Topsoil is the preferred substrate for areas requiring rehabilitation after bauxite mining. However, topsoil is sometimes lacking and so there is a need to test the suitability of other, locally available substrates. In an abandoned bauxite mine in Southeastern Brazil, small patches of native vegetation spontaneously established in shallow depressions over weathered laterite, suggesting that gr...

In recent times, several new species of amphibians have been described from India. Many of these discoveries are from biodiversity hotspots or from within protected areas. We undertook amphibian surveys in human dominated landscapes outside of protected areas in south western region of India between years 2013-2015. We encountered a new species of Microhyla which is described here as Microhyla ...

The processing of laterite ore by pyrometallurgy requires high temperatures whereas the Atmospheric Acid Leaching (AAL) method can be performed below 100 ℃ although its nickel recovery is inconsistent. This research aims to determine effect sulfuric acid concentration on and after extract purification precipitation non-nickel metals. AAL was with an operating temperature 95 °C, time 5 hours, or...

Ferronickel products obtained from the traditional process used to treat limonite nickel laterite usually assay very low-grade Ni, only 3–5% Ni due high Fe/Ni ratio of laterite. This paper describes an investigation conducted upgrade laterites for preparation ferronickel by using selective reduction smelting technology. By means thermodynamic calculations and experiments, separation mechanism b...

Indonesia is a country that has abundant mineral resources, including nickel resources in laterite ore. Nickel demand risen significantly because of the need for precursors battery production. can be processed via hydrometallurgical route to obtain precursor by leaching ore with an acid solution produce nickel-rich or Pregnant Leach Solutions (PLS). This then precipitation base make its hydroxi...

Abstract Localised Multivariate Uniform Conditioning (LMUC) is a technique designed for spatially locating Selective Mining Unit (SMU) grades derived using (MUC) the assessment of recoverable resources. LMUC has advantage producing SMU estimates conforming to MUC panel-specific grade-tonnage curves while preserving spatial grade distribution at selective mining level. However, results have two ...