A/O工艺在乡镇污水处理中的应用研究

Study on the application of A/O process in township wastewater treatment

文章以营口地区某镇污水处理厂为调查研究对象,探索A/O处理工艺在处理农村污水中的可行性。结果表明:2013~2017,经此工艺处理后的废水CODcr,BOD5,氨氮,SS,TN,TP等6大主要指标出水水质均低于城镇污水处理厂设计参考标准,处理效果非常理想。系统脱氮除磷效果较好,NH3-N去除率高达85%以上,TP去除率约为88%左右。但考虑到运行成本,建议对处理后的废水再利用,以节约成本。

This paper takes a town sewage treatment plant in Yingkou area as the research object. The feasibility of the A/ O treatment process in treating rural sewage was explored. The results showed that the effuent quality of six main indexes, such as CODcr, BOD5, NH3-NSSNTNTP, and so on, was lower than the design reference standard of the municipal wastewater treatment plant, and the results showed that the water quality of the wastewater treated by this process was lower than that of the design reference standard of the municipal wastewater treatment plant. The removal rate of NH3-N is up to 85% or more and the removal rate of TP is about 88%. However, considering the operation cost, it is suggested to reuse the treated wastewater in order to save the cost.