采用太阳能微动力A^O+潜流人工湿地组合工艺处理安徽某农村生活污水,介绍了工艺参数,对不同负荷下该工艺处理效果进行了分析。结果表明,该工艺抗冲击负荷能力强,出水各项指标稳定达到《城镇污水处理厂污染物排放标准》(GB18918-2002)一级A标准,对BOD5、COD、SS、NH3-N、TN、TP的平均去除率分别为91.83%、89.51%、95.47%、89.51%、85.88%、91.56%。同时该工艺经济效益良好,可节约电费约3.3万元/a,并具备自动化程度高、氮磷去除率高、节能环保的特点,可为中南地区同类农村生活污水处理提供借鉴。
The combined process of solar micro-power A^2O and subsurface-flow constructed wet- land was used for treatment of rural domestic sewage in Anhui Province. The parameters of the combined process were introduced, and the treatment efficiency of the combined process was analyzed. The results showed that the combined process had strong resistance to shock loading, and the average removal rates of BODs, COD, SS, NH3 -N, TN and TP were 91.83%, 89.51%, 95.47%, 89.51%, 85.88% and 91.56% , respectively, which met the first level A criteria specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918 -2002 ). The combined process has characteristics of excellent economic benefit with an annual electricity savings of about 33 000 yuan, a high degree of automation, high nitrogen and phosphorus removal rate, energy saving and environmental protection, which can provide reference for similar rural domestic sewage treatment in central south regions of China.