The application of constructed wetlands for the removal of human pathogens and conventional fecal indicators: A critical review

IF 2.6 4区环境科学与生态学 Q3 ENGINEERING, CHEMICAL

Environmental Progress & Sustainable Energy Pub Date : 2026-01-30 Epub Date: 2025-11-14 DOI:10.1002/ep.70154

Yi Ding, Feng He, Yonghang Zeng, Siyi Wang, Yuewen Chen, Yuxin Cui, Ruoxi Ma, Xingpo Liu

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引用次数: 0

Abstract

Reduction of human pathogens from wastewater is of great importance to human health. Constructed wetlands (CWs) are environment-friendly systems that are capable of reducing chemical pollution as well as pathogens from wastewater. However, the insufficient knowledge on the removal of human pathogens and fecal indicator bacteria in CWs due to the complexity of removal mechanisms and influencing factors impedes an accurate understanding and optimization design of this eco-sustainable technology, which is necessary for further improvement of CW performance. The pathogen removal process is complex and mainly influenced by hydraulic loading rate and retention time, macrophyte, seasonal variation, substrate and wetland type. The main removal mechanisms include sedimentation and filtration, predation and photoinactivation. Generally, subsurface flow CWs allow a better reduction of pathogens than free water surface flow CWs, whereas hybrid CW systems have the optimal removal performance. Finally, suggestions were provided for improving pathogen removal in CWs.

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人工湿地在去除人类病原体和常规粪便指标方面的应用：综述

减少废水中的人类病原体对人类健康具有重要意义。人工湿地（CWs）是一种环境友好型系统，能够减少废水中的化学污染和病原体。然而，由于去除机制和影响因素的复杂性，对化粪池中人类病原体和粪便指示菌的去除认识不足，阻碍了对这一生态可持续技术的准确理解和优化设计，这是进一步提高化粪池性能所必需的。病原菌去除过程复杂，主要受水力加载速率和滞留时间、大型植物、季节变化、基质和湿地类型的影响。主要的去除机制包括沉淀过滤、捕食和光失活。一般来说，与自由水面流动的化学武器相比，潜流化学武器能够更好地减少病原体，而混合化学武器系统具有最佳的去除性能。最后，提出了进一步提高CWs对病原菌去除率的建议。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Environmental Progress & Sustainable Energy 环境科学-工程：化工

CiteScore

5.00

自引率

3.60%

发文量

231

审稿时长

4.3 months

期刊介绍： Environmental Progress , a quarterly publication of the American Institute of Chemical Engineers, reports on critical issues like remediation and treatment of solid or aqueous wastes, air pollution, sustainability, and sustainable energy. Each issue helps chemical engineers (and those in related fields) stay on top of technological advances in all areas associated with the environment through feature articles, updates, book and software reviews, and editorials.