Anaerobic removal of 1-methoxy-2-propanol under ambient temperature in an EGSB reactor
NAGIOS: RODERIC FUNCIONANDO

Anaerobic removal of 1-methoxy-2-propanol under ambient temperature in an EGSB reactor

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Anaerobic removal of 1-methoxy-2-propanol under ambient temperature in an EGSB reactor

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dc.contributor.author Lafita Lopez, Carlos
dc.contributor.author Peñarrocha Oltra, Josep Manuel
dc.contributor.author Gabaldón García, Carmen
dc.date.accessioned 2015-11-24T09:42:48Z
dc.date.available 2015-11-24T09:42:48Z
dc.date.issued 2015
dc.identifier.uri http://hdl.handle.net/10550/48479
dc.description.abstract Two laboratory-scale expanded granular sludge bed (EGSB) reactors were operated at 18 and 25 C, respectively, for the treatment of synthetic wastewater composed of ethanol and 1-methoxy-2-propanol (M2P) in a mass ratio of 4:1. Reactors were operated first with continuous wastewater supply and after with discontinuous substrate supply (5 days a week, 16 h a day) to simulate shift working conditions. Under continuous wastewater supply chemical oxygen demand (COD), removal efficiency higher than 95 % was achieved at the end of the trial applying organic loading rates (OLR) of 29 and 43 kg COD m-3 day-1 at 18 and 25 C; thus, corresponding to M2P OLR of 6.4 and 9.3 kg COD m-3 day-1, respectively. During intermittent supply of substrate, good performance was recorded at both temperatures with an OLR of 30 kg COD m-3 day-1 (M2P OLR of 6.6 kg COD m-3 day-1). After 56 h without substrate supply, a decline in methane yield of 15¿30 % was observed due to the deactivation of the biomass. Specific methanogenic activity (SMA) assays were carried out at the end of the experiments. SMA values using 1-methoxy-2-propanol as substrate were 24.3 and 7.8 ml CH4 gVSS-1 day-1 at 25 C and at 18 C, respectively. This is the first attempt to investigate the removal of 1-methoxy-2-propanol by EGSB reactors.
dc.relation.ispartof Bioprocess and Biosystems Engineering, 2015, vol. 38, num. 11, p. 2137-2146
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Lafita, Carlos Peñarrocha Oltra, Josep Manuel Gabaldón García, Carmen 2015 Anaerobic removal of 1-methoxy-2-propanol under ambient temperature in an EGSB reactor Bioprocess and Biosystems Engineering 38 11 2137 2146
dc.subject Química
dc.title Anaerobic removal of 1-methoxy-2-propanol under ambient temperature in an EGSB reactor
dc.type info:eu-repo/semantics/article
dc.date.updated 2015-11-24T09:42:49Z
dc.identifier.doi http://dx.doi.org/10.1007/s00449-015-1453-0
dc.identifier.idgrec 107540

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