In view of the characteristics of dispersed and small discharge of rural sewage,the feasibility of biological aerated filter and modular constructed wetland combined process for treatment of rural domestic wastewater was analyzed in this paper.The results showed that the average removal rates of COD,ammonia nitrogen,TN,TP were 90.05％,95.29％,67.65％,91.42％,respectively,the effluent quality was stable and reached the first class A of the "Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant"(GB 18918-2002).In the combined process,the sedimentation tank and anaerobic pool were pretreatment,which could removal partial suspended solid,COD and nitrogen.Biological aerated filter played a key role in the removal of pollutant,modular constructed wetland for advanced processing unit.The combined process had the advantages of low running cost and automatic operation,and could be applied to the treatment of scattered domestic sewage in rural areas.%针对农村生活污水排放分散、流量小的特点,探讨了曝气生物滤池-模块化人工湿地组合工艺处理农村生活污水的可行性.实验结果表明,组合工艺对COD、NH3-N、TN、TP的平均去除率分别为90.05％、95.29％、67.65％、91.42％,出水水质较稳定,可达GB 18918-2002《城镇污水处理厂污染物排放标准》一级A标.组合工艺中沉淀池、厌氧池为前处理,曝气生物滤池为核心处理工艺,模块化人工湿地为深度处理单元.该组合工艺运行成本低、可全天候自动运行,适用于农村分散式生活污水的处理.
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