摘要： 针对猪场沼液氮磷浓度高、有机物含量大且可生化性差等特点，采用A/O-序批式生物膜反应器-氧化塘-人工湿地组合工艺对沼液进行深度处理。处理规模400 m³/d，工程总投资117.5万，运行费用1.46元/（m³·d）。运行结果表明，经过该组合工艺处理后COD_Cr、BOD₅、SS、NH₃-N、TP去除率分别为85.93%、79.84%、89.86%、94.78%、88.67%，出水指标均符合《畜禽养殖业污染物排放标准》（GB 18596-2001）要求。

关键词: 猪场沼液, A/O工艺, SBBR工艺, 氧化塘, 人工湿地

Abstract: According to the characteristics of hogpen biogas slurry,such as high concentration of nitrogen and phosphorus,high organic matter content and poor biodegradability,the combined process,A/O-sequencing batch biofilm reactor(SBBR)-oxidation pond-constructed wetlands(CW),has been used for the advanced treatment of hogpen biogen slurry. Its treatment capacity is 400 m³/d,total investment CNY1,175,000 and running costs CNY1.46/(m³·d). The running results show that after the wastewater has been treated by the combined process, the removing rates of COD_Cr,BOD₅,SS,NH₃-N and TP are 85.93%,79.84%,89.86%,94.78% and 88.67%,re-spectively. All the relevant indexes of effluent can meet the requirements for the Discharge Standard of Pollutants for Livestock and Poultry Breeding(GB 18596-2001)

Key words: hogpen biogas slurry, A/O process, sequencing batch biofilm reactor, oxidation pond, constructed wetlands

中图分类号: 

• X703