Smolders G J, Klop J M, van Loosdrecht M C, Heijnen J J
Department of Biochemical Engineering, Delft University of Technology, Julianalaan 67, 2628 BC Delft, The Netherlands.
Biotechnol Bioeng. 1995 Nov 5;48(3):222-33. doi: 10.1002/bit.260480309.
The biological phosphorus removal process is a process which depends basically on three internal storage compounds. Poly-beta-hydroxybutyrate (PHB) produced during the anaerobic phase is used as substrate for biomass, polyphosphate, and glycogen formation. The reaction rates of the aerobic processes are primarily determined by the PHB content of the cells. This PHB content is highly dynamic due to the conversions during the anaerobic and aerobic phase of the cycle and the ratio between substrate addition and biomass present in the reactor. The amount of biomass present in the reactor is determined by the sludge retention time and growth rate. A metabolic model of the biological phosphorus removal process was developed and verified over a wide range of growth rates. The effect of different growth rates on the internal fractions of stored components was determined and described mathematically. One set of kinetic parameters was capable of describing the measured conversions of all components observed in the reactor as a function of the sludge retention time.
生物除磷过程是一个基本上依赖于三种内部储存化合物的过程。厌氧阶段产生的聚-β-羟基丁酸酯（PHB）用作生物质、聚磷酸盐和糖原形成的底物。好氧过程的反应速率主要由细胞的PHB含量决定。由于循环中厌氧和好氧阶段的转化以及底物添加量与反应器中存在的生物质之间的比例，这种PHB含量具有高度动态性。反应器中存在的生物质数量由污泥停留时间和生长速率决定。开发了生物除磷过程的代谢模型，并在广泛的生长速率范围内进行了验证。确定了不同生长速率对储存成分内部比例的影响，并进行了数学描述。一组动力学参数能够描述反应器中观察到的所有成分的测量转化率与污泥停留时间的函数关系。
