Journal
SCIENTIFIC WORLD JOURNAL
Volume -, Issue -, Pages -Publisher
HINDAWI LTD
DOI: 10.1155/2013/196470
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Funding
- European project PHOTOMEM [FP7-SME-2011, 262470]
- European project ETOILE [FP7-SME-2007-1, 222331]
- Spanish Ministry of Science and Innovation [CTQ2007-66178, CTQ2010-21411]
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Photocatalytic degradation of olive oil mill wastewater from two-phase continuous centrifugation process was studied. A novel photocatalyst with ferromagnetic properties was characterized and investigated. The degradation capacity of the photocatalytic process of olive oil washing wastewater (OMW) and mixture of olives and olive oil (1 v/v) washing wastewaters (MOMW) was demonstrated. At lab-scale, the %COD removal and residence time (tau) for MOMW and OMW were 58.4% (tau = 2h) and 21.4% (tau = 3h), respectively. On the other hand, at pilot scale, 23.4% CODremoval, 19.2% total phenols(removal), and 28.1% total suspended solids(removal) were registered at the end of the UV/TiO2 process for OMW, whereas 58.3% CODremoval, 27.5% total phenols(removal), and 25.0% total suspended solids(removal) for MOMW. Also, before the UV/TiO2 reaction, a pH-T flocculation operation as pretreatment was realized. The overall efficiency of the treatment process for MOMW was up to 91% of CODremoval, in contrast with 33.2% of CODremoval for OMW.
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