应用厌氧序批式反应器(ASBR),接种厌氧颗粒污泥,以葡萄糖模拟废水为基质,探索ASBR反应器的最大容积负荷以及最大负荷特性;并通过处理实际淀粉废水和啤酒废水验证葡萄糖模拟废水阶段所达到的最大容积负荷。实验结果表明:恒温(37.5℃)条件...应用厌氧序批式反应器(ASBR),接种厌氧颗粒污泥,以葡萄糖模拟废水为基质,探索ASBR反应器的最大容积负荷以及最大负荷特性;并通过处理实际淀粉废水和啤酒废水验证葡萄糖模拟废水阶段所达到的最大容积负荷。实验结果表明:恒温(37.5℃)条件下,通过调节碱度促进该反应器建立稳态。经过26 d的反应,葡萄糖模拟废水容积负荷由3 kg COD·m^(-3)·d^(-1)提升至高达8 kg COD·m^(-3)·d^(-1);并且在短的水力停留时间(1 d)条件下,保持COD去除率超过80%。同时电镜扫描结果显示,不同负荷下的颗粒污泥形态差异比较大。负荷越高,颗粒污泥粒径越大,也更密实。同时基于模拟葡萄糖废水试验数据,使用ASBR反应器对淀粉废水和啤酒废水进行处理。同样展现出非常好的去除特性,为ASBR实际应用提供基础数据。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
文摘应用厌氧序批式反应器(ASBR),接种厌氧颗粒污泥,以葡萄糖模拟废水为基质,探索ASBR反应器的最大容积负荷以及最大负荷特性;并通过处理实际淀粉废水和啤酒废水验证葡萄糖模拟废水阶段所达到的最大容积负荷。实验结果表明:恒温(37.5℃)条件下,通过调节碱度促进该反应器建立稳态。经过26 d的反应,葡萄糖模拟废水容积负荷由3 kg COD·m^(-3)·d^(-1)提升至高达8 kg COD·m^(-3)·d^(-1);并且在短的水力停留时间(1 d)条件下,保持COD去除率超过80%。同时电镜扫描结果显示,不同负荷下的颗粒污泥形态差异比较大。负荷越高,颗粒污泥粒径越大,也更密实。同时基于模拟葡萄糖废水试验数据,使用ASBR反应器对淀粉废水和啤酒废水进行处理。同样展现出非常好的去除特性,为ASBR实际应用提供基础数据。
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.
