厌氧折流板-垂直潜流人工湿地处理农村生活污水的研究

Research on Treatment of Domestic Sewage with ABR Reactor-vertical Subsurface Flow Constructed Wetland

采用厌氧折流板反应器-垂直潜流人工湿地(ABR-SSFW)组合工艺处理农村生活污水.实际运行结果表明:当水力停留时间(HRT)大于12 h时,组合工艺对COD,TN,NH3-N,TP的平均去除率分别为85.5%,42.8%,34.67%,41.97%;当HRT小于12 h时,组合工艺对COD,TN,NH3-N,TP各项的去除率都有明显下降.在对COD的去除中ABR发挥的作用较大,占到了60%以上;在对NH3-N,TN,TP的去除中,SSFW作用较大.

The combined process that anaerobic baffled reactor and subsurface flow constructed wetland （ABR-SSFW） to treatment rural domestic wastewater were studied. The actual experiment results indicate that at a HRT of above 12 h, the average removal rates of COD, TN, NH3-N, TP are 85.5 % ,42.8 %, 34.67 %, 41.97 % respectively for combined process. At a HRT of below 12 h, the removal rates of COD, TN, NH3-N, TP for combined process has the obvious drop. For the remove of COD, role of ABR is larger, accounting for more than 60 %. For the remove of NH3-N,TN,TP vertical SSFW makes larger contribution.