Key Microbes and Metabolic Potentials Contributing to Cyanide Biodegradation in Stirred-Tank Bioreactors Treating Gold Mining Effluent

Doyun Shin, Jeonghyun Park, Hyunsik Park, Jae Chun Lee, Min Seuk Kim, Jaeheon Lee

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Microbial community and metabolic potential changes in a biological wastewater treatment reactor were investigated using phylogenetic and functional profile analysis from 16S rRNA-gene-based pyrosequencing. Stirred-tank bioreactors fed by cyanide-containing synthetic solutions were inoculated with a sewage sludge and the cyanide-degrading microbial consortium. A better cyanide degradation was observed in the reactors containing the phylum Proteobacteria, but lower efficiency was observed when Firmicutes and Bacteroidetes were dominant. This study shows the important role of phylum Proteobacteria for the cyanide-containing wastewater treatment in the gold processing plant and contributes the fundamentals about the microbial community exposed to the cyanide.

Original languageEnglish (US)
Pages (from-to)85-95
Number of pages11
JournalMineral Processing and Extractive Metallurgy Review
Volume41
Issue number2
DOIs
StatePublished - Mar 3 2020

Keywords

  • Cyanide
  • Firmicutes
  • microbial community
  • PiCRUSt
  • Proteobacteria
  • pyrosequencing

ASJC Scopus subject areas

  • Chemistry(all)
  • Geotechnical Engineering and Engineering Geology
  • Mechanical Engineering
  • Economic Geology

Fingerprint Dive into the research topics of 'Key Microbes and Metabolic Potentials Contributing to Cyanide Biodegradation in Stirred-Tank Bioreactors Treating Gold Mining Effluent'. Together they form a unique fingerprint.

Cite this