The dissolution and passivation mechanism of chalcopyrite in bioleaching: An overview

TL;DR: The idea that chalcopyrite leaching is hindered by a passivation layer is challenged in this paper, where it is shown that in alkaline solutions with a complexing agent there is no passivating effect.

TL;DR: The results indicated that jarosite and visible light could significantly accelerate chalcopyrite biodissolution, thus releasing more copper ions, iron ions and producing more acid, which suggests enhanced generation of AMD under these conditions.

TL;DR: The results indicate that silver ion significantly enhanced chalcopyrite biodissolution, thereby releasing more copper ion, and this indicates that the release of copper ion from chalCopyrite to the environment was increased under these conditions.

TL;DR: This paper reviews electrokinetic remediation (EKR) for heavy metal removal in low-permeability soil, discussing limitations, solutions, and prospection, including enhanced technologies, energy consumption, and engineering design, with implications for future technology development.

TL;DR: In this article, the authors describe acid mine drainage generation and its associated technical issues, and present three basic levels: primary prevention of acid-generating process, secondary control, and tertiary control, or the collection and treatment of effluent.

TL;DR: In this paper, the authors show that the dominance of At. ferrooxidans or Leptospirillum in mesophilic leaching habitats is highly likely to result from differences in their biochemical iron(II) oxidation pathways, especially the involvement of rusticyanin.

TL;DR: The following report is concerned with the ways in which solid or adsorbing surfaces may influence bacterial activity.

TL;DR: The main focus is on heap bioleaching of whole ores, and the development of models to describe heap and dump processes that can be applied in the design phase as well as to optimise metal extraction.