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dc.contributor.authorFernández Rodríguez, Javier
dc.contributor.authorGarcía Núñez, Araceli
dc.contributor.authorCoz Fernández, Alberto 
dc.contributor.authorLabidi, Jalel
dc.contributor.otherUniversidad de Cantabriaes_ES
dc.date.accessioned2017-02-17T14:51:09Z
dc.date.available2017-02-17T14:51:09Z
dc.date.issued2015
dc.identifier.isbn978-88-95608-36-5
dc.identifier.issn1974-9791
dc.identifier.issn2283-9216
dc.identifier.otherCTQ2013-41246-Res_ES
dc.identifier.urihttp://hdl.handle.net/10902/10363
dc.description.abstractSpent sulphite liquor (SSL) is the main byproduct of acid sulphite pulping. Its main components are lignosulphonates (LS) and monomeric sugars. SSL is typically intended as binder, emulsifier or additive in concretes due to its high amount of LS. Sugars can be converted into high value-added products such as xylitol, PHB or biofuels among others; by means of fermentation processes. However, a separation step to remove the compounds that can act as fermentation inhibitors, as LS, is needed. Membrane technology allows the separation of sugars and LS from the SSL because of their different size of molecular weight. In the present study, ceramic membranes with different cut-offs (15 kDa, 5 kDa and 1 kDa) were used. 15 kDa membrane offered the best results according to LS concentration in the retentate stream, 5 kDa membrane the highest LS removal in permeate stream, and 1 kDa membrane the minimum sugar losses in the permeate stream. Because of this, the combination of the three membranes in a series system was proposed. In this way, an increase in LS removal in the final permeate was achieved (72.78 %), but also an increase in the sugar losses (26.80 %). Hence, further studies will determine the optimal configuration system of this process.es_ES
dc.description.sponsorshipAuthors would like to thank the Department of Education, Universities and Investigation of the Basque Government (Postdoctoral Development Program and project IT672-13) and the Spanish Ministry of Economy and Competitiveness (CTQ2013-41246-R) for financially supporting this work.es_ES
dc.format.extent6 p.es_ES
dc.language.isoenges_ES
dc.publisherAIDICes_ES
dc.rights© AIDICes_ES
dc.sourceChemical Engineering Transactions, 2015, 45, 553-558es_ES
dc.source18th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction (PRES), Kuching, Malasya, 2015es_ES
dc.titleFractionation of spent sulphite liquor into monomeric sugars and lignosulphonates by an ultrafiltration series systemes_ES
dc.typeinfo:eu-repo/semantics/conferenceObjectes_ES
dc.rights.accessRightsopenAccesses_ES
dc.identifier.DOI10.3303/CET1545093
dc.type.versionpublishedVersiones_ES


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