新农村建设污水处理工程实例

Engineering Example for Wastewater Treatment of New Countryside Construction

山海关区新民居污水治理工程采用水解酸化+接触氧化+曝气生物滤池为主的工艺进行污水治理,实际运行结果表明:系统运行稳定,处理出水COD≤48 mg.L-1,BOD5≤9 mg.L-1,SS≤10 mg.L-1,NH3-N≤4.5 mg.L-1,TP≤0.47 mg.L-1,处理出水达到《城镇污水处理厂污染物排放标准》(GB 18918-2002)一级A标准,出水用于农村绿化和农灌,经济效益和环境效益明显。

The engineering example for wastewater treatment of Shanhaiguan new residence was introduced. Hydrolytic acidification and contact oxidation and biological aerated filter were used in the project. The running results show that the process has stable treatment efficiency. COD in the treated effluent were ≤48 mg. L-N, BOD5 ≤ 9 mg· L-N, SS ≤ 10 mg· L-N, NH3-N ≤4.5 mg· L-1, TP ≤ 0.47 mg·L-1 and the effluent quality can meat the criteria in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant （GB8978-1996） . The treated effluent is used in greening and irrigation, and has obvious environmental benefit and economic benefit.