Removal of dimethylsulfoxide from wastewater using mild oxidation with H2O2 over Ti-based catalysts

Ana Mihaela Cojocariu; P Hubert Mutin; Emil Dumitriu; André Vioux; François Fajula; Vasile Hulea

doi:10.1016/j.chemosphere.2009.08.059

Removal of dimethylsulfoxide from wastewater using mild oxidation with H2O2 over Ti-based catalysts

Chemosphere. 2009 Nov;77(8):1065-8. doi: 10.1016/j.chemosphere.2009.08.059. Epub 2009 Oct 2.

Authors

Ana Mihaela Cojocariu¹, P Hubert Mutin, Emil Dumitriu, André Vioux, François Fajula, Vasile Hulea

Affiliation

¹ Institut Charles Gerhardt, UMR 5253, CNRS-UM2-ENSCM-UM1, Université Montpellier 2, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France.

PMID: 19800653
DOI: 10.1016/j.chemosphere.2009.08.059

Abstract

The mild catalytic oxidation of dimethylsulfoxide (DMSO) into biodegradable dimethylsulfone is proposed as an efficient pretreatment of wastewaters subjected to biological treatment processes. A SiO(2)-TiO(2) mesoporous xerogel prepared by a non-hydrolytic route, as well as titanium silicalite TS-1 showed very good activity and stability in the catalytic oxidation of DMSO with H(2)O(2) in dilute aqueous solution, at room temperature.

MeSH terms

Catalysis
Dimethyl Sulfoxide / chemistry*
Dimethyl Sulfoxide / isolation & purification*
Hydrogen Peroxide / chemistry*
Oxidation-Reduction
Silicon Dioxide / chemistry
Temperature
Titanium / chemistry*
Waste Disposal, Fluid*
Water Pollutants, Chemical / chemistry*
Water Pollutants, Chemical / isolation & purification*

Substances

Water Pollutants, Chemical
titanium dioxide
Silicon Dioxide
Hydrogen Peroxide
Titanium
Dimethyl Sulfoxide