| 推流式反应器系统中的非线性反应扩散方程 |
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| 引用本文： | 郑媛,柴立和.推流式反应器系统中的非线性反应扩散方程[J].天津理工大学学报,2006,22(6):8-11. |
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| 作者姓名： | 郑媛 柴立和 |
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| 作者单位： | 天津大学,环境科学与工程学院,天津,300072 |
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| 基金项目： | 国家自然科学基金;天津大学校科研和教改项目;教育部留学回国人员科研启动基金 |
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| 摘 要： | 自上世纪初污水生物处理技术出现以来,应用附着微生物的生物膜反应器就一直发挥着不可忽视的作用.连续搅拌釜式反应器与推流式反应器是较为常见的两类生物膜反应器,真实反应器往往介于这两类反应器之间.对推流式反应器,现有的分析大都假设其内部沿反应器长度的径向任一点的流速
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| 关 键 词： | 反应扩散方程 生物膜 推流式生物反应器 洗出平衡点 |
| 文章编号： | 1673-095X（2006）06-0008-04 |
| 收稿时间： | 2005-12-27 |
| 修稿时间： | 2005-12-27 |
Nonlinear reaction diffusion equations in plug flow reaction |
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| ZHENG Yuan,CHAI Li-he.Nonlinear reaction diffusion equations in plug flow reaction[J].Journal of Tianjin University of Technology,2006,22(6):8-11. |
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| Authors: | ZHENG Yuan CHAI Li-he |
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| Institution: | School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China |
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| Abstract: | Nonlinear dynamic features of biofilm growth play important roles in the operation of bioreactor.A mechanistic nonlinear reaction diffusion model forbiofilmformation in plug flow reactor(PFR),taking account of the transformation between planktonic bacteria and adherent bacteria and some parametric effects ofbiofilm formation and stabilization,was proposed.By analytical investigations on the washout equilibrium and the existence of a nontrivial steady state,the physics for the start-up(i.e.biofilm formation) in PFR was revealed.Some suggestions on successful startup and operation of PFR in wastewater treatment engineering were provided. |
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| Keywords: | reaction diffusion equation biofilm plug flow reactor washout equilibrium |
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