摘要
以乙酸和丙酸作为混合碳源,采用2组序批式反应器(SBR)研究聚磷菌(PAO)和聚糖菌(GAO)代谢过程中的物质转化规律.PAO和GAO动力学模型共包含7个计量学参数和24个动力学参数.根据计量学方程,推导了PAO和GAO动力学模型中的计量学参数.结合试验结果,确定了动力学参数的取值.采用Matlab软件积分计算了PAO和GAO胞内物质的变化规律.SBR运行的实际值与模拟值相吻合,表明基于SCFAs代谢的动力学模型能够很好地模拟PAO和GAO的好氧/厌氧代谢过程.
Two groups of sequencing batch reactors were used to study the metabolism substrate transformation of phosphorus- accumulating organisms （PAO） and glycogen-accumulating organisms （GAO） fed with mixed acetic and propionic acids. Seven stoichiometry parameters and 24 kinetic parameters were contained in the PAO and GAO kinetic model, and stoichiometry parameters were deduced from the stoichiometry models, while kinetic parameters were determined by experimental results. The kinetic model parameters of stoichiometry and kinetics were determined according the experiments and the literature. Subsequently, the substrate transformations of PAO and GAO were calculated by the Matlab software. The model curves matched the SBR experimental data well, indicating that the kinetic model based on SCFAs metabolism could be used to simulate PAO and GAO in anaerobic-aerobic conditions.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2013年第3期998-1003,共6页
Environmental Science
基金
国家自然科学基金项目(50408039)
国家高技术研究发展计划(863)项目(2007AA06Z326)
中国石化基础科研项目(311047)
关键词
聚磷菌
聚糖菌
计量学参数
动力学参数
动力学模拟
phosphorus-accumulating organisms （PAO）
glycogen-accumulating organisms （GAO）
stoichiometry parameters
kinetic parameters
kinetic model
