Bioleaching of arsenic from highly contaminated mine tailings using Acidithiobacillus thiooxidans

Lee, Eunseong; Han, Yosep; Park, Jeonghyun; Hong, Jeongsik; Silva, René A.; Kim, Seungkon; Kim, Hyun-Jung

doi:10.1016/j.jenvman.2014.08.019

Cited by 51 publications

(19 citation statements)

References 40 publications

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“…Bioleaching of secondary sources such as spent catalyst, fly ash, and mine tailings has been found promising [9,[101][102][103][104][105]. However, the effect of ultrasound has only been examined on bioleaching of low grade ores and bottom ash.…”

Section: Future Directions In Sonobioleachingmentioning

confidence: 99%

A Review of the Application of Ultrasound in Bioleaching and Insights from Sonication in (Bio)Chemical Processes

Vyas

Ting

2017

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Chemical and biological leaching is practiced on a commercial scale for the mining of metals from ores. Although bioleaching is an environmentally-friendly alternative to chemical leaching, one of the principal shortcomings is the slow rate of leaching which needs to be addressed. The application of ultrasound in bioleaching, termed sonobioleaching, is a technique which has been reported to increase the rate and extent of metal extraction. This article reviews efforts made in the field of sonobioleaching. Since bioleaching is effectively a biological and chemical process, the effects of sonication on chemical leaching/reactions and biological processes are also reviewed. Although sonication increases metal extraction by increasing the metabolite production and enhanced mixing at a micro scale, research is limited in terms of the microorganisms explored. This paper highlights some shortcomings and limitations of existing techniques, and proposes directions for future research.

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Section: Future Directions In Sonobioleachingmentioning

confidence: 99%

A Review of the Application of Ultrasound in Bioleaching and Insights from Sonication in (Bio)Chemical Processes

Vyas

Ting

2017

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“…To determine the zeta potential of the A. ferrooxidans cells, the electrophoretic mobility was first measured at 25°C using a zetapotential analyzer (ELS-Z, Otsuka, Hirakata, Japan) following the previously reported procedure [26,27]. Briefly, bacterial suspension was prepared in DSMZ medium 882 with an absorbance value between 0.25 and 0.3 at 546 nm (BioSpec-mini, Shimadzu Corp., Kyoto, Japan).…”

Section: Zeta Potential Measurementsmentioning

confidence: 99%

Influence of bacterial adhesion on copper extraction from printed circuit boards

Silva

Park

Lee

et al. 2015

Separation and Purification Technology

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“…Therefore, bioleaching techniques using microorganisms draw attention of many researchers and practitioners as an alternative method. For instance, ex-situ or on-site bioleaching technologies (e.g., heap and tank bioleaching) applied to contaminated sediments utilize acidophilic chemolithoautotrophic bacteria -which are able to oxidize sulfur in acidic conditions and to solubilize the heavy metals contained within the sulfide fraction of the sediments (Kumar & Nagendran, 2009;Lee et al, 2015;Pradhan, Nathsarma, Rao, Sukla, & Mishra, 2008).…”

Section: Introductionmentioning

confidence: 99%

Experimental study on bioleaching of paddy soil in the vicinity of refinery site contaminated with copper, lead, and arsenic using sulfur-oxidizing bacteria

Han

Lee

2015

Geosystem Engineering

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Applicability of bioleaching of Cu, Pb, and As from paddy soil in the vicinity of a refinery site was experimentally examined using a sulfur-oxidizing bacterium, Acidithiobacillus thiooxidans. As a result of aqua regia digestion, the concentrations of Cu (187 mg/kg), Pb (380 mg/kg), and As (107 mg/kg) in the studied soil exceeded the environmental criteria regulated by the Korean government. Batch experiments were performed to investigate the removal efficiency of the heavy metals according to various sulfur supply (0%, 0.1%, 0.5%, and 1%). All microbial experimental sets amended with sulfur showed the enhanced amount of heavy metals extracted, which showed the extraction processes require sulfur addition for proper metabolism of the bacterium. Among various amounts of sulfur addition, 1% (w/v) sulfur addition to the soil inoculated with bacterium led to the removal efficiencies of 67.6%, 25.8%, and 53.3% for Cu, Pb, and As, respectively. The relatively low removal efficiency of Pb resulted from formation of insoluble PbSO 4 precipitate. As a result of sequential extraction for the treated soil, most metals were found to exist as a highly stable fraction which is recalcitrant against change of the surrounding environment.

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Bioleaching of arsenic from highly contaminated mine tailings using Acidithiobacillus thiooxidans

Cited by 51 publications

References 40 publications

A Review of the Application of Ultrasound in Bioleaching and Insights from Sonication in (Bio)Chemical Processes

A Review of the Application of Ultrasound in Bioleaching and Insights from Sonication in (Bio)Chemical Processes

Influence of bacterial adhesion on copper extraction from printed circuit boards

Experimental study on bioleaching of paddy soil in the vicinity of refinery site contaminated with copper, lead, and arsenic using sulfur-oxidizing bacteria

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