污染控制技术及原理
张天,张代钧,卢培利,汪林.基于微分代数方法的生物除磷模型参数结构可识别性研究[J].环境科学学报,2010,30(1):97-102
基于微分代数方法的生物除磷模型参数结构可识别性研究
- Structural identifiability of parameters of a biological phosphorus removal model determined by applying differential algebra
- 基金项目:国家自然科学基金资助项目(No.50578166)
- 张代钧
- 1. 重庆大学环境科学系, 重庆 400030; 2. 重庆大学西南资源开发及环境灾害控制工程教育部重点实验室, 重庆 400030
- 摘要:通过将微分代数方法应用于异养菌生长Monod模型和生物除磷亚模型参数结构可识别性研究,探讨了该方法的适用性.结果表明,本研究提出的算法计算过程清晰、系统化,可以实现计算机编程自动运算;在文献中方法很难进行生物除磷亚模型参数结构可识别性研究时,采用本算法也能得出结果.本研究为活性污泥模型参数结构可识别性研究提供新的方法,并对除磷过程参数估计优化实验的设计有重要的指导意义.
- Abstract:Anew method was developed to analyze the structural identifiability of parameters of activated sludge models. The structural identifiability of parameters of the Monod model,which describes heterotrophic organism growth,and a biological phosphorus removal sub-model were studied using differential algebra. The algorithm proposed in this paper is clear and systematic,and therefore was able to be edited by a computer. Especially,this method was applicable to the case of the biological phosphorus removal sub-model,which is difficult for other methods to describe. The results could be used to guide the optimal experiment design for parameter estimation of the phosphorous removal process.
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