上海市长兴岛污水处理厂一期工程设计

Design of First-phase Project of Changxingdao WWTP in Shanghai

长兴岛污水处理厂规模为5.5×104m3/d,一期工程规模为2.5×104m3/d,出水执行《城镇污水处理厂污染物排放标准》(GB 18918—2002)的二级标准。在工程设计中采用了闭式双泥龄A/O工艺,可根据进水水质情况灵活地调配运行工况,在保证出水水质的前提下,达到了节能、减少占地和降低造价的目的。详细介绍了该工艺的特点以及各主要构筑物的设计参数。

The design capacity of Changxingdao WWTP is 5.5×10^4m^3/d, and that of the first-phase project is 2.5 ×10^4m^3/d. The effluent quality meets the second criteria specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant （ GB 18918 - 2002 ）. The closed doub- le-sludge age A/O process is used to adapt different influent quality with flexibility. It will not only meet the discharge standard, but also save energy, decrease land occupation and the cost. The features of the process as well as the design parameters of main structures are introduced.