| Full text | |
| Author(s): |
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.
Total Authors: 8
|
| Document type: | Journal article |
| Source: | Science of The Total Environment; v. 878, p. 20-pg., 2023-06-20. |
| Abstract | |
As well established in the literature, residual toxicity is an important parameter for evaluating the sanitary and envi-ronmental safety of water treatment processes, and this parameter becomes even more crucial when chlorine-based processes are applied for water treatment. Eliminating initial toxicity or preventing its increase after water treatment remains a huge challenge mainly due to the formation of highly toxic disinfection by-products (DBPs) that stem from the degradation of organic contaminants or the interaction of the chlorine-based oxidants with different matrix com-ponents. In this review, we present a comprehensive discussion regarding the toxicological aspects of water treated using chlorine-based advanced oxidation processes (AOPs) and the recent findings related to the factors influencing toxicity, and provide directions for future research in the area. The review begins by shedding light on the advances made in the application of free chlorine AOPs and the findings from studies conducted using electrochemical technol-ogies based on free chlorine generation. We then delve into the insights and contributions brought to the fore regard-ing the application of NH2Cl-and ClO2-based treatment processes. Finally, we broaden our discussion by evaluating the toxicological assays and predictive models employed in the study of residual toxicity and provide an overview of the findings reported to date on this subject matter, while giving useful insights and directions for future research on the topic. (AU) | |
| FAPESP's process: | 14/50945-4 - INCT 2014: National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactivies |
| Grantee: | Maria Valnice Boldrin |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 20/02743-4 - Fe/RuO2-TiO2 films supported on carbon felt for norfloxacin degradation by heterogeneous electro-fenton process |
| Grantee: | Géssica de Oliveira Santiago Santos |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 22/03386-6 - Treatment of VOCs by a combined absorption and heterogeneous electron-Fenton using iron-modified cathodes |
| Grantee: | Géssica de Oliveira Santiago Santos |
| Support Opportunities: | Scholarships abroad - Research Internship - Post-doctor |
| FAPESP's process: | 17/10118-0 - Study and application of electrochemical technology for the analysis and degradation of endocrine interferents: materials, sensors, processes and scientific dissemination |
| Grantee: | Marcos Roberto de Vasconcelos Lanza |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 20/07351-7 - Advanced oxidation processes based on the in situ activation of oxidants via UVC and solar radiation for the simultaneous elimination of microcontaminants and pathogens |
| Grantee: | Isaac José Sánchez Montes |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 21/13314-0 - UV-based advanced oxidation processes for the treatment of complex real matrices: analytical, ecotoxicological and cytotoxicity evaluation |
| Grantee: | Isaac José Sánchez Montes |
| Support Opportunities: | Scholarships abroad - Research Internship - Post-doctor |
| FAPESP's process: | 19/20634-0 - Treatment of wastewater contaminated with endocrine interferences through the application of electrochemical advanced oxidation processes: synergistic effect of different carbon supported cathodes |
| Grantee: | Alexsandro Jhones dos Santos |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 21/08701-4 - Application of electrochemically driven technologies to remove real concentrations of persistent organic pollutants in complex water matrices |
| Grantee: | Alexsandro Jhones dos Santos |
| Support Opportunities: | Scholarships abroad - Research Internship - Post-doctor |