不同填料的人工绿地对生活污水的净化效果试验

Experiment on purification effect of constructed green land with different filling materials on domestic sewage

在人工绿地模型试验中,使用页岩陶粒、石灰石、沸石为填料,对生活污水进行处理,分析了3种填料的物理、化学性能,研究了它们对污水处理效果的影响。结果表明:对COD的去除效果:页岩陶粒>石灰石>沸石;对TP的去除效果:沸石>页岩陶粒>石灰石;对TN的去除效果:沸石>页岩陶粒>石灰石;对NH3-N的去除效果:沸石>页岩陶粒>石灰石。

Domestic sewage was treated in the constructed green land model with different filling materials, including shale pottery grain, lime stone, and zeolite. The physical and chemical properties of those three filling materials and their effects on wastewater treatment were analyzed. The results were as follows： the rank of removal efficiency of COD of the three materials was shale pottery grain 〉 lime stone 〉 zeolite; the rank of removal efficiency of TP of the three materials was zeolite 〉 shale pottery grain 〉 lime stone; the rank of removal efficiency of TN of the three materials was zeolite 〉 shale pottery grain 〉 lime stone ; the rank of removal efficiency of NH3-N of the three materials was zeolite 〉 shale pottery grain 〉 lime stone.