Application of Doehlert matrix to determine the optimal conditions of electrochemical treatment of tannery effluents

The oxidation of organic and inorganic pollutants present in tannery effluents has been realised by electrochemical way. The influence of the electrochemical reactor parameters was carried out by the use of Doehlert matrix. The obtained results have shown that the current intensity and the electroly...

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Veröffentlicht in:	Journal of hazardous materials 2009-04, Vol.163 (1), p.251-258
Hauptverfasser:	Hammami, Samiha, Ouejhani, Ali, Bellakhal, Nizar, Dachraoui, Mohamed
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Carbon Chemical engineering Chemical yield COD Crack opening displacement Doehlert matrix Effluents Electrochemical oxidation Electrochemical Techniques - instrumentation Electrochemical Techniques - methods Electrodes Electrolysis Exact sciences and technology Industrial Waste Influents Optimization Oxidation Oxygen demand Pollutants Pollution Reactors Tanneries Tannery effluents Tanning TOC Trivalent chromium Waste Management - instrumentation Waste Management - methods
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Beschreibung
Zusammenfassung:	The oxidation of organic and inorganic pollutants present in tannery effluents has been realised by electrochemical way. The influence of the electrochemical reactor parameters was carried out by the use of Doehlert matrix. The obtained results have shown that the current intensity and the electrolysis time were the main influent parameters on the removal ratio of chemical oxygen demand (COD), total organic carbon (TOC), electrochemical oxidation of trivalent chromium and sulphite ions.
ISSN:	0304-3894 1873-3336
DOI:	10.1016/j.jhazmat.2008.06.124