[EN] After long-term electrodialysis, cleaning the membranes is crucial to extend their lifetime. In this work, we evaluate the effects of a three-stage chemical cleaning on electrochemical and structural properties of ...
Electrodialysis is a mature technology that exceeded the boundaries of brackish water desalination and continuously shows its adaptability for several applications. Alongside with the evolution of ion-exchange membranes, ...
[EN]
The mining industry has faced significant challenges to maintaining copper production technically, economically, and environmentally viable. Some of the major limitations that must be overcome in the coming years are ...
Santana Barros, Kayo; Martí Calatayud, Manuel César; Ortega Navarro, Emma María; Pérez-Herranz, Valentín; Espinosa, Denise Crocce Romano(Elsevier, 2020-12-15)
[EN] The use of EDTA as a complexing agent in electrodialysis has gained increasing attention in several industrial applications. Variations in pH at the membrane surface are known to alter the chemical equilibrium of EDTA ...
Martí Calatayud, Manuel César; Santana-Barros, Kayo(Elsevier, 2024)
[EN] Concentration polarization is the most constraining phenomenon for ion transport in a variety of electro-membrane processes. The development of concentration gradients at the interfaces between electrolyte solutions ...
Santana-Barros, Kayo; Carvalheira, Monica; Costa Marreiros, Bruno; Ascensão M. Reis, Maria; João Goulão Crespo; Pérez-Herranz, Valentín; Velizarov, Svetlozar(MDPI AG, 2023-03)
[EN] For the production of polyhydroxyalkanoates (PHA) using nitrogen-rich feedstocks (e.g., protein-rich resources), the typical strategy of restricting cell growth as a means to enhance overall PHA productivity by nitrogen ...
Feijoo, G. C.; Santana-Barros, Kayo; Scarazzato, T.; Espinosa, D.C.R.(Elsevier, 2021)
[EN] Due to environmental and human health concerns, the need for cleaner techniques able to extract and recover metals from mining process solutions has been increasing. In this work, the use of electrodialysis for ...
Benvenuti, Tatiane; Giacobbo, Alexandre; Trindade, Carolina de Moraes da; Santana-Barros, Kayo; Scarazzato, Tatiana(Elsevier, 2022)
The electromembrane process is a designation to describe technologies grounded on ion migration through ion-exchange membranes using the electrical potential gradient as the driving force. In this field, the main processes ...
Santana Barros, Kayo; Ortega Navarro, Emma María; Pérez-Herranz, Valentín; Romano Espinosa, Denise Crocce(Elsevier, 2020-05-15)
[EN] The use of cyanide-free complexing agents in brass electroplating has been tested in recent years and EDTA has shown to be a promising alternative. Herein, a rotating disc electrode was used to construct voltammetric ...
[EN]
In recent years, electrodialysis has been often considered as an appropriate method to treat industrial and/or municipal wastewater containing pharmaceutically active compounds. However, the scarcity of information ...
[EN] Electrodialysis is mostly used for drinking water production but it has gained applicability in different new fields in recent decades. Membrane characteristics and ion transport properties strongly influence the ...
Santana-Barros, Kayo; Machado, André Luiz Vargas; Vielmo, Vicente Schaeffer; Velizarov, Svetlozar; Ferreira, Jane Zoppas; Pérez-Herranz, Valentín; Bernardes, Andrea Moura(Elsevier, 2022-11-01)
[EN] Antimony (Sb) and bismuth (Bi), which have been considered critical raw materials by the European Commission, cause inconveniences to copper production when they are present as impurities in copper elec-trorefining ...
Gravensteyn, Cas(Universitat Politècnica de València, 2024-10-02)
[ES] La Comisión Europea emite una lista anual de sustancias que se declaran como Materias Primas Críticas. Esta lista incluye metaloides, como el antimonio, que son de especial relevancia para la industria y están en ...
[EN] Growing environmental concerns have led to the development of cleaner processes, such as the substitution of cyanide in electroplating industries and changes in the treatment of wastewaters. Hence, we evaluated the ...
Santana Barros, Kayo(Universitat Politècnica de València, 2020-07-03)
[EN] Growing concerns about environment and human health have led to the development of cleaner industrial processes. In recent years, the replacement of cyanide by EDTA in the brass electroplating baths has been assessed. ...