Aluminum and sulphate removal by a highly Al-resistant dissimilatory sulphate-reducing bacteria community. | - CCMAR -

Journal Article

TítuloAluminum and sulphate removal by a highly Al-resistant dissimilatory sulphate-reducing bacteria community.
Publication TypeJournal Article
AuthorsMartins, M, Taborda, R, Silva, G, Assunção, A, Matos, APedro, Costa, MClara
Year of Publication2012
JournalBiodegradation
Volume23
Questão5
Date Published2012 Sep
Pagination693-703
ISSN1572-9729
Palavras-chaveAluminum, Bacteria, Biodegradation, Environmental, Chemical Precipitation, Microbial Consortia, Molecular Sequence Data, Oxidation-Reduction, Phylogeny, Polymorphism, Restriction Fragment Length, Sulfates, Sulfides, Waste Disposal, Fluid
Abstract

A highly Al-resistant dissimilatory sulphate-reducing bacteria community was isolated from sludge of the wetland of Urgeiriça mine (community W). This community showed excellent sulphate removal at the presence of Al³⁺. After 27 days of incubation, 73, 86 and 81% of sulphate was removed in the presence of 0.48, 0.90 and 1.30 mM of Al³⁺, respectively. Moreover, Al³⁺ was simultaneously removed: 55, 85 and 78% of metal was removed in the presence of 0.48, 0.90 and 1.30 mM of Al³⁺, respectively. The dissociation of aluminium-lactate soluble complexes due to lactate consumption by dissimilatory sulphate-reducing bacteria can be responsible for aluminum removal, which probably precipitates as insoluble aluminium hydroxide. Phylogenetic analysis of 16S rRNA gene showed that this community was mainly composed by bacteria closely related to Desulfovibrio desulfuricans. However, bacteria affiliated to Proteus and Ralstonia were also present in the community.

DOI10.1007/s10532-012-9545-x
Sapientia

http://www.ncbi.nlm.nih.gov/pubmed/22367464?dopt=Abstract

Alternate JournalBiodegradation
PubMed ID22367464