用微电极测定生物膜微环境中的物质迁移  

DETERMINATION OF THE MATERIAL MIGRATION IN THE BIOFILM MICROENVIRONMENT BY THE MICROELECTRODE

作　　者：孟千秋[1] 王磊[1] 王韬[1] 王旭东[1] 李志霞[1] 

机构地区：[1]西安建筑科技大学环境与市政工程学院

出　　处：《环境工程》2008年第5期88-91,共4页Environmental Engineering

基　　金：国家自然科学基金项目(50178059)

摘　　要：通过微电极法测定生物活性炭流化床反应器中pH、NH4+、NO2-、NO3-和O2的剖面图,得出不同C/N下各种物质在生物膜内部的迁移情况。通过分析比较:传统的C(C)∶C(N)=100∶5的条件下,并不是硝化反应的最佳条件,而C(C)∶C(N)=5时,NH4+-N的去除率最高。The migration of various materials in biofilm at different C/N can be obtained through determining the profiles of pH,NH+_4,NO_2,NO_3 and O_2 in a bio-activated carbon fluidized bed reactor by microelectrodes.It has been found through analysis and comparision that in the traditional condition of C∶N=100∶5 is not the best condition,while at C/N=5,the removal rate of NH+_4-N is the highest.

关 键 词：生物流化床 生物膜 微电极 硝化反应 

分 类 号：X703[环境科学与工程—环境工程]