Insights into the enhancement mechanism coupled with adapted adsorption behavior from mineralogical aspects in bioleaching of copper-bearing sulfide ore by Acidithiobacillus sp.

Abstract

In this study, two typical bioleaching strains (A. ferrooxidansandA. thiooxidans) were employed for exploring the enhancement mechanism of the adapted adsorption behavior in the bioleaching of copper-bearing sulfide ore.

Synergistic catalytic effects of visible light and graphene on bioleaching of chalcopyrite

“…ferrooxidans strain (ATCC23270) purchased from American type culture collection was used in this study. The medium 9K constituted of (NH 4 ) 2 SO 4…”

“…Chalcopyrite (CuFeS 2 ), the most abundant copper sulde mineral on the earth, is the primary mineral source for copper extraction. [1][2][3][4] Until now, the main process for extracting copper from chalcopyrite is pyrometallurgy although hydrometallurgical processes are sometimes used. 5 However, these traditional processes have some shortcomings including the high emission of polluted gas mainly as SO 2 and high acid consumption and high costs.…”

Effective multi-metal removal from plant incineration ash via the combination of bioleaching and brine leaching

“…Bioleaching, as a low-cost and low-energy 'green technology', is a suitable alternative method to treat solid waste, and different metals are more easily recovered from bioleached residues or leachate. 15 Bioleaching mainly uses various microbes to dissolve metals, including acidophilic chemoautotrophic or heterotrophic bacteria or fungi. To date, bioleaching has been successfully employed to extract metals from sewage sludge, electronic waste, mine tailings etc [16][17][18] .…”

Specific mechanism of Acidithiobacillus caldus extracellular polymeric substances in the bioleaching of copper-bearing sulfide ore

“…thiooxidans and A . ferrooxidans [27]. The effects of the “non-contact” mechanism on community structure during chalcopyrite bioleaching by Acidithiobacillus sp.…”