Abstract
This chapter deals with the potential of membrane contactors for the oxidation of As(III) with air. In particular, experiments carried out on a flat membrane module of 40 cm2 of membrane area, equipped with a polypropylene membrane of 0.2 μm pore size, are presented and discussed. Oxidation experiments have been also performed without using membranes by: (1) stirring the water stream; (2) introducing air/oxygen into the water stream through a tube; (3) introducing air/oxygen into the water stream through a porous unit. With respect to the different systems analysed, membrane contactors lead to lower mass transport resistances in the liquid phase, significantly reducing the times for oxidation.
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Criscuoli, A., Galizia, A., Drioli, E. (2009). Arsenic Oxidation by Membrane Contactors. In: Václavíková, M., Vitale, K., Gallios, G.P., Ivaničová, L. (eds) Water Treatment Technologies for the Removal of High-Toxicity Pollutants. NATO Science for Peace and Security Series C: Environmental Security. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-3497-7_9
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DOI: https://doi.org/10.1007/978-90-481-3497-7_9
Publisher Name: Springer, Dordrecht
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