悬浮和附着活性污泥反应器处理低温废水的特性比较  

Comparative study on performance characteristics of suspended and attached activated sludge reactors treating synthetic wastewater at low temperatures

作　　者：周律[1] 彭标[1] 邢秀娟[1] 

机构地区：[1]清华大学环境学院,北京100084

出　　处：《环境工程学报》2016年第4期1603-1608,共6页Chinese Journal of Environmental Engineering

基　　金：国际科技合作重点基金资助项目(2007DFC90170)

摘　　要：在水温6℃下,进行了实验室规模的序批式移动床生物膜反应器(sequencing batch moving bed biofilm reactor,SBMBBR)及传统的序批式反应器(SBR)污水处理特性的比较研究。结果表明,在容积负荷分别为1.3、2.2和3.4 kg/(m^3·d)的3个工况下,2个反应器的COD平均去除率均不低于95%,总氮平均去除率均不低于43%,总磷平均去除率均不低于64%。2个反应器中都观察到明显的同步硝化反硝化过程,且对氮的去除有较大的贡献。与SBMBBR相比,SBR系统表现出相对更高的出水有机污染物去除的稳定性,出水水质波动性低。从总体的污染物去除效果分析,在水温6℃时,在相同的工艺条件下,悬浮和附着活性污泥反应器处理低温废水的工艺没有显著的差异。At a wastewater temperature of 6 ℃,the pollutant removal performance and characteristics of a sequencing batch reactor（ SBR） and sequencing batch moving bed biofilm reactor（ SBMBBR） were investigated comparatively in synthetic wastewater treatment at the laboratory scale. Experimental results showed that the average COD,total nitrogen（ TN）,and total phosphorus（ TP） removal rates of more than 95%,43%,and 64% in the two reactors were good,under volume loads of 1. 3,2. 2,and 3. 4 kg /（ m^3·d）,respectively. Meanwhile,simultaneous nitrification and denitrification（ SND） were obvious in the two reactors,which contributed significantly to nitrogen removal. Compared with an SBBR,the SBR had more reliable and lower fluctuations in the COD concentration of the effluent. Also,the study results showed that the SBR and SBMBBR did not exhibit significant differences in COD,TN,and TP removal at 6 ℃.

关 键 词：低温废水 生物处理 序批式移动床生物膜反应器 序批式反应器 

分 类 号：X703.1[环境科学与工程—环境工程]