好氧颗粒污泥膜生物反应器脱氮特性  

Characteristics of Nitrogen Removal in Aerobic Granular Sludge Membrane Bioreactor

作　　者：王景峰[1] 王暄[2] 季民[3] 卢姗[3] 杨造燕[3] 李君文[1] 

机构地区：[1]军事医学科学院卫生学环境医学研究所,天津300050 [2]天津工业大学中空纤维膜材料与膜过程教育部重点实验室,天津300160 [3]天津大学环境科学与工程学院,天津300072

出　　处：《环境科学》2007年第3期528-533,共6页Environmental Science

基　　金：教育部天津大学-南开大学合作项目

摘　　要：好氧颗粒污泥膜生物反应器(GMBR)连续运行71d,对模拟生活污水表现出良好的有机物去除及同步硝化反硝化(SND)能力.进水TOC浓度为56.8～132.6mg/L时,膜出水TOC去除率为84.7%～91.9%;进水氨氮浓度为28.1～38.4mg/L时,稳定运行阶段氨氮去除率为85.4%～99.7%,总氮去除率为41.7%～78.4%.结合反应器中污泥生长形态,对不同粒径污泥的同步硝化反硝化研究表明,好氧条件下絮状污泥几乎没有反硝化能力,SND能力来源于颗粒污泥,并且随着污泥粒径的增大,反硝化速率以及总氮去除效率提高.通过扫描电镜对颗粒污泥外观以及沿传质方向剖面内部特征的观察分析,对颗粒污泥同步硝化反硝化的作用过程进行了探讨.An aerobic granular sludge membrane bioreactor（GMBR） had been stably operated for 71 days, and it showed good organics removal and simultaneous nitrification and denitrification （SND） performances. TOC, ammonium and total nitrogen removal effieieneies of GMBR remained 84.7% - 91.9% , 85.4% -99.7% and 41.7% - 78.4% respectively as influent TOC were 56.8 - 132.6 mg/L and ammonium nitrogen were 28.1 - 38.4 mg/L. Moreover, further batch tests of different size sludge revealed that floclike sludge nearly had not SND ability, the SND performances of GMBR was mostly come from granular sludge, and denitrification rate and total nitrogen removal efficieneies under aerobic condition increased with sludge size increased. Analyzing the morphology and section characteristics of granular sludge under scan electron microscope, the SND process was also described.

关 键 词：好氧颗粒污泥 膜生物反应器 同步硝化反硝化 粒径分布 

分 类 号：X703.1[环境科学与工程—环境工程]