以固定填料填充床生物膜反应器为厌氧氨氧化反应器,采用低负荷培养法培养富集厌氧氨氧化菌,并研究其脱氮效能。结果表明,低负荷培养法可以在较短时间内(40 d左右)快速启动厌氧氨氧化反应器;稳定期反应器出水氨氮和亚硝氮去除率均接近100...以固定填料填充床生物膜反应器为厌氧氨氧化反应器,采用低负荷培养法培养富集厌氧氨氧化菌,并研究其脱氮效能。结果表明,低负荷培养法可以在较短时间内(40 d左右)快速启动厌氧氨氧化反应器;稳定期反应器出水氨氮和亚硝氮去除率均接近100%。系统在受到高浓度有机物和NO_2^--N抑制后恢复时间较短,恢复后,出水水质稳定、系统耐冲击负荷强。上流式固定床反应器具有高负荷和高效率的优点,反应器的基质氮去除速率可达2.79 kg N/(m^3·d)。展开更多
The stability of performance of anaerobic ammonium oxidation (ANAMMOX) reactors was studied and the indices of performance stability were compared.The results showed that under different types of shock load, the react...The stability of performance of anaerobic ammonium oxidation (ANAMMOX) reactors was studied and the indices of performance stability were compared.The results showed that under different types of shock load, the reactors with different configurations displayed different stability.The biofilm reactor stood first in stability towards substrate shock load, followed by anaerobic sequencing batch reactor (SBR) and the granular sludge bed.And the biofilm reactor took the first place towards hydraulic shock load, followed by the granular sludge bed and SBR.The three ANAMMOX reactors were more tolerant to hydraulic shock load than to substrate shock load.When different kinds of stability assessment indices(i.e., sensitivity ratio, mean variance ratio and derivative regression function) were used, inconsistent assessment conclusions were reached.It was suggested that the mean deviation ratio and derivative regression function were more effective and universal.展开更多
文摘以固定填料填充床生物膜反应器为厌氧氨氧化反应器,采用低负荷培养法培养富集厌氧氨氧化菌,并研究其脱氮效能。结果表明,低负荷培养法可以在较短时间内(40 d左右)快速启动厌氧氨氧化反应器;稳定期反应器出水氨氮和亚硝氮去除率均接近100%。系统在受到高浓度有机物和NO_2^--N抑制后恢复时间较短,恢复后,出水水质稳定、系统耐冲击负荷强。上流式固定床反应器具有高负荷和高效率的优点,反应器的基质氮去除速率可达2.79 kg N/(m^3·d)。
文摘The stability of performance of anaerobic ammonium oxidation (ANAMMOX) reactors was studied and the indices of performance stability were compared.The results showed that under different types of shock load, the reactors with different configurations displayed different stability.The biofilm reactor stood first in stability towards substrate shock load, followed by anaerobic sequencing batch reactor (SBR) and the granular sludge bed.And the biofilm reactor took the first place towards hydraulic shock load, followed by the granular sludge bed and SBR.The three ANAMMOX reactors were more tolerant to hydraulic shock load than to substrate shock load.When different kinds of stability assessment indices(i.e., sensitivity ratio, mean variance ratio and derivative regression function) were used, inconsistent assessment conclusions were reached.It was suggested that the mean deviation ratio and derivative regression function were more effective and universal.
