铁碳强化人工湿地微生物燃料电池处理四环素废水：效能、发电和铁碳的作用

IF 9.7 1区环境科学与生态学 Q1 AGRICULTURAL ENGINEERING

Bioresource Technology Pub Date : 2025-04-21 DOI:10.1016/j.biortech.2025.132578

Zhiyuan Du , Sai Bai , Jin Qian , Peng Zhan , Fengping Hu , Xiaoming Peng

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引用次数: 0

摘要

四环素类抗生素废水对人类健康和环境构成严重威胁。本研究构建了四组不同配置的实验室规模的人工湿地（CWs），以评估铁碳（Ic）耦合的人工湿地微生物燃料电池（CW-MFC）系统对不同污染物去除和生物电产生的去除效率。结果表明，添加Ic显著促进了污染物的去除。COD、TN、NH4+-N和TP的最大去除率分别为86.13%、81.60%、79.07%和97.35%。特别是TC的去除率达到了100%。3D-EEM分析进一步证实了Ic在促进有机物降解中的作用。Ic CW MFC系统在发电性能方面也表现出优越性，峰值功率密度为7.90 mW/m2（内阻为10Ω），比传统CW-MFC高88.07%，内阻低68.21%。因此，当Ic用作CW-MFC系统的基板时，其净化和发电性能最佳。RDA分析用于阐明四种CWs、优势菌株和环境因素（pH、ORP和DO）之间的关系。添加TC（5-20mg/L）后，传统CW的性能显著下降，但Ic CW MFC可以有效缓解高浓度TC废水引起的抑制作用。通过典型循环实验和表征，进一步分析了Ic CW MFC在TC废水中的工作机理。结果表明，Ic CW MFC是一种高效经济的废水处理技术，在处理含TC废水方面具有巨大的潜在应用价值。

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Iron-carbon enhanced constructed wetland microbial fuel cells for tetracycline wastewater treatment: Efficacy, power generation, and the role of iron-carbon

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Iron-carbon enhanced constructed wetland microbial fuel cells for tetracycline wastewater treatment: Efficacy, power generation, and the role of iron-carbon

Tetracycline (TC) antibiotics wastewater is a serious threat to human health and environment. In this study, four groups of laboratory-scale constructed wetlands (CWs) with different configurations were constructed to evaluate the removal efficiency of iron-carbon (Ic) coupled constructed wetland microbial fuel cells (CW-MFC) system for different pollutants removal and bioelectricity production. The results showed that the addition of Ic significantly promoted the removal of contaminants. The maximum removal rates of COD, TN, NH₄⁺-N, and TP were 86.13 %, 81.60 %, 79.07 %, and 97.35 %, respectively. In particular, the removal rates of TC reached 100 %. 3D-EEM analysis further confirmed the role of Ic in promoting organic degradation. The Ic-CW-MFC system also showed superiority in power generation performance with peak power density of 7.90 mW/m² (internal resistance is 10 Ω), 88.07 % higher than the traditional CW-MFC, while the internal resistance was 68.21 % lower. Therefore, when Ic is used as the substrate of CW-MFC system, its decontamination and electricity generation performance is the best. Analysis of RDA was used to elucidate the relationship of four CWs, dominant strains and environmental factors (pH, ORP and DO). The performance of traditional CWs decreased significantly after TC addition (5–20 mg/L), but Ic-CW-MFC could effectively alleviate the inhibition effect caused by high-concentration TC wastewater. The working mechanism of Ic-CW-MFC in TC wastewater was further analyzed through typical cycle experiment and characterization. The results showed that Ic-CW-MFC is an efficient and economical wastewater treatment technology, which has great potential application value in the treatment of wastewater containing TC.

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来源期刊

Bioresource Technology 工程技术-能源与燃料

CiteScore

20.80

自引率

19.30%

发文量

2013

审稿时长

12 days

期刊介绍： Bioresource Technology publishes original articles, review articles, case studies, and short communications covering the fundamentals, applications, and management of bioresource technology. The journal seeks to advance and disseminate knowledge across various areas related to biomass, biological waste treatment, bioenergy, biotransformations, bioresource systems analysis, and associated conversion or production technologies. Topics include: • Biofuels: liquid and gaseous biofuels production, modeling and economics • Bioprocesses and bioproducts: biocatalysis and fermentations • Biomass and feedstocks utilization: bioconversion of agro-industrial residues • Environmental protection: biological waste treatment • Thermochemical conversion of biomass: combustion, pyrolysis, gasification, catalysis.