Publication
Catalytic wet air oxidation of olive mill wastewater
| dc.contributor.author | Gomes, Helder | |
| dc.contributor.author | Figueiredo, José | |
| dc.contributor.author | Faria, Joaquim | |
| dc.date.accessioned | 2010-01-19T18:22:20Z | |
| dc.date.available | 2010-01-19T18:22:20Z | |
| dc.date.issued | 2006 | |
| dc.description.abstract | 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. | pt |
| dc.identifier.citation | 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. | pt |
| dc.identifier.uri | http://hdl.handle.net/10198/1325 | |
| dc.language.iso | eng | pt |
| dc.publisher | EAAOP | pt |
| dc.subject | Carbon supported catalysts | pt |
| dc.subject | Catalytic wet air oxidation | pt |
| dc.subject | Olive mill wastewater | pt |
| dc.subject | Platinum and iridium catalysts | pt |
| dc.subject | Wastewater treatment | pt |
| dc.title | Catalytic wet air oxidation of olive mill wastewater | pt |
| dc.type | conference object | |
| dspace.entity.type | Publication | |
| oaire.citation.conferencePlace | Chania, Grécia | pt |
| oaire.citation.title | First European Conference on Environmental Applications of Advanced Oxidation Processes | pt |
| person.familyName | Gomes | |
| person.givenName | Helder | |
| person.identifier.ciencia-id | 6218-1E19-13EE | |
| person.identifier.orcid | 0000-0001-6898-2408 | |
| rcaap.rights | openAccess | pt |
| rcaap.type | conferenceObject | pt |
| relation.isAuthorOfPublication | 0eb96337-224a-4339-9918-334436fbbb99 | |
| relation.isAuthorOfPublication.latestForDiscovery | 0eb96337-224a-4339-9918-334436fbbb99 |