DOI: 10.1016/j.marpolbul.2015.06.040
Scopus记录号: 2-s2.0-84956586646
论文题名: Bioleaching of multiple metals from contaminated sediment by moderate thermophiles
作者: Gan M. ; Jie S. ; Li M. ; Zhu J. ; Liu X.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2015
卷: 97, 期: 2018-01-02 起始页码: 47
结束页码: 55
语种: 英语
英文关键词: Bioleaching
; Community dynamic
; Leaching model
; Moderate thermophiles
; Multiple metals
Scopus关键词: Biochemistry
; Bioleaching
; Leaching
; Lead
; Manganese
; Pyrites
; Solubility
; Substrates
; Community dynamics
; Contaminated sediment
; Correlation analysis
; Leaching models
; Moderate thermophiles
; Moderately thermophilic
; Multiple metals
; Utilization of substrate
; Metals
; aluminum
; arsenic
; cadmium
; lead
; manganese
; mercury
; metal
; pyrite
; sulfur
; zinc
; iron
; metal
; sulfide
; water pollutant
; acidification
; bioavailability
; bioremediation
; community dynamics
; element mobility
; metal
; microbial community
; sediment pollution
; solubilization
; thermophilic bacterium
; acidification
; Acidithiobacillus caldus
; Article
; bioleaching
; cell density
; chemical analysis
; community dynamics
; correlation analysis
; fraction analysis
; nonhuman
; oxidation reduction potential
; pH
; population abundance
; sediment
; solubilization
; statistical model
; Sulfobacillus thermotolerans
; thermophile
; Acidithiobacillus
; bacterium
; chemistry
; genetics
; metabolism
; microbial consortium
; microbiology
; pharmacokinetics
; physiology
; sediment
; Streptomyces
; theoretical model
; water pollutant
; Acidithiobacillus
; Bacteria
; Geologic Sediments
; Hydrogen-Ion Concentration
; Iron
; Metals
; Microbial Consortia
; Models, Theoretical
; Streptomyces
; Sulfides
; Sulfur
; Water Pollutants, Chemical
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: A moderately thermophilic consortium was applied in bioleaching multiple metals from contaminated sediment. The consortium got higher acidification and metals soubilization efficiency than that of the pure strains. The synergistic effect of the thermophilic consortium accelerated substrates utilization. The utilization of substrate started with sulfur in the early stage, and then the pH declined, giving rise to making use of the pyrite. Community dynamic showed that A. caldus was the predominant bacteria during the whole bioleaching process while the abundance of S. thermotolerans increased together with pyrite utilization. Solubilization efficiency of Zn, Cu, Mn and Cd reached 98%, 94%, 95%, and 89% respectively, while As, Hg, Pb was only 45%, 34%, 22%. Logistic model was used to simulate the bioleaching process, whose fitting degree was higher than 90%. Correlation analysis revealed that metal leaching was mainly an acid solubilization process. Fraction analysis revealed that metals decreased in mobility and bioavailability. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/86260
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: School of Minerals Processing and Bioengineering, Central South University, Changsha, China; Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha, China
Recommended Citation:
Gan M.,Jie S.,Li M.,et al. Bioleaching of multiple metals from contaminated sediment by moderate thermophiles[J]. Marine Pollution Bulletin,2015-01-01,97(2018-01-02)