A model for heap bioleaching of chalcocite with heat balance: Mesophiles and moderate thermophiles

摘要: The interaction of mesophiles and moderate thermophiles (MT) in a 3-phase computational fluid dynamics model for heap bioleaching chalcocite is investigated. assumes that both bacterial types undergo the same death, attachment detachment processes, with different growth rate temperature dependency. allows an investigation how vary space time as conditions (such temperature) change. results are compared to case single type (mesophiles) from previous work, showing bottom-up top-down leaching fronts which develop also present here. front found move faster than only mesophiles, slower Both these effects due high gradient (due MT), higher associated evaporation condensation (and release or consumption latent heat) across respective fronts. addition MT longer period before overheating occurs, so there more initial stage. ambient inoculation method were varied show impact on leaching.