改良型A^2/O工艺污水处理厂的设计与运行

Design and operation of a sewage treatment plant by modified A^2/O process

某污水处理厂设计规模为5×104 m3/d,其污水处理工艺流程采用改良型A2/O工艺,污泥处理采用直接浓缩脱水工艺。对该工艺流程的主要构筑物、设计参数及运行情况进行了介绍,结果表明,处理后的水质达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)中的一级标准。

The designed scale of the sewage treatment plant discussed is 50 000 m3/d.A modified A2/O process has been used for treating the sewage water,and the sewage sludge is thickened and dewatered directly.The main structures,designed parameters and operation are introduced.The quality of the treated water meets the requirements of the first class of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant（GB 18918—2002）.