表面水力负荷对锰渣陶瓷球填料人工湿地的影响研究

The influence of the hydraulic surface loading for the artificial wetland using manganese slag ceramic ball as filler

云贵高原地区农村面源污染严重。参照贵州铜仁农村面源污水配制模拟污水,研究了表面水力负荷对锰渣陶瓷球填料人工湿地的影响。结果表明,该人工湿地的最佳表面水力负荷为0.55m^3/(m^2·d),此时COD、氨氮、硝态氮和TP去除率分别为90.12%、76.45%、70.04%、87.48%。以锰渣陶瓷球代替砾石作为人工湿地填料能显著提高人工湿地对污染物的去除能力。

Non-point source pollution in rural areas of Yunnan-Guizhou Plateau is serious. The influence of sur-face hydraulic loading on manganese slag ceramic ball artificial wetland was studied according to simulated wastewater of non-point source pollution,taking Tongren for instance. Results showed that the excellent surface hydraulic loading of the system was 0.55 m3/（m2 · d） , with removal rates of COD,ammonia nitrogen,nitrate nitrogen and TP 90.12% , 76.45% ,70.04% and 87.48% ,respectively. The removal rate of pollutants was improved significantly by using man-ganese slag ceramic ball as filler instead of gravel in artificial wetland.