Abstract：
:In this work, the treatment of an actual industrial waste with three advanced oxidation processes (AOP) has been studied: conductive-diamond electrooxidation (CDEO), ozonation and Fenton oxidation. The wastewater comes from olive-oil mills (OMW) and contains a COD of nearly 3000 mg dm(-3). CDEO allowed achieving the complete mineralization of the waste with high current efficiencies. Likewise, both ozonation and Fenton oxidation were able to treat the wastes, but they obtained very different results in terms of efficiency and mineralization. The accumulation of oxidation-refractory compounds as final products excludes the use of ozonation and Fenton oxidation as a sole treatment technology. This confirms that besides the hydroxyl-radical mediated oxidation, CDEO combines other important oxidation processes such as the direct electro-oxidation on the diamond surface and the oxidation mediated by other electrochemically formed compounds generated on this electrode.
journal_name
Chemospherejournal_title
Chemosphereauthors
Cañizares P,Lobato J,Paz R,Rodrigo MA,Sáez Cdoi
10.1016/j.chemosphere.2006.10.064subject
Has Abstractpub_date
2007-03-01 00:00:00pages
832-8issue
4eissn
0045-6535issn
1879-1298pii
S0045-6535(06)01402-0journal_volume
67pub_type
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