郑州市某污水处理厂运行分析

Operation Analysis of a Sewage Treatment Plant in Zhengzhou City

郑州市某污水处理厂设计规模5万m3/d,污水二级生化处理采用改良氧化沟工艺。根据进水特点,参考其他运行良好的污水处理厂确定处理工艺及设备,自2016年4月中旬运行以来,污染物去除率较高,主要出水水质指标稳定达到《城镇污水处理厂污染物排放标准》(GB18918-2002)一级A标准[1]。

The design capacity of a sewage treatment plant in Zhengzhou is 5×104 m3/d, and the secondary biological treatment of the sewage treatment plant is using a modified oxidation ditch process. According to the water features, referring to other well-sewage treatment plants, the processing technology and equipments has be determined. From mid-April 2016 to date, pollutant removal rate is higher, at the same time, the main effluent qualities are stable and meeting the first standard A criteria of GB 18918-2002.