南宁市五象污水处理厂一期工程设计

A Design of Phase I Project of Nanning Wuxiang Sewage Treatment Plant

南宁市五象污水处理厂远期规模为70万m3/d,近期规模为10万m3/d,一期规模为5万m3/d,出水执行GB 18918—2002《城镇污水处理厂污染物排放标准》中的一级B标准。在工程设计中采用了可切换式倒置AAO工艺,可以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。

With the background of Nanning Wuxiang Sewage Treatment Plant(its scales of long term,short term and phase I: 700 000 m 3 /d,100 000 m 3 /d and 50 000 m 3 /d),the outflow is carried out by Class I Standard B of GB 18918—2002 Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant.The switchable inverted AAO process is adopted in the project design,and moreover,operation condition can be adjusted easily based on inflow quality to arrive at saving energy,reducing occupation and cost in the premise of ensuring the quality.Finally,the relevant features and design parameters of main structures are presented in detail in this paper.