两级AO-MBBR工艺用于高速服务区污水处理站的设计研究

Two-stage AO-MBBR Process for Design of Sewage Treatme nt Station in High-speed Service Area

高速服务区污水具有水量波动大,水质总氮、氨氮、总磷浓度高等特点,污水处理站排放水质要求达到《城镇污水处理厂污染物排放标准》(GB 18918-2002)[1]的一级A标准。福厦高速沿线某服务区100 m3/d污水处理站设计,采用两级AOMBBR+砂滤+接触消毒工艺对污水进行处理后达标排放。本文介绍了该污水处理站的工艺流程、各单体设计参数,并总结了其工程设计的特点。

The sewage in high-speed service area has the characteristics of large water fl uctuation,high concentration of total nitrogen,ammonia nitrogen and total phosphorus.The water quality requirements of sewage treatment station reaches“Pollutant Discharge Standard”(GB 18918-2002)[1]level A standard.In this paper,taking the design of 100 m3/d sewage treatment station in a service area along the Fuzhou-Xiamen expressway as an example,the two-stage AO-MBBR+sand fi lter+contact disinfection process is used to treat it and discharge it to the standard.This paper introduc es the process fl ow and design parameters of sewage treatment station,and summarizes the characteristics of engineering design.