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细菌堆浸中流动-反应-传热耦合过程数值模拟分析
引用本文:吴爱祥,刘金枝,尹升华,王洪江.细菌堆浸中流动-反应-传热耦合过程数值模拟分析[J].应用数学和力学,2010,31(12).
作者姓名:吴爱祥  刘金枝  尹升华  王洪江
作者单位:北京科技大学土木与环境工程学院;上海海洋大学信息学院;
基金项目:国家自然科学基金(重点)资助项目,中国博士后科学基金资助项目,博士点基金资助项目,国家自然科学基金资助项目
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.

关 键 词:堆浸  流动-反应-传热耦合模型  细菌浸出  数值模拟

Analysis of Coupled Flow-Reaction With Heat Transfer in Heap Bioleaching Processes
WU Ai-xiang,LIU Jin-zhi,YIN Sheng-hua,WANG Hong-jiang.Analysis of Coupled Flow-Reaction With Heat Transfer in Heap Bioleaching Processes[J].Applied Mathematics and Mechanics,2010,31(12).
Authors:WU Ai-xiang  LIU Jin-zhi  YIN Sheng-hua  WANG Hong-jiang
Institution:WU Ai-xiang1,LIU Jin-zhi1,2,YIN Sheng-hua1,WANG Hong-jiang1 (1.School of Civil and Environment Engineering,University of Science and Technology Beijing,Beijing 100083,P.R.China,2.College of Information & Technology,Shanghai Ocean University,Shanghai 201306,P.R.China)
Abstract:A mathematical model for heap bioleaching was developed to analyze heat transfer,oxygen flow,target ions 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 slop...
Keywords:heap leaching  model of coupled flow-reaction with heat transfer  bioleaching  numerical simulation  
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