摘要
在进水流量16.5 L/h,回流比200%,滤速2.8 m/h的工况下,考察了前置反硝化BAF工艺的处理效果。结果表明:在缺氧段与好氧段滤料体积比为1∶1、1∶2、1∶3条件下,出水COD、NH3-N和TN均能达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级标准;在滤料体积比为1∶4条件下,出水COD超出排放标准,而NH3-N和TN的出水效果仍满足一级排放标准。
When the influent flow is 16.5 L/h,reflux ratio 200% and filtering velocity 2.8 m/h,the treatment effect of pre-denitrification BAF process has been investigated.The results manifest that when the filter volume ratios of anoxic section and aerobic section are 1∶1,1∶2,and 1∶3,its effluent COD,NH3-N and TN are able to reach the primary Urban Sewage Treatment Plant Pollutant Discharge Standards（GB 18918—2002）.When the filter volume ratio is 1∶4,its effluent COD exceeds the discharge standard,but the effluent of NH3-N and TN still meets the requirements of priamry discharge standard.
出处
《工业水处理》
CAS
CSCD
北大核心
2014年第7期70-73,共4页
Industrial Water Treatment
关键词
前置反硝化
上向流曝气生物滤池
缺氧
好氧
pre-denitrification
upflow biological aerated filter（BAF）
anoxic
aerobic
