关键词:

厌氧氨氧化, 固定床, Stover-Kincannon模型, 二级动力学, 生物脱氮

Abstract:

The performance of an ANAMMOX(anaerobic ammonium oxidation) fixed-bed reactor was tested and the process kinetics characteristics of the reactor was analyzedThe ANAMMOX reactor was successfully operated within 86 days with denitrifying activated sludge as inoculumWhen operated at a hydraulic retention time of 2 h and influent total nitrogen of 608 mg·L^-1, corresponding to a nitrogen loading rate of 7.34 kg·m^-3·d^-1,the maximum total substrate removal rate of 6.11 kg·m^-3·d^-1 was observedSecondorder and a modified StoverKincannon models well fitted the ANAMMOX fixed reactor under the substrate noninhibition conditionsThe maximum total substrate removal rate achieved in this study was still far lower than the theoretical value 12.4 kg·m^-3·d^-1 deduced from the Stover Kincannon model, which indicated great potential in improving reactor performance.

Key words:

厌氧氨氧化, 固定床, Stover-Kincannon模型, 二级动力学, 生物脱氮