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http://hdl.handle.net/10773/22651
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DC Field | Value | Language |
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dc.contributor.author | Queirós, Diogo | pt |
dc.contributor.author | Sousa, Rita | pt |
dc.contributor.author | Pereira, Susana | pt |
dc.contributor.author | Serafim, Luísa Seuanes | pt |
dc.date.accessioned | 2018-03-15T12:33:17Z | - |
dc.date.available | 2018-03-15T12:33:17Z | - |
dc.date.issued | 2017-05-12 | - |
dc.identifier.issn | 2311-5637 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/22651 | - |
dc.description.abstract | In this work, hardwood sulfite spent liquor (HSSL)—a by-product from a pulp and paper industry—was used as substrate to produce short-chain organic acids (SCOAs) through acidogenic fermentation. SCOAs have a broad range of applications, including the production of biopolymers, bioenergy, and biological removal of nutrients from wastewaters. A continuous stirred tank reactor (CSTR) configuration was chosen to impose selective pressure conditions. The CSTR was operated for 88 days at 30 °C, without pH control, and 1.76 days of hydraulic and sludge retention times were imposed. The culture required 46 days to adapt to the conditions imposed, reaching a pseudo-steady state after this period. The maximum concentration of SCOAs produced occurred on day 71—7.0 g carbon oxygen demand (COD)/L that corresponded to a degree of acidification of 36%. Acetate, propionate, butyrate, valerate, and lactate were the SCOAs produced throughout the 88 days, with an average proportion of 59:17:19:1.0:4.0%, respectively. | pt |
dc.language.iso | eng | pt |
dc.publisher | MDPI | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/5876/147332/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F87758%2F2012/PT | pt |
dc.rights | openAccess | por |
dc.subject | Short-chain organic acids | pt |
dc.subject | Hardwood sulfite spent liquor | pt |
dc.subject | Activated sludge | pt |
dc.subject | Acidogenic fermentation | pt |
dc.subject | Mixed microbial cultures | pt |
dc.title | Valorization of a Pulp Industry By-Product through the Production of Short-Chain Organic Acids | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 1 | pt |
degois.publication.issue | 2 | pt |
degois.publication.lastPage | 11 | pt |
degois.publication.title | Fermentation | pt |
degois.publication.volume | 3 | pt |
dc.identifier.doi | 10.3390/fermentation3020020 | pt |
Appears in Collections: | CICECO - Artigos DQ - Artigos |
Files in This Item:
File | Description | Size | Format | |
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fermentation-03-00020.pdf | 1.38 MB | Adobe PDF | View/Open |
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