Microbial activity and biodiversity responding to contamination of metal(loid) in heterogeneous nonferrous mining and smelting areas

Jian li Liu, Jun Yao, Chao Lu, Hao Li, Zi fu Li, Robert Duran, Geoffrey Sunahara, V. Mihucz

Research output: Contribution to journalArticle

Abstract

The combined contamination of nonferrous metal(loid) mining and smelting areas is a global issue, in need of urgent management. To our knowledge, this is the first report of microbial activities by microcalorimetry in specific nonferrous metal(loid) tailings with oligonutrition and high contents of toxic metal(loid)s. Dynamics of bacterial diversity were also characterized. Here we show that tailings had low microbial activities (P max = 64.1–331 μW g −1 ), which were accelerated by the presence of dipotassium phosphate (P max = 346–856 μW g −1 ), as measured by microcalorimetry. Frequent detection of S- and metal-resistant related genera and differences of Thiobacillus and Acidithiobacillus abundances indicated that the tailings were in an early stage of acidification. It has been further confirmed by the presence of a weak acid environment and secondary sulfur associated minerals, such as Sb 2 S 3 , FeAsS, FeS 2 , and CuFeS 2 . During the acidification process, phosphate, metal(loid)s, and microbial activity were correlated to the bacterial communities. It is suggested that the bacterial communities have metabolic capacities with a high potential for the use in management processes of multi-contaminated nonferrous metalliferous tailings.

Original languageEnglish
Pages (from-to)659-667
Number of pages9
JournalChemosphere
DOIs
Publication statusPublished - Jul 1 2019

Fingerprint

Biodiversity
Smelting
Tailings
smelting
tailings
microbial activity
Contamination
Metals
biodiversity
Nonferrous metals
Acidification
metal
acidification
Phosphates
phosphate
Acidithiobacillus
Poisons
Thiobacillus
Sulfur
Minerals

Keywords

  • Bacterial diversity
  • Microcalorimetry
  • Multi contamination
  • Sequencing

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Chemistry(all)
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

Microbial activity and biodiversity responding to contamination of metal(loid) in heterogeneous nonferrous mining and smelting areas. / Liu, Jian li; Yao, Jun; Lu, Chao; Li, Hao; Li, Zi fu; Duran, Robert; Sunahara, Geoffrey; Mihucz, V.

In: Chemosphere, 01.07.2019, p. 659-667.

Research output: Contribution to journalArticle

Liu, Jian li ; Yao, Jun ; Lu, Chao ; Li, Hao ; Li, Zi fu ; Duran, Robert ; Sunahara, Geoffrey ; Mihucz, V. / Microbial activity and biodiversity responding to contamination of metal(loid) in heterogeneous nonferrous mining and smelting areas. In: Chemosphere. 2019 ; pp. 659-667.
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