人工湿地除磷基质及其净化机理研究进展

Research progress on phosphorus removal fillers and purification mechanism of constructed wetlands

基质作用是人工湿地系统除磷的主要机制,通过基质拦截吸附、络合沉淀等途径,实现人工湿地除磷目标,因此如何选用高效除磷功能的基质是提高人工湿地除磷力的关键。通过综述国内外在人工湿地中除磷基质方面的研究进展,介绍了国内外除磷基质种类及其应用优势和限制条件,列举了代表性除磷基质种类,分析了基质除磷主要机制及相关影响因素,剖析了当前存在的问题,为现阶段人工湿地除磷基质的选择与配置研究实践提供相关参考。

The role of fillers is the main mechanism of phosphorus removal in constructed wetland system.The phosphorus removal target of constructed wetland can be achieved through the interception and adsorption of fillers and complexation precipitation.Therefore,the key to improve the phosphorus removal capacity of constructed wetlands is how to select fillers with high phosphorus removal function.This paper reviews the research progress of phosphorus removal fillers in constructed wetlands at home and abroad,introduces the types of phosphorus removal fillers at home and abroad,their application advantages and limitations,lists the representative types of phosphorus removal fillers,analyzes the main mechanism and related influencing factors of phosphorus removal by fillers,and analyzes the existing problems,so as to study the selection and configuration of phosphorus removal fillers in constructed wetlands at this stage practice provides relevant reference.