园林地渗滤系统处理农村养殖废水的研究

Treatment of Livestock Wastewater in Rural Areas by Garden Land Infiltration System

在葡萄园中建立了园林地渗滤系统来处理农村养殖废水。系统运行过程中,对SS、NH+4-N、TN、TP和COD的平均去除率分别为86.1%、78.0%、78.2%、94.6%、76.8%,除了出水NH+4-N浓度略高外,其他出水水质指标均达到了《畜禽养殖业污染物排放标准》(GB 18596—2001)的要求。园林地渗滤系统中所种植的葡萄品质指标与对照组相比没有明显变化;渗滤系统土壤中的NH+4-N和NO-3-N含量显著上升,其他指标没有明显变化。

A garden land treatment in rural areas. During infiltration system was established in a vineyard for livestock wastewater the operation period, the average removal rates of SS, NH4^＋- - N, TN, TP and COD were 86.1% , 78.0% , 78.2%, 94.6% and 76.8%, respectively. Apart from NH4^＋- - N, other parameters of the effluent met the Discharge Standard of Pollutants for Livestock and Poultry Breed- ing （ GB 18596 - 2001 ）. The fruit quality of grapes showed no significant difference between the garden land infiltration system and in control plot. However, NH4^＋ - N and NO3^- - N contents of the soil in- creased significantly in the system. Key words： garden land; infiltration system; livestock wastewater; ecological treatment