliate member of the Brazilian Academy of Sciences (2022-2027). She is author and co-author of more than 140 scientific publications, including 02 conference books, 08 book chapters, 01 book, 132 papers in peer-reviewed international scientific journals (h index-Scopus: 30 and more than 2900 citations), more than 185 contributions in conference proceedings, and inventor of 03 patent. Her research interests include (1) Development of electrochemical processes for a cleaner environment, (2) Removal of persistent pollutants from water and soil, (3) electrocatalysis and photoelectrocatalysis, (4) Coupling green energies to electrochemical remediation processes, (5) the electrosynthesis of oxidants, (6) Green Hydrogen as an energy vector for electrochemical processes, (7) electroanalysis as well as the construction of electrochemical-sensors, (8) waste valorization, (9) scientific dissemination and actions for gender equality.
Electro-refinery in organic waste management: bridging pollution control and resource recovery
The electro-refinery concept as an innovative and sustainable strategy to valorize organic wastes via electrochemical technologies. Unlike traditional electrochemical treatments that focus on complete mineralization of pollutants (e.g., to CO₂ and H₂O), the electro-refinery paradigm aims to selectively convert organic contaminants into high-value-added products, particularly carboxylic acids, that serve as precursors for fine chemicals, biofuels, or bioplastics. hese acids are consistently formed as stable intermediates in electrochemical oxidation (EO) processes. Rather than seeing their accumulation as inefficiency, the article proposes targeting their production through optimized operation conditions (e.g., current density, anode type) to achieve selective conversion. I shall discuss the experimental results Lignin valorization, Cashew-nut shell liquid (CNSL), cork and vinasse from reactor testing, the performance of electrodes and electrolyte. Alternatively, Separation Technologies: Electrodialysis (ED) is presented as an efficient method for recovering and purifying carboxylic acids post-electrolysis. Bipolar membranes combined with DSA have demonstrated superior performance for acids like acetic, fumaric, and succinic acids.
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