Removal of contaminants of emerging concern (CECs) and antibiotic resistant bacteria in urban wastewater using UVA/TiO 2 /H 2 O 2 photocatalysis

The dispersion of pollutants and proliferation of antibiotic resistant bacteria in the aquatic environment are an emerging health concern worldwide. In this sense, it is essential to develop new technologies to increase the quality of wastewater treatment, which is spread throughout the environment....

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Bibliographic Details
Published in:Chemosphere (Oxford) 2018-07, Vol.210, p.449
Main Authors: Jiménez-Tototzintle, Margarita, Ferreira, Izabel Jales, da Silva Duque, Sheila, Guimarães Barrocas, Paulo Rubens, Saggioro, Enrico Mendes
Format: Article
Language:English
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Summary:The dispersion of pollutants and proliferation of antibiotic resistant bacteria in the aquatic environment are an emerging health concern worldwide. In this sense, it is essential to develop new technologies to increase the quality of wastewater treatment, which is spread throughout the environment. The present study has demonstrated evidence of the existence of antibiotic and mercury-resistant bacteria in the aquatic environment. The application of heterogeneous photocatalysis with UVA/TiO P25 slurry (200 mg L ), UVA/TiO -immobilized, and UVA/TiO -immobilized/H O were evaluated for the simultaneous elimination of a mixture of contaminants of emerging concern (acetamiprid (ACP), imazalil (IMZ) and bisphenol A (BPA)) and inactivation of antibiotic and mercury-resistant bacteria (Pseudomonas aeruginosa and Bacillus subtilis). UVA/TiO -immobilized/H O increased the inactivation and elimination of the contaminants. After the combined treatment, the mixture of BPA, IMZ and ACP decreased 62%, 21% and
ISSN:1879-1298