Song Zhi-wei, Tong Long-yan, Pan Yue-jun, Ren Nan-qi
School of Resource and Environmental Engineering, Heilongjiang Institute of Science and Technology, Harbin 150027, China.
Huan Jing Ke Xue. 2010 May;31(5):1263-8.
The aerobic granular sludge was cultivated by adding flocculant bacteria in sequencing batch airlift reactor (SBAR), the physical-chemical properties and biodegradation effect of granules were studied so as to investigate the influence of flocculant bacterium on characteristics of aerobic granular sludge. The results showed that flocculant bacterium could prompt granulation process, the aerobic granules could be successfully cultivated when the dose of flocculants was between 0-20 mL/L. The optimum dose was 10 mL/L, in this case the formation of aerobic granules needed 35d which was faster than that of 42 d in blank experiment, and SVI was around 40 mL/g, settling velocity reached 35.82 m/h, the COD, NH4+ -N,TP removal rate of mature granular sludge were 97.14%, 84.49% and 87.59% respectively. While no granules formed when the dose of flocculants was 30 mL/L, some white flocs existed in SBAR.
通过在序批式气升式反应器（SBAR）中添加絮凝细菌来培养好氧颗粒污泥，研究颗粒的物理化学性质和生物降解效果，以探讨絮凝细菌对好氧颗粒污泥特性的影响。结果表明，絮凝细菌能够促进颗粒化过程，当絮凝剂投加量在0-20 mL/L之间时，好氧颗粒能够成功培养。最佳投加量为10 mL/L，在此情况下，好氧颗粒的形成需要35天，比空白实验中的42天更快，污泥体积指数（SVI）约为40 mL/g，沉降速度达到35.82 m/h，成熟颗粒污泥对COD、NH4+-N、TP的去除率分别为97.14%、84.49%和87.59%。而当絮凝剂投加量为30 mL/L时未形成颗粒，SBAR中存在一些白色絮体。
