细菌堆浸中流动反应传热耦合过程数值模拟分析

吴爱祥; 刘金枝; 尹升华; 王洪江

doi:10.3879/j.issn.1000-0887.2010.12.001

细菌堆浸中流动反应传热耦合过程数值模拟分析

doi: 10.3879/j.issn.1000-0887.2010.12.001

基金项目: 国家自然科学基金(重点)资助项目(50934002);国家自然科学基金资助项目(50774011);中国博士后科学基金资助项目(20090450014);博士点基金资助项目(20070008038)

详细信息

作者简介:
吴爱祥(1963- ),男,湖北仙桃人,教授,博士,博士生导师(E-mail:wuaixiang@126.com);刘金枝,副教授,博士(联系人.E-mail:jzliu@shou.edu.cn).

中图分类号: TD953
计量
- 文章访问数: 1720
- HTML全文浏览量: 158
- PDF下载量: 973
- 被引次数: 0
出版历程
- 收稿日期: 1900-01-01
- 修回日期: 2010-10-09
- 刊出日期: 2010-12-15

Analysis of Coupled Flow-Reaction With Heat Transfer in Heap Bioleaching Processes

School of Civil and Environment Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China;

摘要

摘要: 针对辉铜矿微生物浸出过程进行数学建模，利用ComsolMultiphysics软件对浸堆中热量传递、氧气流动、目的金属离子分布以及氧化转化率等进行数值模拟分析．结果表明：沿堆体斜坡边界处氧的浓度较大，而在堆的中央部分，氧气的浓度非常小，导致这部分区域浸出反应缓慢；沿浸堆边坡处的温度偏低，温度最高的部分在底部区域附近靠近边坡位置处，且温度升高值超过6℃；矿堆底部靠近边坡区域目的金属离子浓度最高；靠近底部和斜坡部分，浸出反应速率快、氧化转化率高．矿堆的其余部分，因氧浓度低，导致浸出反应速率缓慢、氧化转化率低．
- 堆浸 /
- 流动反应传热耦合模型 /
- 细菌浸出 /
- 数值模拟
Abstract: A mathem aticalmodel for heap bioleaching was developed to analyze heat transfer,oxygen flow,targetions distribution and oxidation leaching rate in the heap,and the model equations were solved by Comsol Multiphysics software.The numerical simulation results show:the concentration of oxygen is comparatively higher along the boundary of the slope,and lower in the center part where leaching rate is slow;the temperature is comparatively low along the slope and the highest along the bottom region near the slope,and the difference is more than 6℃;the concentration of target mentalions is highest in the bottom region near the slope;the oxidation leaching rate is bigger in the bottom and slope part with quicker reaction rate,and comparatively smaller in the restpart with lower oxygen concen tration.
- heap leaching /
- model of coupled flow-reaction with heat transfer /
- bioleaching /
- numerical simulation

HTML全文

参考文献(14)

[1]	刘汉钊，张永奎. 难处理低品位金矿细菌堆浸的现状和前景[J]. 四川地质学报， 1998，18（3）：234-240.
[2]	Neuburg H J, Castillo J A, Herrera M N, Wiertz J V, Vargas T, Badilla-Ohlbaum R. A model for the bacterial leaching of copper sulphide ores in pilot-scale columns[J]. Int J Min Proc, 1991, 31(2):247-264. doi: 10.1016/0301-7516(91)90029-I
[3]	Dixon D G, Petersen J. Comprehensive modeling study of chalcocite column and heap bioleaching[J]. Hydrometallurgy of Copper, 2003, 26(3): 493-515.
[4]	Bouffard S C, Dixon D G. Investigative study into the hydrodynamics of heap leaching processes[J]. Met Mat Trans B, 2001, 32(5):763-776. doi: 10.1007/s11663-001-0063-1
[5]	Dixon D G. Heap leach modeling-the current state of the art[J]. Hydrometallurgy, 2003, 17(5): 289-314.
[6]	Casas J M, Vargas T, Martinez J, Moreno L. Bioleaching model of a copper-sulfide ore bed in heap and dump configurations[J]. Metallurgical and Materials Transaction, B, 1998, 29(4):889-909. doi: 10.1007/s11663-998-0148-1
[7]	Moreno L, Martinez J, Casas J. Modeling of bioleaching copper sulphide ores in heap and dumps[J]. Hydrometallurgy, 1999, 42(5): 443-452.
[8]	Sidborn M, Moreno L. Model for bacterial leaching of copper sulphides by forced aeration[C]Proceedings of the 15-th International Biohydrometallurgy Symposium, Singapore, 2003:52-55.
[9]	Leahy M J, Davidson M R, Schwarz M P. A two-dimensional CFD model for heap bioleaching of chalcocite[J]. Journal of ANZIAM, 2005, 32(8): 439-456.
[10]	Perry R H, Green D W. Perry’s Chemical Engineers’ Handbook[M]. 6th ed. Japan: McGraw-Hill Book Company, 1984.
[11]	Tan Y, Gannon J T, Baveye P, Alexander M. Transport of bacteria in an aquifer sand: experiments and model simulations[J]. Wat Resour Res, 1994, 30(12):3243-3252. doi: 10.1029/94WR02032
[12]	Khlaifat A A, Arastoopur H. Simulation of two-phase flow through low-permeability porous media[C]A Technology International User Conference ’97, AE, 1997.
[13]	肖国屏. 热学[M]. 上海：高等教育出版社，1989, 74-84.
[14]	王洪江. 大型矿山排土场细菌强化浸出机理及新工艺研究[D]. 博士学位论文. 长沙: 中南大学, 2006.

施引文献

资源附件(0)

访问统计

计量

文章访问数: 1720
HTML全文浏览量: 158
PDF下载量: 973
被引次数: 0

姓名
邮箱
手机号码
标题
留言内容
验证码

留言板

细菌堆浸中流动反应传热耦合过程数值模拟分析

doi: 10.3879/j.issn.1000-0887.2010.12.001

作者简介:
吴爱祥(1963- ),男,湖北仙桃人,教授,博士,博士生导师(E-mail:wuaixiang@126.com);刘金枝,副教授,博士(联系人.E-mail:jzliu@shou.edu.cn).

计量

Analysis of Coupled Flow-Reaction With Heat Transfer in Heap Bioleaching Processes

计量

目录

留言板

细菌堆浸中流动反应传热耦合过程数值模拟分析

doi: 10.3879/j.issn.1000-0887.2010.12.001

作者简介: 吴爱祥(1963- ),男,湖北仙桃人,教授,博士,博士生导师(E-mail:wuaixiang@126.com);刘金枝,副教授,博士(联系人.E-mail:jzliu@shou.edu.cn).

计量

出版历程

Analysis of Coupled Flow-Reaction With Heat Transfer in Heap Bioleaching Processes

计量

出版历程

目录

作者简介:
吴爱祥(1963- ),男,湖北仙桃人,教授,博士,博士生导师(E-mail:wuaixiang@126.com);刘金枝,副教授,博士(联系人.E-mail:jzliu@shou.edu.cn).