农村生活污水处理的组合工艺试验研究

根据农村生活污水的特点,结合人工湿地工艺的优势,采用生物接触氧化与人工湿地相结合的组合工艺对农村生活污水进行了处理试验研究,并探讨了不同负荷对该工艺处理效果的影响。结果表明,组合工艺对农村生活污水具有良好的处理效果,工艺对主要指标CODCr、TN、TP的平均去除率分别达到72.9%、86.6%、89.1%,且进水负荷的变化对去除效率影响较小,出水水质能稳定达到国家一级排放标准。

Experimental Study on Treatment of Rural Domestic Sewage by Combined Technology

According to the characteristics of rural domestic sewage, combined technology of biological contact oxidization and constructed wetland was used for treatment of rural domestic sewage with advantage of constructed wetland. And the effect on efficiency of combined technology by different load were also discussed. The result showed that combined technology had high performance for treating rural domestic sewage. The average removal rates of CODCr, TN and TP were 72.9 %, 86.6 % and 89.1 % respectively, and the effect on removal rate was small by different load, which met requirements of first grade discharging standard.