Dataset for the thermodynamic simulation of the dissolution behaviour of elemental tellurium and tellurium dioxide in alkaline cyanide solutions.

It is necessary to simulate the thermodynamics of the Te/TeO-CN-HO systems to interpret the dissolution behaviour of elemental tellurium and tellurium dioxide in alkaline cyanide solutions. Below are the data employed to simulate the equilibrium diagrams presented in the article entitled "Dissolution behaviour of elemental tellurium and tellurium dioxide in alkaline cyanide solutions". Most of the reactions are available in the Hydra database of MEDUSA© software along with their logarithms to the base 10 of the equilibrium constants (i.

Aerobic processes for bioleaching manganese and silver using microorganisms indigenous to mine tailings.

Mining wastes containing appreciable concentrations of silver are considered alternative sources for metal extraction, although these wastes are often refractory due to the presence of manganese oxides. The high cost and/or environmental impact of the hydrometallurgical and pyrometallurgical extraction processes make it necessary to search for biotechnological processes for the solubilization of manganese compounds. This paper describes the characterization of chemoorganotrophic microorganisms indigenous to the tailings of a silver mine located in Coahuila, México, regarding their capability to remove manganese and silver present in these residues by lixiviation.

Synthesis, structural characterization and Cu(ii) adsorption behavior of manganite (γ-MnOOH) nanorods.

New alternatives for the removal of transition metal ions that present an environmental risk are required. The chemical adsorption of these ions on surfaces with chemisorbent properties represents a promising area of research. In this work, manganite (γ-MnOOH) nanorods were synthesized, with a surface area of 20.

Blast furnace residues for arsenic removal from mining-contaminated groundwater.

In this work, blast furnace (BF) residues were well characterized and then evaluated as an adsorbent material for arsenic removal from a mining-contaminated groundwater. The adsorption process was analysed using the theories of Freundlich and Langmuir. BF residues were found to be an effective sorbent for As (V) ions.

Destruction of cyanide waste solutions using chlorine dioxide, ozone and titania sol.

Increasingly, there are severe environmental controls in the mining industry. Because of lack of technological advances, waste management practices are severely limited. Most of the wastes in the milling industrial effluents are known to contain cyanides and it is recognized that after extraction and recovery of precious metals, substantial amounts of cyanide are delivered to tailings ponds.