A mathematical model for enargite bioleaching at 70℃ by Sulfolobus BC in shake-flasks has been constructed. The model included （1） the indirect leaching by Fe^3＋ and Fe^3＋ regeneration by suspended Sulfolobus, a...A mathematical model for enargite bioleaching at 70℃ by Sulfolobus BC in shake-flasks has been constructed. The model included （1） the indirect leaching by Fe^3＋ and Fe^3＋ regeneration by suspended Sulfolobus, and （2） the direct leaching by the attached Sulfolobus. The model parameters were optimized using genetic algorithm （GA）. Simulations of the ferric leaching, and bioleaching processes were done using this model. The dynamic changes of the concentrations of Cu^2＋, As^3＋, As^5＋, Fe^3＋ and/or Fe^2＋, as well as ferric-arsenate precipitation were accurately predicted.展开更多
基金Supported by the State Key Development Program for Basic Research of China （2004CB619202） and the National Natural Science Foundation of China （50174034, 30170026）.
文摘A mathematical model for enargite bioleaching at 70℃ by Sulfolobus BC in shake-flasks has been constructed. The model included （1） the indirect leaching by Fe^3＋ and Fe^3＋ regeneration by suspended Sulfolobus, and （2） the direct leaching by the attached Sulfolobus. The model parameters were optimized using genetic algorithm （GA）. Simulations of the ferric leaching, and bioleaching processes were done using this model. The dynamic changes of the concentrations of Cu^2＋, As^3＋, As^5＋, Fe^3＋ and/or Fe^2＋, as well as ferric-arsenate precipitation were accurately predicted.
