Mesocosm constructed wetlands for tetracycline-stressed effluent treatment: Evaluating substrate and vegetation synergies

IF 6.3 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of water process engineering Pub Date : 2025-02-15 DOI:10.1016/j.jwpe.2025.107194

Lan Yang , Kai Chen , Yanxia Ma , Long Chen , Aiyi Wang , Farhan Hafeez , Jiabin Wang , Junyu Zheng , Zhuo Li , Hongtao Zhu

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Abstract

Tetracycline (TC) in treated wastewater poses considerable environmental risks. Constructed wetlands (CWs) are crucial for mitigating TC contamination and enhancing wastewater treatment. This study evaluated the performance of three mesocosm CWs, each planted with different emergent macrophytes, under exposure to 1 mg/L TC. Results revealed notable improvements in feeding tailwater quality, with removal rates of total nitrogen, total phosphorus, and chemical oxygen demand ranging from 30 to 40 %, 80–85 %, and 20–25 %, respectively. Nitrate removal primarily occurred through plant absorption. After 81 days, Typha orientalis C. Presl in CW-B achieved the highest biomass (1962.9 g/m²), demonstrating superior carbon sequestration potential compared to Canna indica L. and Phragmites australis. The rhizosphere bacteriome of Phragmites australis and Typha orientalis C. Presl showed greater efficacy in removing NH₄⁺-N, while that of Canna indica L. was more effective in removing NO₃⁻-N, TN, and TP. These findings highlight the pivotal role of CW vegetation in contaminant removal and carbon sequestration, emphasizing the synergistic interactions among substrate, vegetation, and rhizosphere microbiota in treating secondary effluent under TC stress.

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来源期刊

Journal of water process engineering Biochemistry, Genetics and Molecular Biology-Biotechnology

CiteScore

10.70

自引率

8.60%

发文量

846

审稿时长

24 days

期刊介绍： The Journal of Water Process Engineering aims to publish refereed, high-quality research papers with significant novelty and impact in all areas of the engineering of water and wastewater processing . Papers on advanced and novel treatment processes and technologies are particularly welcome. The Journal considers papers in areas such as nanotechnology and biotechnology applications in water, novel oxidation and separation processes, membrane processes (except those for desalination) , catalytic processes for the removal of water contaminants, sustainable processes, water reuse and recycling, water use and wastewater minimization, integrated/hybrid technology, process modeling of water treatment and novel treatment processes. Submissions on the subject of adsorbents, including standard measurements of adsorption kinetics and equilibrium will only be considered if there is a genuine case for novelty and contribution, for example highly novel, sustainable adsorbents and their use: papers on activated carbon-type materials derived from natural matter, or surfactant-modified clays and related minerals, would not fulfil this criterion. The Journal particularly welcomes contributions involving environmentally, economically and socially sustainable technology for water treatment, including those which are energy-efficient, with minimal or no chemical consumption, and capable of water recycling and reuse that minimizes the direct disposal of wastewater to the aquatic environment. Papers that describe novel ideas for solving issues related to water quality and availability are also welcome, as are those that show the transfer of techniques from other disciplines. The Journal will consider papers dealing with processes for various water matrices including drinking water (except desalination), domestic, urban and industrial wastewaters, in addition to their residues. It is expected that the journal will be of particular relevance to chemical and process engineers working in the field. The Journal welcomes Full Text papers, Short Communications, State-of-the-Art Reviews and Letters to Editors and Case Studies