17-beta-Estradiol: Significant reduction of its toxicity in water treated by photocatalysis
Por:
Orozco-Hernandez, Luis, Manuel Gomez-Olivan, Leobardo, Elizalde-Velazquez, Armando, Natividad, Reyna, Fabian-Castono, Lucio, SanJuan-Reyes, Nely
Publicada:
15 jun 2019
Resumen:
The aim of this study was to assess the efficiency of photocatalysis by
TiO2 on the removal of 17-beta-estradiol (E2) (at environmentally
relevant concentrations) and the toxicity caused by this emerging
pollutant. After 60 min of TiO2/UV treatment at pilot scale (14 L), E2
was removed from water approximately 85%. The toxicity was established
by using Cyprinus carpio as bioindicator organism and oxidative stress
biomarkers (OSB): [lipid peroxidation level (LPX), hydroperoxide
content (HPC) and protein carbonyl content (PCC)] and enzymes
[superoxide dismutase (SOD) and catalase (CAT)]. It was found that the
photocatalytic treatment led to significantly reduce OSB in
approximately 85-95%. Thus, it can be concluded that heterogeneous
photocatalysis by TiO2 is an efficient process to eliminate the toxicity
caused by E2 and thus to remediate water polluted with this molecule.
(C) 2019 Elsevier B.V. All rights reserved.
Filiaciones:
Orozco-Hernandez, Luis:
Univ Autonoma Estado Mexico, Fac Quim, Lab Toxicol Ambiental, Paseo Colon Intersecc Paseo Tollocan S-N, Toluca 50120, Estado De Mexic, Mexico
Manuel Gomez-Olivan, Leobardo:
Univ Autonoma Estado Mexico, Fac Quim, Lab Toxicol Ambiental, Paseo Colon Intersecc Paseo Tollocan S-N, Toluca 50120, Estado De Mexic, Mexico
Elizalde-Velazquez, Armando:
Univ Autonoma Estado Mexico, Fac Quim, Lab Toxicol Ambiental, Paseo Colon Intersecc Paseo Tollocan S-N, Toluca 50120, Estado De Mexic, Mexico
Natividad, Reyna:
Univ Autonoma Estado Mexico, Chem Engn Lab, Ctr Conjunto Invest Quim Sustentable UAEM UNAM, Unidad San Cayetano, Carretera Toluca Atlacomulco Km 145, Toluca 50200, Estado De Mexic, Mexico
Fabian-Castono, Lucio:
Univ Autonoma Estado Mexico, Fac Quim, Lab Toxicol Ambiental, Paseo Colon Intersecc Paseo Tollocan S-N, Toluca 50120, Estado De Mexic, Mexico
SanJuan-Reyes, Nely:
Univ Autonoma Estado Mexico, Fac Quim, Lab Toxicol Ambiental, Paseo Colon Intersecc Paseo Tollocan S-N, Toluca 50120, Estado De Mexic, Mexico
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