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608mg·L-1,水力停留时间为2h,总氮负荷为7.34kg·m-3·d-1时,反应器获得最大基质去除速率6.11kg·m-3·d-1。二级动力学模型和改进的Stover-Kincannon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。Stover-Kincannon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12.4kg·m-3·d-1,具有较大的脱氮潜能。
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 6.11kg·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 12.4kg·m^-3·d^-1 deduced from the Stover -Kincannon model, which indicated great potential in improving reactor performance.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2008年第10期2518-2525,共8页
CIESC Journal
基金
国家自然科学基金项目(50808060)
国家高技术研究发展计划项目(2006AA06Z332)
浙江省重大攻关项目(2003C13005)~~
