摘要
某污水处理厂Carrousel氧化沟由6条底部连通的廊道组成,廊道较长,没有设置独立的厌氧、缺氧区,出水总氮长期不能达标。通过设备改造,对生物系统功能区重新划分,既保证了氧化沟底部混合液循环流动,又为微生物提供了良好的硝化、反硝化环境,提升了脱氮效果,出水总氮达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级A标准。
A Carrousel oxidation ditch sewage treatment plant was composed of six corridors connected at the bottom.Since the corridor was long and without independent anaerobic and anoxic zones, the effluent total nitrogen could not meet the standard for a long time.Through equipment transformation and redistribution of biological functional areas,not only the circulation of mixed liquid at the bottom of the oxidation ditch was guaranteed,but also did it provide a good nitrification and denitrification environment for microorganisms,which had improved the effect of nitrogen removal.The effluent total nitrogen could meet the first level A standard in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002).
作者
原建光
赵迎春
郝小军
YUAN Jian-guang;ZHAO Ying-chun;HAO Xiao-jun(Kangda Environmental Protection Water Co.Ltd.,Jiaozuo 454000,China)
出处
《中国给水排水》
CAS
CSCD
北大核心
2018年第24期119-122,共4页
China Water & Wastewater
关键词
氧化沟
工艺改造
反硝化
脱氮
oxidation ditch
process reconstruction
denitrification
nitrogen removal
