Constructed wetland for enhanced nitrogen removal of carbon limited wastewater and its economic and environmental assessment: A review.

IF 9.7 1区 环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL Journal of Cleaner Production Pub Date : 2025-03-13 DOI:10.1016/j.jclepro.2025.145272
Mengni Tao, Zhaoqian Jing, Yu-You Li
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Abstract

Constructed wetlands (CWs) are regarded as a common method for the treatment of low carbon wastewater, yet their conventional application often results in ineffective performance. To enhance denitrification, several strategies are investigated in CWs for the treatment of carbon-limited wastewater. These strategies include the addition of external carbon sources such as plant-based materials and biodegradable synthetic polymers, embedment of biochar or autotrophic denitrification-based materials as the alternative fillings, and hybrid combination methods like multi-stage CWs and microbial fuel cell combined with CWs. This review comprehensively discusses the nitrogen removal performance, dominant functional microorganisms, and underlying mechanisms of these enhanced measures. Furthermore, a thorough environmental-economic assessment was provided, evaluating the cost-effectiveness and greenhouse gas (GHG) emissions of these strategies. By critically assessing the operational advantages and limitations of enhanced CW systems, this review presents strategic insights for the design and successful implementation of large-scale CWs in the treatment of carbon-limited wastewater.

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来源期刊
Journal of Cleaner Production
Journal of Cleaner Production 环境科学-工程:环境
CiteScore
20.40
自引率
9.00%
发文量
4720
审稿时长
111 days
期刊介绍: The Journal of Cleaner Production is an international, transdisciplinary journal that addresses and discusses theoretical and practical Cleaner Production, Environmental, and Sustainability issues. It aims to help societies become more sustainable by focusing on the concept of 'Cleaner Production', which aims at preventing waste production and increasing efficiencies in energy, water, resources, and human capital use. The journal serves as a platform for corporations, governments, education institutions, regions, and societies to engage in discussions and research related to Cleaner Production, environmental, and sustainability practices.
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