文献类型：期刊文章

作　　者：孙洪伟[1] 王淑莹[1] 王希明[1] 时晓宁[1] 彭永臻[1]

机构地区：[1]北京工业大学环能学院北京市水质科学与水环境恢复工程重点实验室,北京100124

出　　处：《化工学报》

基　　金：北京市自然科学基金重点项目(8091001)~~

年　　份：2009

卷　　号：60

期　　号：7

起止页码：1806-1811

语　　种：中文

收录情况：AJ、BDHX、BDHX2008、CAS、CSCD、CSCD2011_2012、EI、IC、JST、RCCSE、SCOPUS、ZGKJHX、核心刊

摘　　要：The treatment of landfill leachate obtained from municipal solid waste(MSW) by using a lab-scale sequencing batch reactor(SBR) was studied.The aim of achieving and stabilizing partial nitrification and denitrification and the characteristics of advanced nitrogen removal were investigated.The experimental results showed that for 95 days running,stable partial nitrification with nitrite accumulation rate above 92.5% was achieved and maintained successfully.The stable biological nitrogen removal via partial nitrification and denitrification was realized and the average removal efficiency of NH+4-N and TN were above 97.2% and 91.7%,respectively.The DO,ORP and pH could be used as the process control parameters for SBR reactor,because the characteristic points on the profiles indicated exactly the nitrification and denitrification end point.The nitrite oxidizing bacteria(NOB) was more sensitive than ammonia oxidizing bacteria(AOB) to the free ammonia(FA) and free nitrite acid(FNA),so the activity of NOB was inhibited by the synergetic effect of highly concentrated FA and FNA in the SBR nitrification.Furthermore,the key factor of achieving and stabilizing partial nitrification and denitrification for a long time was optimization of nitrifying microbial population by the assistance of process control,which was proved by FISH analysis.

关 键 词：垃圾渗滤液 序批式活性污泥法 短程硝化反硝化 游离氨  游离亚硝酸 FISH  

分 类 号：X703.1]