SCI和EI收录∣中国化工学会会刊

›› 2008, Vol. 16 ›› Issue (5): 785-790.

• BIOTECHNOLOGY & BIOENGINEERING • Previous Articles     Next Articles

Modeling and Simulation of Enargite Bioleaching

SONG Jian1, LIN Jianqun1, GAO Ling2, LIN Jianqiang1, QU Yinbo1   

  1. 1. State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, China;
    2. School of Information Science & Engineering, Shandong Normal University, Jinan 250014, China
  • Received:2007-11-17 Revised:2008-06-16 Online:2008-10-28 Published:2008-10-28
  • Supported by:
    the State Key Development Program for Basic Research of China(2004CB619202);the National Natural Science Foundation of China(50174034,30170026).

Modeling and Simulation of Enargite Bioleaching

宋健1, 林建群1, 高玲2, 林建强1, 曲音波1   

  1. 1. State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, China;
    2. School of Information Science & Engineering, Shandong Normal University, Jinan 250014, China
  • 通讯作者: LIN Jianqun,E-mail:jianqianglin@sdu.edu.cn
  • 基金资助:
    the State Key Development Program for Basic Research of China(2004CB619202);the National Natural Science Foundation of China(50174034,30170026).

Abstract: 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 Fe3+ and Fe3+ 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 CuFe2+,AsFe3+,AsFe5+,FeFe3+ and/or FeFe2+,as well as ferric-arsenate precipitation were accurately predicted.

Key words: bioleaching, ferric leaching, enargite, modeling, arsenic, redox potential

摘要: 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 Fe3+ and Fe3+ 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 CuFe2+,AsFe3+,AsFe5+,FeFe3+ and/or FeFe2+,as well as ferric-arsenate precipitation were accurately predicted.

关键词: bioleaching, ferric leaching, enargite, modeling, arsenic, redox potential