深圳市光明污水处理厂低碳高氮污水处理工艺设计

Treatment Process Design of Sewage with Low Carbon and High Nitrogen in Shenzhen Guangming Sewage Treatment Plant

深圳市光明污水处理厂位于深圳市宝安区,远期设计总规模为25×104 m3/d,近期规模为15×104 m3/d。其污水具有明显的低碳高氮的特征,尤其雨季进水的碳源更低,这在我国南方的城市污水处理中具有一定的普遍性。该污水厂采用强化脱氮改良A2/O工艺,尾水达到《城镇污水处理厂污染物排放标准(》GB 18918—2002)的一级A标准。详细介绍了该工程的工艺流程、应对低碳高氮雨季合流污水的处理措施、主要构筑物的设计参数及工艺特点。

The Guangming Sewage Treatment Plant is located in Baoan district in Shenzhen, of which the long-term scale is 25 ×104 m^3/d, and the short-term scale is 15× 104 m^3/d. The sewage is characterized by low carbon and high nitrogen, especially much lower carbon source during rainy season, as it is common in municipal wastewater treatment in southern China to some extent. The plant adopts the improved A^2/O process for enhanced nitrogen removal, and the treated effluent quality meets the first class A criteria specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant （GB 18918 -2002）. The process flow of the project, treatment measures for combined sewage with low carbon high nitrogen in rainy season, design parameters of main structures and the process features are introduced.