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Responses of zinc recovery to temperature and mineral composition during sphalerite bioleaching process

Xiao, Yunhua ; Liu, Xueduan ; Fang, Jun ; Liang, Yili ; Zhang, Xian ; Meng, Delong ; Yin, Huaqun

AMB Express, 2017-10, Vol.7 (1), p.190-190, Article 190 [Periódico revisado por pares]

Berlin/Heidelberg: Springer Berlin Heidelberg

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Título:
Responses of zinc recovery to temperature and mineral composition during sphalerite bioleaching process
Autor: Xiao, Yunhua ; Liu, Xueduan ; Fang, Jun ; Liang, Yili ; Zhang, Xian ; Meng, Delong ; Yin, Huaqun
Assuntos: Bacterial leaching ; Biomedical and Life Sciences ; Biotechnology ; Communities ; Community structure ; Energy resources ; Energy sources ; Gene sequencing ; Iron ; Leaching ; Life Sciences ; Materials recovery ; Microbial community ; Microbial Genetics and Genomics ; Microbiology ; Microorganisms ; Organic matter ; Original ; Original Article ; Original mineral compositions ; pH effects ; rRNA 16S ; Sphalerite ; Sulfur ; Temperature ; Temperature effects ; Temperature gradients ; Zinc ; Zinc leaching efficiency ; Zincblende
É parte de: AMB Express, 2017-10, Vol.7 (1), p.190-190, Article 190
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: Temperature and energy resources (e.g., iron, sulfur and organic matter) usually undergo dynamic changes, and play important roles during industrial bioleaching process. Thus, it is essential to investigate their synergistic effects and the changes of their independent effects with simultaneous actions of multi-factors. In this study, we explored the synergistic effects of temperature and original mineral compositions (OMCs, energy resources) on the sphalerite bioleaching process. The microbial community structure was monitored by 16S rRNA gene sequencing technology and showed clear segregation along temperature gradients and Shannon diversity decreased at high temperature. On the contrary, the physicochemical parameters (pH and [Fe 3+ ]) in the leachate were significantly affected by the OMCs. Interestingly, the influence of temperature on zinc recovery was greater at relatively simpler OMCs level, whereas the influence of OMCs was stronger at lower temperature. In addition, using [Fe 3+ ], pH, relative abundances of dominant OTUs of microbial community and temperature as variable parameters, several models were constructed to predict zinc leaching efficiency, providing a possibility to predict the metal recovery efficiency under temperature change and variable energy resources.
Editor: Berlin/Heidelberg: Springer Berlin Heidelberg
Idioma: Inglês

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Responses of zinc recovery to temperature and mineral composition during sphalerite bioleaching process

Xiao, Yunhua ; Liu, Xueduan ; Fang, Jun ; Liang, Yili ; Zhang, Xian ; Meng, Delong ; Yin, Huaqun

Berlin/Heidelberg: Springer Berlin Heidelberg

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