A model for heap bioleaching of chalcocite with heat balance: Bacterial temperature dependence

作者: M.J. Leahy , M.R. Davidson , M.P. Schwarz

DOI: 10.1016/J.MINENG.2005.07.003

关键词: Thermodynamic processBioleachingLiquid flowChalcociteMetallurgyHeap (data structure)Heat balanceHeat flowChemistryControl and Systems EngineeringGeotechnical Engineering and Engineering GeologyMechanical engineeringGeneral chemistry

摘要: Abstract A three-phase computational fluid dynamics model for heap bioleaching of chalcocite is investigated to identify and understand the thermodynamic processes in a heap. The study uses an existing one-dimensional liquid flow, bacterial transport (including attachment/detachment bacteria ore particles), depletion copper-sulphide, coupled with heat flow heap, temperature dependence. used investigate aspects balance regard dependence concentration temperatures reached typical found leach top–down manner, due ability incoming cool at top, allow grow under optimal conditions. As top leaches, there drops progressively cools as leaching front moves down through whole bed.

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