投加填料强化A/O系统脱氮性能研究  

Performance of Nitrogen Removal of A/O Process with Suspended Carriers

作　　者：赵文梅[1] 张志敏 刘东方[3] 田素凤 刘宝玉[4] 邓彪[4] 

机构地区：[1]天津城市建设学院,天津300384 [2]天津市宁河县环保监测站,天津301500 [3]南开大学环境科学与工程学院,天津300071 [4]天津创业环保股份有限公司,天津300381

出　　处：《城市环境与城市生态》2008年第5期9-12,共4页Urban Environment & Urban Ecology

基　　金：天津市科技发展计划项目(05ZHGCGX01800)

摘　　要：介绍了投加填料法对A/O(厌氧—好氧)工艺生物脱氮的影响。在填料投加率50%(φ(填料)=50%)、好氧段HRT 4.4 h和缺氧段HRT 2.2 h的情况下,进水CODC r为300~800 mg/L、NH4+-N为30~70 mg/L,TN为30~90 mg/L,出水CODC r小于48 mg/L,NH4+-N小于5 mg/L,TN小于15 mg/L,去除效率可分别达到90%、91%和60%以上,出水水质达到了《城镇污水处理厂污染物排放标准》(GB18918-2002)一级A排放标准,明显优于常规A/O系统。The effect of suspended carriers on the performance of nitrogen removal of A/O process is introduced.The results show that under the conditions of 50%(V/V) suspended carrier,HRT 4.4 h in oxic stage and HRT 2.2 h in anoxic stage,when the concentrations of CODCr,NH+4-N and TN in influent are 300~800 mg/L,30～70 mg/L and 30～90 mg/L,the concentrations of CODCr,NH+4-N and TN in effluent are less than 48 mg/L,5 mg/L and 15 mg/L,respectively.The corresponding removal efficiencies are higher than 90%,91% and 60% respectively.The quality of effluent from A/O process with suspended carriers meets the RankⅠ-A of discharge standard of pollutants for municipal wastewater treatment plant(GB 18918-2002).And it is clearly better than that of traditional A/O system.

关 键 词：污水处理 悬浮填料 A/O工艺 脱氮 

分 类 号：X703.1[环境科学与工程—环境工程]