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Electrochemical Treatment of the Effluent of a Fine Chemical Manufacturing Plant by P. Cañizares; R. Paz; J. Lobato; C. Sáez; M.A. Rodrigo is a Environmental Science article available to read on EtoBox.

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In this work, the electrochemical oxidation of an actual industrial wastewater with conductive-diamond anodes has been studied. The wastewater is the effluent of a fine chemicals plant. This effluent consists of an aqueous solution of solvents (ketones and alcohols) with a high concentration of aromatic compounds coming from the raw materials, intermediates and products of the different processes of the plant and its COD is around 6000 mg dm -3 . The electrolyses were carried out in a discontinuous operation mode under galvanostatic conditions, using a bench-scale plant equipped with a single compartment electrochemical flow cell. The conductive-diamond electrochemical oxidation (CDEO) allowed achieving the complete mineralization of the waste with high current efficiencies. These efficiencies seem to strongly depend on the concentration, pH and temperature but not on the current density (in the range studied). This confirms that besides the hydroxyl radicals mediated oxidation, CDEO combines other important oxidation processes such as the direct electrooxidation on the diamond surface and the oxidation mediated by other electrochemically formed compounds generated on this electrod

Who reads Electrochemical Treatment of the Effluent of a Fine Chemical Manufacturing Plant?

Author

P. Cañizares; R. Paz; J. Lobato; C. Sáez; M.A. Rodrigo

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0304-3894)

Published

2006

Language

EN

Field

Environmental Science (Physical Sciences)