Abstract：
Constructed wetland systems have been widely used in China due to their advantages of good treatment effect, low cost and environmental friendliness. However, traditional constructed wetlands have challenges in application such as deactivation due to filler clogging, difficulty in filler replacement and low adaptability. To address the above problems, this research proposes a modular filler design constructed wetland based on the concept of assembly construction, which can quickly replace the clogged filler without destroying the overall structure of the wetland. Four commonly used fillers were selected and applied to the pilot system of the assembled constructed wetland in this study, in order to investigate the purification effect of the constructed wetland system with different filler module combinations (CW1, CW2, CW3) on the simulated wastewater. The results showed that the filler combination CW1 was the best for the removal of NH4+-N, and for TP and COD, CW2 has the best removal effect. Therefore, the assembled constructed wetland is adjustable and substantially reduces the maintenance cost, which provides technical guidance for its application in engineering.
摘要：
人工湿地系统因其处理效果好等优点,在我国得到了广泛的应用,低成本和环境友好。然而,传统的人工湿地在应用中存在挑战，如填料堵塞导致的失活，填料更换困难，适应性低。为解决上述问题,本研究提出了一种基于组装构造概念的模块化填料设计人工湿地，可以在不破坏湿地整体结构的情况下快速更换堵塞的填料。本研究选择了四种常用的填料，并将其应用于组装式人工湿地的中试系统。为了考察不同填料模块组合(CW1、CW2、CW3)的人工湿地系统对模拟废水的净化效果。结果表明，填料组合CW1对NH4+-N的去除效果最好，对于TP和COD，CW2具有最好的去除后果。因此,组装的人工湿地是可调节的，大大降低了维护成本，为其在工程中的应用提供了技术指导。
