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Research on the effect of sewage concentration on treatment efficiency of Constructed wetlands

机译：污水浓度对构建湿地处理效率的影响研究

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By changing the surface flow (SF) and subsurface flow (SSF)constructed wetlands inflow water total nitrogen (TN) concentrations, with 6 plant species (purple leaf canna, water onion, water hyacinth, water celery, calamus, reed) in comparative experiments, comparative analysis of the 6 different SF and SSF constructed wetlands treatment rate with the variation of the concentration obtained in the 6 different plant SF and SSF constructed wetlands, the optimal concentration theory, theory of optimal removal rate, the actual optimal concentration, the actual optimal removal rate and TN maximum daily processing load. The results showed that: in the 6 different plant of SF and SSF constructed wetlands for TN removal efficiency decreased as the concentration increased, different plant, different levels of treatment rate reduction, and removal value of SSF was lower than SF. Purple leaf canna removal reduced the minimum, SF processing rate decreased 17.07%, SSF dropped 15.94%; Reed removal rate decreased obviously, the SF processing rate decreased 20.86%, SSF dropped 18.2%. Meanwhile, according to the result of the experiment, the maximum TN daily remove quantity in the six species of plants of SF constructed wetland was 547.20 g·m~(-2)·d~(-1); in SSF constructed wetland was 577.60 g·m~(-2)·d~(-1).
机译：通过改变表面流动（SF）和地下流动（SSF）构造的湿地流入水总氮（TN）浓度，在比较实验中有6种植物物种（紫色叶Canna，浇水，水葫芦，水芹菜，葫芦，芦苇） ，6种不同的SF和SSF构建湿地处理率的对比分析随着6种不同植物SF和SSF构建湿地获得的浓度的变化，最佳浓度理论，最佳去除率理论，实际最佳浓度，实际最佳清除速率和TN最大日常处理负荷。结果表明：在6种不同的SSF植物中，由于浓度增加，不同的植物，治疗率降低，SSF的去除值低于SF，所以SF和SSF构造的湿地降低。紫叶Canna去除降低最低，SF处理率下降17.07％，SSF降低了15.94％;芦苇去除率明显下降，SF处理率降低了20.86％，SSF降低了18.2％。同时，根据实验的结果，SF构造湿地六种植物中的最大TN日去除量为547.20g·m〜（-2）·d〜（-1）;在SSF建造的湿地中为577.60g·m〜（-2）·d〜（-1）。

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