CIESC Journal ›› 2008, Vol. 59 ›› Issue (10): 2518-2525.
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IN Rencun;ZHENG Ping;Tang Chongjian
Online:
Published:
金仁村;郑平;唐崇俭
Abstract:
The performance of an ANAMMOX(anaerobic ammonium oxidation) fixed-bed reactor was tested and the process kinetics characteristics of the reactor was analyzedThe ANAMMOX reactor was successfully operated within 86 days with denitrifying activated sludge as inoculumWhen 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 observedSecondorder and a modified StoverKincannon models well fitted the ANAMMOX fixed reactor under the substrate noninhibition conditionsThe 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
厌氧氨氧化,
摘要:
进行了厌氧氨氧化固定床反应器的运行性能试验,分析了其过程动力学特性。接种反硝化污泥,用模拟废水可成功启动该反应器。当进水总氮浓度为608 mg·L-1,水力停留时间为2 h,总氮负荷为7.34 kg·m-3·d-1时,反应器获得最大基质去除速率6.11 kg·m-3·d-1。二级动力学模型和改进的StoverKincannon模型均适用于非基质抑制状态下的厌氧氨氧化反应器过程模拟。StoverKincannon模型动力学分析表明,这种反应器的最大基质去除速率可达12.4 kg·m-3·d-1,具有较大的脱氮潜能。
关键词: 厌氧氨氧化, 固定床, Stover-Kincannon模型, 二级动力学, 生物脱氮
IN Rencun, ZHENG Ping, Tang Chongjian. Performance and process kinetics characteristics of ANAMMOX fixed-bed reactor[J]. CIESC Journal, 2008, 59(10): 2518-2525.
金仁村, 郑平, 唐崇俭. 厌氧氨氧化固定床反应器脱氮性能和过程动力学特性 [J]. 化工学报, 2008, 59(10): 2518-2525.
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