广东省某城镇生活污水处理厂扩容工程设计

Expansion Project Design of A Domestic Sewage Treatment Plant in Guangdong Province

广东某生活污水处理厂扩容工程工艺采用“A/A/O微曝氧化沟[1]+曝气生物滤池[2]+高效沉淀+精密过滤[3]”工艺,出水水质指标总氮执行《城镇污水处理厂污染物排放标准》(GB18918-2002)一级标准(A标准),其余主要指标达到广东省《水污染物排放限值》DB44/26-2001中规定的城镇二级污水处理厂第二时段一级排放标准、国家《城镇污水处理厂污染物排放标准》(GB18918-2002)一级标准(A标准)以及《地表水环境质量标准》GB3838-2002Ⅳ类水体要求三者中较严者,可为同类项目提供参考。

The process of the expansion project of a domestic sewage treatment plant in Guangdong adopted“A/A/O micro-aeration oxidation ditch+biological aerated filter+high-efficiency sedimentation+precision filtration”process.The treated water quality index total nitrogen shall comply with the first level standard(A standard)of Pollutant Discharge Standard for Urban Wastewater Treatment Plants(GB18918-2002),and the remaining main indicators reached“Water Pollutant Discharge Limits of Guangdong Province”(DB44/26-2001)stipulated in Second-period First-stage Discharge Standard of Urban Sewage Treatment Plants,national“Urban Sewage Treatment Plant Pollutant Discharge Standard”(GB18918-2002)the first-level standard(A Standard)and“Surface Water”Environmental Quality Standard GB3838-2002 Category Ⅳ water body requirements were the stricter of the three,which can provide reference for similar projects.