2种UASB的ANAMMOX与反硝化协同作用对比研究  

Comparative study of ANAMMOX-denitrification synergism in two UASB-reactors

作　　者：李伙生[1] 周少奇[1] 孙艳波[1] 

机构地区：[1]华南理工大学环境科学与工程学院,广州510006

出　　处：《环境工程学报》2010年第2期247-252,共6页Chinese Journal of Environmental Engineering

基　　金："十一五"国家科技支撑项目课题(2006BAJ04A12-4;2008BAE64B05);亚热带建筑科学国家重点实验室自主研究项目(2008ZA09;2009ZB05);广州市科技重大项目(X2DLB2080500)

摘　　要：采用2套UASB-ANAMMOX反应器处理垃圾渗滤液,其中反应器2具有生物膜,对反应器在有机环境下的ANAMMOX与反硝化协同作用进行对比研究。在稳定期,反应器1和反应器2对氨氮、亚硝氮、TIN、COD的平均去除率分别为95.7%、95.9%、77.3%、70.3%和97.4%、96.4%、87.2%、74.8%。反应器1对TIN和COD最大容积去除率为112.2和107.7 g/(m3.d),反应器2对TIN和COD最大容积去除率为120.5和119.9 g/(m3.d)。结果表明,过高的负荷会对反应器产生抑制作用,且当抑制产生后协同作用难以恢复到原来水平。在厌氧氨氧化与反硝化协同作用良好时,pH值和碱度均存在特征性变化。总体上,反应器2比反应器1具有更强的厌氧氨氧化与反硝化协同作用和抗负荷冲击能力。Comparative study on treatment of the diluted leachate,by anaerobic ammonium oxidation（ANAMMOX） coupled with denitrification,was carried out with two upflow anaerobic sludge blanket（UASB） reactors,reactor 2 with biofilm and reactor 1 without it.During the steady states,the average removal efficiencies of ammonium,nitrite,TIN and COD in reactor 1 were 95.7%,95.9%,77.3%,70.3%,and corresponding to that in reactor 2 were 97.4%,96.4%,87.2% and 74.8%,respectively.The maximum volumetric loading conversion rates of TIN and COD in reactor 1 were 112.2 and 107.7 g/（m3·d）,corresponding to that in reactor 2 were 120.5 and 119.9 g/（m3·d）,respectively.The synergism in the reactors was inhibited due to overload,and was hard to recover to the previous performance once overload taken place.When the synergism was in a good state,characteristic changes were presented in the pH value and alkalinity.Reactor 2 with biofilm was found to be more active than reactor 1 without biofilm in the synergism and in loading shock resistance.

关 键 词：厌氧氨氧化 反硝化 协同作用 垃圾渗滤液 电子计量学 

分 类 号：X703[环境科学与工程—环境工程]