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1,4-Dioxane removal from water and membrane fouling elimination using CuO-coated ceramic membrane coupled with ozone

  • Advanced Oxidation Processes: Recent Achievements and Perspectives
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Abstract

1,4-Dioxane is a synthetic cyclic ether traditionally used as a chlorinated solvent stabilizer. It is a small molecule and recalcitrant compound that is difficult to remove by conventional processes and in this regard, there is a need for the development of new technologies. In this study, an innovative CuO-coated ceramic membrane (CM) reactor system that can be used to oxidize 1,4-dioxane dissolved in surface water by catalytic ozonation was developed. The effect of the thickness of the CuO deposited on the ceramic membrane surface on the permeability, fouling resistance, 1,4-dioxane removal, and toxicity was evaluated. The efficiency of the hybrid ozonation coupled to the use of a CuO-coated CM in 1,4-dioxane removal and the antifouling properties were assessed from TOC and 1,4-dioxane removal kinetics data. Reusability in four cycles was also tested. The performance of the CuO-coated CM remained stable during the four cycles of the reusability test. The ceramic membrane coated with CuO particles coupled with ozonation is appropriate for 1,4-dioxane degradation in the aqueous phase (45% efficiency, rate constant increased by a factor of 2.98 compared with the uncoated-hybrid process) and fouling removal (60 min to recovery the permeate flux).

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Acknowledgments

The authors would like to acknowledge the Central Laboratory of Electronic Microscopy (LCME) at the Federal University of Santa Catarina State (UFSC), Brazil, for the SEM analysis.

Funding

This study was financially supported by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES), Brazil (Finance Code 001) and the Conselho Nacional de Desenvolvimento Cientifíco e Tecnológico (CNPq), Brazil.

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Correspondence to Regina de Fatima Peralta Muniz Moreira.

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Responsible editor: Angeles Blanco

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Scaratti, G., De Noni Júnior, A., José, H.J. et al. 1,4-Dioxane removal from water and membrane fouling elimination using CuO-coated ceramic membrane coupled with ozone. Environ Sci Pollut Res 27, 22144–22154 (2020). https://doi.org/10.1007/s11356-019-07497-6

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  • DOI: https://doi.org/10.1007/s11356-019-07497-6

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