Carrousel氧化沟中动力学参数的测定

Determination of kinetic parameters of Carrousel oxidation ditch

以西安市某污水处理厂Carrousel氧化沟工艺为研究对象,在活性污泥2d号模型(ASM2d)的基础上,运用间歇OUR法,测定了该污水处理厂氧化沟内自养菌最大比增长速率μm A、异养菌衰减系数bH和异养菌最大比增长速率μm H的值。测定结果分别为0.726、0.471和5.200 d-1。测定结果与国际水协的推荐值存在差异,分析了存在差异的原因,该测定值可用于污水处理厂后续模拟与优化。

Taking carrousel oxidation ditch process of a sewage treatment plant in Xi＇an city as the research object, on the basis of the activated sludge 2d model（ASM2d）, the autotrophic bacteria maximum specific growth rate μmA, heterotrophic bacteria decay rate bH, and heterotrophic bacteria maximum specific growth rate/XmH in the oxidation ditch of the sewage plant were determined using intermittent OUR method, and the results were 0.726, 0.471 and 5.200 d-1 respectively. There are many differences between the determination results and the recommended values of International Water Association, and the causes for those differences were analyzed, the measured values could be used for the following simulation and optimization of sewage treatment plant.