水解酸化+水力增氧床+人工湿地组合工艺处理生活污水的试验研究

Experimental research on treatment of domestic sewage by combined process of hydrolysis acidification+hydraulic aeration bed+artificial wetland

研究了水解酸化-水力增氧床-人工湿地组合工艺对实际生活污水中COD、NH_4^+-N、TN、TP和浊度的去除效果。结果表明,组合工艺对污水中COD、NH_4^+-N、TN、TP和浊度的去除效果显著,平均去除率分别为94.3%、92.0%、60.3%、83.6%、93.4%,出水满足《城镇污水处理厂污染物排放标准》(GB 18918—2002)一级A标准,可用于中水回用。

The removal effect of COD,NH4^＋-N,TN,TP and turbidity in domestic sewage by a combined process with hydrolysis acidification,hydraulic aeration bed and artificial wetland is studied.The results show that the average removal efficiencies of COD,NH4^＋-N,TN,TP and turbidity are 94. 3%,92. 0%,60. 3%,83. 6% and 93. 4% respectively,revealing that the combined process has an excellent removal effect. The treated water can meet the level A standard in China＇s ＂Standard of Pollutant Emission of Urban Sewage Treatment Plant（ GB 18918—2002） ＂,and can be used in domestic way.