生物滤塔-人工湿地组合工艺对农村生活污水净化效果研究
Treatment performance of the combined biofilter and constructed wetland process on rural domestic wastewater
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摘要: 采用厌氧/射流充氧生物滤塔/人工湿地组合工艺处理农村生活污水,考察了组合工艺及其各处理单元对污染物去除的贡献率。在实验室进行了小试,实验结果表明:该组合工艺对污染物具有较好的去除效果,在稳定工况下,组合工艺对COD、NH+4-N、TN和TP的平均去除率分别为85.4%、74.5%、75.9%和78.3%。生物滤塔能有效完成对有机物的降解和硝化作用,人工湿地进一步去除氮、磷等污染物。Abstract: The combined process of anaerobic-jet oxygenation biological oxidation biofilter and constructed wetland was used to treat the rural domestic wastewater, and the removal efficiency of each treatment unit was also investigated. The results showed that the combined process had good and stable removal efficiency, and the removal rates for COD, NH+4-N,TN and TP were 85.4%, 74.5%, 75.9% and 78.3%, respectively. The biofilter can effectively complete the organic substance degradation and nitrification, and the constructed wetland system could further remove the nutriments, such as nitrogen and phosphorus.
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Key words:
- rural domestic wastewater /
- anaerobic-jet oxygenation /
- biofilter /
- constructed wetland
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