Biblioteca Digital do Instituto Politécnico de Bragança   Instituto Politécnico de Bragança

Biblioteca Digital do IPB >
Escola Superior de Tecnologia e Gestão >
Tecnologia Química e Biológica >
DTQB - Artigos em Proceedings Não Indexados ao ISI/Scopus >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10198/1325

Título: Catalytic wet air oxidation of olive mill wastewater
Autor: Gomes, Helder
Figueiredo, José
Faria, Joaquim
Palavras-chave: Carbon supported catalysts
Catalytic wet air oxidation
Olive mill wastewater
Platinum and iridium catalysts
Wastewater treatment
Issue Date: 2006
Editora: EAAOP
Citação: Gomes, Helder; Figueiredo, José (2006) - Catalytic wet air oxidation of olive mill wastewater. In 1st European Conference on Environmental Applications of Advanced Oxidation Processes. Chania, Grécia.
Resumo: The objective of this work was to study the suitability of catalytic wet air oxidation (CWAO) for the treatment of olive mill wastewater (OMW). Accordingly, experiments were performed in a high pressure reactor at 100ºC and 200ºC under an oxygen partial pressure of 6.9 bar, using carbon supported platinum (1wt.% Pt) and iridium (5 wt.% Ir) catalysts prepared by incipient wetness impregnation. Both catalytic systems showed a very high activity in the total organic carbon (TOC) removal of the effluent, an increase in TOC removal relatively to non-CWAO being observed. At 200ºC, complete TOC and colour removal was obtained with the Pt/C catalyst after 8 h of reaction. At 100ºC, the results indicate that a certain fraction of compounds in the effluent (low molecular weight recalcitrant carboxylic acids)could not be removed even after prolonged reaction time. A kinetic model was developed taking into account catalytic and noncatalytic reaction, formation of refractory compounds and catalyst deactivation. A very good agreement between the model results and the CWAO experimental data at 200ºC was found. The results obtained in this work indicate that Pt/C is a promising catalyst for the CWAO of OMW.
URI: http://hdl.handle.net/10198/1325
Appears in Collections:DTQB - Artigos em Proceedings Não Indexados ao ISI/Scopus

Files in This Item:

File Description SizeFormat
1EAAOP-Chania-2006-OMW.pdf541,32 kBAdobe PDFView/Open

Please give feedback about this item
Statistics
FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpaceOrkut
Formato BibTex mendeley Endnote Logotipo do DeGóis 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 


© Instituto Politécnico de Bragança - Biblioteca Digital - Feedback - Statistics
Promotores do RCAAP   Financiadores do RCAAP

Fundação para a Ciência e a Tecnologia Universidade do Minho   Governo Português Ministério da Educação e Ciência PO Sociedade do Conhecimento (POSC) Portal oficial da União Europeia