多级AO与氧化沟工艺在污水厂扩建工程中应用对比  

Application Comparison of Multi-stage AO and Oxidation Ditch Process in a WWTP Expansion Project

作　　者：谢晓旺 XIE Xiao-wang(Jiangsu Water Development Co.Ltd.of South-to-North Water Diversion Project,Nanjing 210029,China)

机构地区：[1]南水北调江苏水务发展有限公司,江苏南京210029

出　　处：《中国给水排水》2020年第14期127-130,共4页China Water & Wastewater

摘　　要：六安市某污水处理厂扩建规模为1.5×10^4m^3/d,出水水质执行一级A标准,综合比选确定主体工艺采用多级AO+高密池。与一期卡鲁塞尔氧化沟工艺运行效果对比表明,多级AO工艺的反硝化脱氮能力优于氧化沟工艺,各出水指标均能够稳定达到设计要求。介绍了主要构筑物及设计参数,可为其他类似污水处理厂提标扩建提供参考。By comprehensive comparison and selection,the process of multi-stage anaerobic aerobic(AO)and high-density sedimentation tank is employed in a wastewater treatment plant with expansion capacity of 15000 m^3/d in Lu’an City,and the effluent quality is subject to the first level A criteria in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918-2002).The denitrification capability of multi-stage AO process is better than that of the oxidation ditch in the firststage,and the effluent quality indexes can stably meet the design requirements.The main structures and design parameters are provided as reference for other similar WWTP upgrading and expansion projects.

关 键 词：扩建工程 多级AO 高密池 卡鲁塞尔氧化沟 反硝化 

分 类 号：TU992[建筑科学—市政工程]