Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/16609
Registo completo
Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Machado, Manuela D. | - |
dc.contributor.author | Santos, Mónica S. F. | - |
dc.contributor.author | Gouveia, Cláudia | - |
dc.contributor.author | Soares, Helena M. V. M. | - |
dc.contributor.author | Soares, Eduardo V. | - |
dc.date.accessioned | 2012-01-26T15:58:27Z | - |
dc.date.available | 2012-01-26T15:58:27Z | - |
dc.date.issued | 2008 | - |
dc.identifier.citation | Machado, M. D., Santos, M. S. F., Gouveia, C., Soares, H. M. V. M., & Soares, E. V. (2008, May). Removal of heavy metals using a brewer’s yeast strain of Saccharomyces cerevisiae: The flocculation as a separation process. Bioresource Technology. Elsevier BV. http://doi.org/10.1016/j.biortech.2007.05.047 | - |
dc.identifier.issn | 0960-8524 | por |
dc.identifier.uri | https://hdl.handle.net/1822/16609 | - |
dc.description.abstract | In this work, a brewer’s yeast strain was used to remove heavy metals from a synthetic effluent. The solid–liquid separation process was carried out using the flocculation ability of the strain. The yeast strain was able to sediment in the presence of Cu2+, Ni2+, Zn2+, Cd2+ and Cr3+, which evidences that the flocculation can be used as a cheap and natural separation process for an enlarged range of industrial effluents. For a biomass concentration higher than 0.5 g/l, more than 95% of the cells were settled after 5 min; this fact shows that the auto-aggregation of yeast biomass is a rapid and efficient separation process. Cells inactivated at 45 °C maintain the sedimentation characteristics, while cells inactivated at 80 °C lose partially (40%) the flocculation. The passage of metal-loaded effluent through a series of sequential batches allowed, after the second batch, the reduction of the Ni2+concentration in solution for values below the legal limit of discharge of wastewater in natural waters (2 mg/l); this procedure corresponds to a removal of 91%. A subsequent batch had a marginal effect on Ni2+ removal (96%). Together, the results obtained suggest that the use of brewing flocculent biomass looks a promising alternative in the bioremediation of metal-loaded industrial effluents since the removal of the heavy metals and cell separation are simultaneously achieved. | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier | por |
dc.rights | restrictedAccess | por |
dc.subject | Bioremediation | por |
dc.subject | Yeast | por |
dc.subject | Heavy metals | por |
dc.subject | Flocculation | por |
dc.subject | Sedimentation | por |
dc.title | Removal of heavy metals using a brewer’s yeast strain of Saccharomyces cerevisiae: the flocculation as a separation process | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
sdum.publicationstatus | published | por |
oaire.citationStartPage | 2107 | por |
oaire.citationEndPage | 2115 | por |
oaire.citationIssue | 7 | por |
oaire.citationTitle | Bioresource Technology | por |
oaire.citationVolume | 99 | por |
dc.identifier.doi | 10.1016/j.biortech.2007.05.047 | por |
dc.identifier.pmid | 17631999 | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Bioresource Technology | por |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
3249.pdf Acesso restrito! | 609,5 kB | Adobe PDF | Ver/Abrir |