HAZMAT-D-16-02632R1 (1).pdf (2.29 MB)

Removal of benzoylecgonine from water matrices through UV254/H2O2 process: Reaction kinetic modeling, ecotoxicity and genotoxicity assessment

Download (2.29 MB)
journal contribution
posted on 27.10.2016, 10:22 by Danilo Spasiano, Danilo Russo, Marianna Vaccaro, A. Siciliano, Raffaele Marotta, M. Guida, Nuno M. Reis, Gianluca Li-Puma, Roberto Andreozzi
Benzoylecgonine (BE), the main cocaine metabolite, has been detected in numerous surface water and treatment plants effluents in Europe and there is urgent need for effective treatment methods. In this study, the removal of BE by the UV254/H2O2 process from different water matrices was investigated. By means of competition kinetics method, the kinetic constant of reaction between BE and the photogenerated hydroxyl radicals ([rad]OH) was estimated resulting in kOH/BE = 5.13 × 109 M−1 s−1. By-products and water matrices scavengers effects were estimated by numerical modeling of the reaction kinetics for the UV254/H2O2 process and validated in an innovative microcapillary film (MCF) array photoreactor and in a conventional batch photoreactor. The ecotoxicity of the water before and after treatment was evaluated with four organisms Raphidocelis subcapitata, Daphnia magna, Caenorhabditis elegans, and Vicia faba. The results provided evidence that BE and its transformation by-products do not have significant adverse effects on R. subcapitata, while D. magna underwent an increase of lipid droplets. C. elegans was the most sensitive to BE and its by-products. Furthermore, a genotoxicity assay, using V. faba, showed cytogenic damages during the cell mitosis of primary roots.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Chemical Engineering

Published in

Journal of Hazardous Materials

Volume

318

Pages

515 - 525

Citation

SPASIANO, D. ...et al., 2016. Removal of benzoylecgonine from water matrices through UV254/H2O2 process: Reaction kinetic modeling, ecotoxicity and genotoxicity assessment. Journal of Hazardous Materials, 318, pp. 515-525.

Publisher

© Elsevier

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2016

Notes

This paper was accepted for publication in the journal Journal of Hazardous Materials and the definitive published version is available at http://dx.doi.org/10.1016/j.jhazmat.2016.07.034.

ISSN

0304-3894

eISSN

1873-3336

Language

en

Usage metrics

Loughborough Publications

Keywords

Exports