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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。
In the vineyard to establish a garden infiltration system to deal with rural farming wastewater. During the system operation, the average removal rates of SS, NH + 4-N, TN, TP and COD were 86.1%, 78.0%, 78.2%, 94.6% and 76.8% respectively. Except for the slightly higher concentration of NH 4 + -N in effluent , Other water quality indicators have reached the “livestock and poultry breeding pollutant discharge standards” (GB 18596-2001) requirements. No significant changes were observed in the quality of grapes planted in the infiltration system of garden land. Compared with the control group, the content of NH + 4-N and NO-3-N in the soil of the infiltration system increased significantly, while the other indexes did not change obviously.