填料在人工湿地中的作用及其强化人工湿地净化性能的研究进展

填料是构成人工湿地系统的核心成分，也是影响人工湿地系统污染物净化能力的关键因素。选择合适的填料对于人工湿地系统的建设和废水水质净化至关重要。首先阐述了填料在人工湿地系统中的作用，其次分析了适宜用于构建人工湿地的填料特点和选择原则，最后总结了当前通过填料改性、制备缓释碳源填料以及采用组合填料来强化人工湿地系统净化污染物的研究进展，并提出了今后的研究方向。可为人工湿地的构建和推广应用提供参考和借鉴。

Research Progress on the Role of Fillers in Constructed Wetlands and Their Enhancement of Purification Performance

Filler is the core component of the constructed wetland system and also the key factor affecting the pollutant purification ability of the constructed wetland system. The selection of suitable fillers is very important for the construction of constructed wetland system and the purification of wastewater. Firstly, the role of fillers in the constructed wetland system was described. Secondly, the characteristics and selection principles of fillers suitable for the construction of constructed wetlands were analyzed. Finally, the current research progress through filler modification, preparation of slow-release carbon source fillers and the use of composite fillers to strengthen the purification of pollutants in the constructed wetland system were summarized, and the future research direction was proposed. It can provide references for the construction and promotion of constructed wetlands.