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DatoValore
TitleSustainable Conversion of Fat, Oil and Grease Wastes Produced by Municipal Wastewater Treatment Plant into Biofuels
AbstractFat, oil and grease produced by oil/water separation at the wastewater treatment plant of Bari West (Southern Italy) were taken, characterized and converted. After chemical activation of this fatty fraction, with the aim of converting the starting calcium soaps into the respective free fatty acids, a direct esterification was carried out under very mild conditions. Working at 345 K under atmospheric pressure, the thermodynamic conversion (more than 90%) of the free fatty acids into the respective methyl esters was obtained in less than 2 h, by using AlCl3·6H2O as catalyst. Fundamental parameters, such as kinetic and equilibrium constants at different temperatures and activation energy correlated to the use of this catalyst, were also calculated. The biodiesel was purified with a distillation under vacuum, providing a final product conformed to the EN14214 requirements. The convenience of the overall process in terms of costs (0.45 EUR L-1) and specific thermal energy supply (5.02 MJ KgFAMEs-1) make such a process a really sustainable and effective example of valorization of a waste.
Source2nd IWA Specialized International Conference, EcoSTP2014, EcoTechnologies for Wastewater Treatment, Verona, 23-27 June 2014
KeywordsUW-FOGBiodieselbio-wastes valorizationWWTP wastebiorefiningAlCl3·6H2O
Year2014
TypeContributo in atti di convegno
AuthorsC. Pastore, A. Lopez and G. Mascolo
Text314521 2014 UW FOG Biodiesel bio wastes valorization WWTP waste biorefining AlCl3·6H2O Sustainable Conversion of Fat, Oil and Grease Wastes Produced by Municipal Wastewater Treatment Plant into Biofuels C. Pastore, A. Lopez and G. Mascolo CNR IRSA, via De Blasio 5, 70132, Bari, Italy Fat, oil and grease produced by oil/water separation at the wastewater treatment plant of Bari West Southern Italy were taken, characterized and converted. After chemical activation of this fatty fraction, with the aim of converting the starting calcium soaps into the respective free fatty acids, a direct esterification was carried out under very mild conditions. Working at 345 K under atmospheric pressure, the thermodynamic conversion more than 90% of the free fatty acids into the respective methyl esters was obtained in less than 2 h, by using AlCl3·6H2O as catalyst. Fundamental parameters, such as kinetic and equilibrium constants at different temperatures and activation energy correlated to the use of this catalyst, were also calculated. The biodiesel was purified with a distillation under vacuum, providing a final product conformed to the EN14214 requirements. The convenience of the overall process in terms of costs 0.45 EUR L 1 and specific thermal energy supply 5.02 MJ KgFAMEs 1 make such a process a really sustainable and effective example of valorization of a waste. 9788869250026 2nd IWA Specialized International Conference, EcoSTP2014, EcoTechnologies for Wastewater Treatment Verona 23 27 June 2014 Internazionale Contributo Contributo in atti di convegno antonio.lopez LOPEZ ANTONIO carlo.pastore PASTORE CARLO giuseppe.mascolo MASCOLO GIUSEPPE