北方某长流程污水处理厂处理工艺设计探讨

Discussion on the Design of Treatment Process for a Long-Process Wastewater Treatment Plant in Northern China

【目的】以北方某畜牧业城市的新建污水处理厂为例,探讨长流程污水处理工艺。【方法】分析进水指标、特征污染物,采用“水解酸化+生物池+混凝沉淀+反硝化深床滤池+超滤膜”核心工艺,合理布置、节约用地。【结果】经该污水处理工艺处理后,出水稳定达到一级A标准。【结论】研究结论可为类似地域和生活污水特质的处理项目提供实践指导和理论参考。

[Purposes]Taking a newly built sewage treatment plant in a northern animal husbandry city as an example,this paper discusses the long-process sewage treatment process.[Methods]The influent indi⁃cators and characteristic pollutants were analyzed,and the core process of"hydrolysis acidification+bio⁃logical tank+coagulation sedimentation+denitrification deep bed filter+ultrafiltration membrane"was adopted to reasonably arrange and save land use.[Findings]After the treatment of the process,the efflu⁃ent stably met the first-class A standard.[Conclusions]The purpose is to provide practical guidance and theoretical support for similar regional and domestic sewage treatment projects.