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6CCVD Research

Novel Ti/RuO2IrO2 anode to reduce the dangerousness of antibiotic polluted urines by Fenton-based processes

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2020-12-18
JournalChemosphere
AuthorsIsabelle M.D. Gonzaga, Ɓngela Moratalla, Katlin Ivon Barrios Eguiluz, Giancarlo R. Salazarā€Banda, Pablo CaƱizares
InstitutionsUniversidade Tiradentes, Instituto de Tecnologia e Pesquisa
Citations40

Abstract

Section titled ā€œAbstractā€

The treatment of hospital wastewater is very complex, so treating polluted human urine is a significant challenge. Here, we tested a novel MMO-Ti/RuO<sub>2</sub>IrO<sub>2</sub> electrode to reduce the ecotoxicity risk of hospital urines contaminated with antibiotics. This electrode was used as the anode in electro-Fenton (EF) and photoelectro-Fenton (PhEF) processes. The results were compared with those obtained using the boron-doped diamond (BDD) anode, as well as those obtained by a conventional Fenton oxidation. In order to analyze the performance of the processes, the treatments were evaluated on the subject of Penicilin G (PenG) removal, toxicity (using a standardized method with Vibrio Fisheri), and antibiotic activity (Enterococcus faecalis as the target bacterium). The results reveal that PenG degrades in the following order: Fenton < EF < PhEF. The best results are found for the MMO-PhEF, which completely removed PenG, decreased 96% of toxicity, and completely removed antibiotic activity. Besides, for comparison, tests were performed with BDD, and results point out the higher convenience of the new electrode in terms of acceptable use of energy because the effluents generated can be further degraded in an urban wastewater treatment plant. Because of that, MMO-RuO<sub>2</sub>-IrO<sub>2</sub> emerges as a promising cost-effective material for the pre-treatment of hospital urine effluents.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. 2006 - Boron doped diamond electrode for the wastewater treatment [Crossref]
  2. 2012 - Degradation of paracetamol by advance oxidation processes using modified reticulated vitreous carbon electrodes with TiO2 and CuO/TiO2/Al2O3 [Crossref]
  3. 2009 - The occurrence of perchlorate during drinking water electrolysis using BDD anodes [Crossref]
  4. 2010 - Chlorate and perchlorate - new criterions for environmentally-friendly processes in Advanced Oxidation [Crossref]
  5. 2014 - Electrochemical Advanced oxidation processes, formation of halogenate and perhalogenate species: a critical review [Crossref]
  6. 2018 - Electrolytic and electro-irradiated technologies for the removal of chloramphenicol in synthetic urine with diamond anodes [Crossref]
  7. 2019 - The role of the anode material in selective penicillin G oxidation in urine [Crossref]
  8. 2015 - Treatment of synthetic urine by electrochemical oxidation using conductive-diamond anodes [Crossref]
  9. 2017 - New perspectives for advanced oxidation processes
  10. 2014 - Seasonal occurrence and removal of pharmaceutical products in municipal wastewaters

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