摘要：

潍坊某污水处理厂规模为6×10⁴ m³/d，原出水水质执行一级A排放标准。通过提标改造将污水厂出水水质提高到准Ⅳ类水质，针对该厂进水工业废水比例较高、TN浓度较高和有机污染物难降解等特点，将现有生化系统卡鲁赛尔氧化沟工艺改造为Bardenpho工艺，同时将表面曝气改造为微孔曝气，强化脱氮的同时降低电耗；深度处理系统增加自养型反硝化深床滤池进一步脱氮，增设臭氧催化氧化池去除难降解有机污染物。提标改造工程中选用的工艺和设备注重节约能耗和药耗，减少运行成本。项目改造后运行稳定良好，出水水质完全达到了地方要求的准Ⅳ类水质标准。

关键词: Bardenpho工艺, 自养型反硝化深床过滤, 臭氧催化氧化, 氧化沟改造, 准Ⅳ类出水标准

Abstract:

The scale of a sewage treatment plant in Weifang is 6×10⁴ m³/d，and the original effluent quality comply with class I a discharge standard. The effluent quality will be improved to quasi class Ⅳ water quality in the upgrading and reconstruction project. According to the plant characteristics of high proportion of influent industrial wastewater，high influent TN concentration and difficult degradation of organic pollutants，the existing biochemical system Carrousel oxidation ditch process was transformed into bardenpho process，and the surface aeration will be transformed into microporous aeration to strengthen nitrogen removal and reduce power consumption. In the advanced treatment system，autotrophic denitrification deep bed filter was added for further nitrogen removal，and ozone catalytic oxidation tank was added to remove refractory organic pollutants. The process and equipment selected in the bid upgrading and reconstruction project paid attention to saving energy and drug consumption and reducing operation cost. After the reconstruction，the project run stably，and the effluent quality fully met the quasi class Ⅳ water quality standard required by the local government.

Key words: Bardenpho process, autotrophic denitrification deep bed filtration, ozone catalytic oxidation, oxidation ditch reconstruction, quasi class Ⅳ effluent standard

中图分类号: 

• X703