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

被引：11
|
作者：
Martins, Monica [1 ]
Taborda, Rita [1 ]
Silva, Goncalo [2 ]
Assuncao, Ana [1 ]
Matos, Antonio Pedro [3 ,4 ]
Costa, Maria Clara [1 ]
机构：
[1] Univ Algarve, Dept Quim & Farm, Fac Ciencias & Tecnol, Ctr Ciencias Mar CCMAR, P-8005139 Faro, Portugal
[2] Univ Algarve, Fac Ciencias & Tecnol, Ctr Biodiversidade Genomica Integrat & Func BioFI, P-8005139 Faro, Portugal
[3] Hosp Curry Cabral, Serv Anat Patol, Lisbon, Portugal
[4] Univ Lisbon, Fac Ciencias, Ctr Estudos Ambiente & Mar CESAM Polo Lisboa, P-1749016 Lisbon, Portugal
来源：
BIODEGRADATION | 2012年 / 23卷 / 05期
关键词：
Aluminum; Bioremediation; Dissimilatory sulphate-reducing bacteria; Sulphate; ACID-MINE DRAINAGE; TOXICITY; SPECIATION; REDUCTION;
D O I：
10.1007/s10532-012-9545-x
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
A highly Al-resistant dissimilatory sulphate-reducing bacteria community was isolated from sludge of the wetland of Urgeiri double dagger a 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.
引用
收藏
页码：693 / 703
页数：11
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