某城市污水处理厂二期污水处理工程设计研究

摘要

详细介绍了某城市第一污水处理厂在现有工程的基础上二期工程的工艺设计以及构筑物、设备参数;二期工程充分利用原有工程场地,本着现有、新建运行管理便捷统一原则,采用改良型A/A/O生化池作为二级处理主体工艺;二期工程投入运营后,某城市污水处理厂达到20×104 m3/d的污水设计规模.最终污水厂出水水质达到了《城镇污水处理厂污染物排放标准》(GB 18918-2002)一级 A排放标准.污水处理厂运营后,经济效益显著,可保本经营,并具有企业自我发展的能力.%The design, structure and equipment parameter of phase II engineering in a wastewater treatment plant was introduced in detail on the basis of existing engineering.Phase II project made full use of the existing engineering space, and used improved A/A/O biological pond as a secondary treatment process in line with existing and new convenient and unified principle of operation and management.The Phase II project reached sewage design size of 20×104 m3/d after put into operating.Finally, the effluent of the plant can meet the first level A criteria specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918-2002).After the operation, the economic benefits were significant, and can be guaranteed operation, while had the ability of self-development.