短程硝化的生化机理及其动力学

短程硝化的生化反应机理和动力学是生物脱氮技术的理论基础,同时也是生物脱氮工艺设计、运行科学化和合理化的重要依据.基于短程硝化的生化机理、氨氧化菌的电子传递(能量产生)模式,从微生物学和化学计量学两个方面详细论述了短程硝化一系列复杂的生化反应过程.由此可知,短程硝化是一个涉及多种酶及多种中间产物,并伴随着电子(能量)传递的复杂生化反应过程,是基质(NH4 -N)利用(产能代谢)和微生物(氨氧化菌)增殖(合成代谢)两类反应的综合,因此,研究氨氮比利用速率和氨氧化菌比增殖速率动力学则是对短程硝化反应的深层次研讨.并建议采用积分法和微分法来确定动力学参数μnmax、KN、vnmax.

The biochemical reaction mechanism and kinetics of partial nitrification

The biochemical reaction mechanism and kinetics of partial nitrification are the foundation of biological nitrogen removal and they are important for biological denitrification process design and proper operation. The complex biochemical reaction of partial nitrification is described from the microbiology and stoichiometry on the basis of the electron flow (energy production) pathway. By these, we know that partial nitrification involves a series of complex biochemical reactions concerning many intermediates, accompanied with electron flow (energy production). At the same time, it is the synthesis of two reactions-ammonia-N utilization and ammonia-oxidizing bacterial growth which need further study. Integral and differential methods are adapted to obtain the values of the kinetics constants.