净水技术2025，Vol.44Issue(1)：16-25,177,11.DOI:10.15890/j.cnki.jsjs.2025.01.003
人工湿地常用填料及其不同改性方式对主要污染物净化效果研究进展
Research Advances on Common Fillers and Different Modification Modes of Constructed Wetlands for Purification Effectiveness of Main Pollutants
摘要
Abstract
[Objective]The purpose of this study is to investigate the purification effectiveness of four fillers commonly used in wetlands(i.e.,zeolite,ceramsite,quartz sand and gravel)on major water pollutants removal(i.e.,organic matter,nitrogen,phosphorus,and certain heavy metal ions).It also analyzes how filling modification techniques enhance purification efficiency,aiming to provide insights into the selection and targeted optimization of constructed wetland fillers.[Methods]Initially,the purification mechanisms of fillings,including direct adsorption,retention,and provision of a substrate for flora,fauna,and microorganisms,are outlined.Subsequently,a detailed analysis is conducted on the purification effectiveness of the four fillings against different pollutants.Meanwhile,a review of current filler modification techniques is presented,highlighting research progress in enhancing fillers purification effectiveness and broadening application scope.[Results]Each type of fillers has advantages in removal of different pollutants due to its inherent physicochemical properties.Common fillers modification techniques(layered double hydroxides coating modification,saturated salt modification,iron salt modification,acid modification,etc.)significantly improve the removal rates of specific pollutants and enhance the purification capacity of the fillers.[Conclusion]This study evaluates the purification effectiveness of common fillers and their modification techniques for major pollutants in water bodies.It is found that there are significant differences in purification effectiveness among different fillers and modification techniques.Therefore,when selecting fillers for artificial wetlands,comprehensive consideration should be given to factors such as the physicochemical properties,cost,and universality of the fillers,based on the types and concentrations of the target pollutants.Meanwhile,enhancing the purification effectiveness of fillers through modification techniques can further optimize the design and operation of constructed wetlands,promoting the application of constructed wetland technology in field of ecological environmental protection.关键词
人工湿地/填料/净化效果/作用机理/改性方式Key words
constructed wetland/fillers/purification effectiveness/purification mechanism/modification mode分类
环境科学引用本文复制引用
刘小婷,张翔凌,沈俊,赵辉,李栩灏,朱浩,蒋晓霞,钟嘉艺..人工湿地常用填料及其不同改性方式对主要污染物净化效果研究进展[J].净水技术,2025,44(1):16-25,177,11.基金项目
国家自然科学基金项目(31670541) （31670541）
