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学者姓名:王颖慕

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Structure-activity relationship between crystal plane and pyrite-driven autotrophic denitrification efficacy: Electron transfer and metagenome-based microbial mechanism SCIE
期刊论文 | 2025 , 268 | WATER RESEARCH
WoS CC Cited Count: 2
Abstract&Keyword Cite Version(2)

Abstract :

Pyrite-driven autotrophic denitrification (PAD) has been recognized as a promising treatment technology for nitrate removal. Although the occurrence of PAD has been found in recent years, there is a knowledge gap about effects of crystal plane of pyrite on the performance and mechanism of PAD system. Here, this study investigated the effects of crystal planes ({100}, {111} and {210}) of single-crystal pyrite on denitrification performance, electron transfer, and microbial mechanism in PAD system. The removal efficiency of nitrate in B-{210} reached 100%, which was 1.67-fold and 2.86-fold higher than that of B-{100} and B-{111}, respectively. X-ray photoelectron spectroscopy and electrochemical results indicated that Fe-S bonds of pyrite with {210} crystal plane were more susceptible to breakage by Fe3+ oxidation assault, and leaching microbially available Fe2+ and sulfur intermediates to drive autotrophic denitrification. Metagenomic results suggested that community of functional pyrite-driven denitrifiers varied in response to crystal plane, and abundances of N-S transformation and EETrelated microbes and genes in B-{210} notably up-regulated compared to B-{100} and B-{111}. In addition, this work proposed a dual-mode for electron transfer pathway during pyrite oxidation and nitrogen transformation in PAD system. In B-{210}, Fe(II)- and sulfur-driven denitrifiers obtained electron after pyrite oxidation-dissolution, and the enrichment of pyrite-oxidizing bacteria in B-{210} could enhance the electron transfer from pyrite through electron shuttles. This work highlighted that stronger surface reactivity and electron shuttle effect in B-{210} enhanced electron transfer, leading to favorable PAD performance in B-{210}. Overall, this study provides novel insights into the structure-activity relationship between the crystal plane structure of pyrite and denitrification activity in PAD system.

Keyword :

Autotrophic denitrification Autotrophic denitrification Crystal plane Crystal plane Electron transfer Electron transfer Metagenome analysis Metagenome analysis Pyrite Pyrite

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GB/T 7714 Wang, Yingmu , Chen, Shi , Chen, Yuanjing et al. Structure-activity relationship between crystal plane and pyrite-driven autotrophic denitrification efficacy: Electron transfer and metagenome-based microbial mechanism [J]. | WATER RESEARCH , 2025 , 268 .
MLA Wang, Yingmu et al. "Structure-activity relationship between crystal plane and pyrite-driven autotrophic denitrification efficacy: Electron transfer and metagenome-based microbial mechanism" . | WATER RESEARCH 268 (2025) .
APA Wang, Yingmu , Chen, Shi , Chen, Yuanjing , Xu, Junge , Zhou, Jian , He, Qiang et al. Structure-activity relationship between crystal plane and pyrite-driven autotrophic denitrification efficacy: Electron transfer and metagenome-based microbial mechanism . | WATER RESEARCH , 2025 , 268 .
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Structure-activity relationship between crystal plane and pyrite-driven autotrophic denitrification efficacy: Electron transfer and metagenome-based microbial mechanism Scopus
期刊论文 | 2025 , 268 | Water Research
Structure-activity relationship between crystal plane and pyrite-driven autotrophic denitrification efficacy: Electron transfer and metagenome-based microbial mechanism EI
期刊论文 | 2025 , 268 | Water Research
Efficient nitrogen and phosphorus removal performance and microbial community in a pilot-scale anaerobic/anoxic/oxic (AOA) system with long sludge retention time: Significant roles of endogenous carbon source EI
期刊论文 | 2024 , 263 | Environmental Research
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Abstract :

Stringent wastewater discharge standards require wastewater treatment plants (WWTPs) to focus on enhancing nitrogen (N) and phosphorus (P) removal efficiency. Increasing sludge concentration by regulation of sludge retention time (SRT) would enhance wastewater treatment loads. However, phosphorus-accumulating organisms (PAOs) would be outcompeted by glycogen-accumulating organisms (GAOs) under long SRT, leading to a collapse of P removal. In this work, pilot-scale anaerobic-oxic-anoxic (AOA) and anaerobic-anoxic-oxic (AAO) systems with long SRT (30 d) were parallelly established for actual urban wastewater treatment. The results indicated that sludge reflux ratio, temperature, and C/N ratio significantly impact N and P removal performance of AOA and AAO systems with long SRT, and removal efficiency of AOA system significantly exceeded that of AAO system. AOA system with long SRT achieved the optimal performance at sludge reflux ratio of 200%, temperature of 25 °C, and C/N ratio of 8, with COD, NH4+-N, TN, and PO43--P removal ratio of 92.80 ± 2.24%, 97.38 ± 0.89%, 88.97 ± 2.47%, and 94.33 ± 3.27%, respectively. In addition, compared to AAO system, AOA system could save 23.08% of the aeration volume. This work highlighted that AOA system with long SRT included multiple coupled nitrogen and phosphorus removal pathways, such as autotrophic/heterotrophic nitrification, anoxic/oxic denitrification, endogenous denitrification, and denitrifying phosphorus removal. Among these, the synergistic effect of endogenous denitrification and denitrifying phosphorus removal driven by internal carbon sources contributed to satisfactory nitrogen and phosphorus removal efficiency in AOA system with long SRT. © 2024

Keyword :

Alkanolamines Alkanolamines Bioremediation Bioremediation Denitrification Denitrification Effluent treatment Effluent treatment Lead removal (water treatment) Lead removal (water treatment) Nitrification Nitrification Nitrogen removal Nitrogen removal Wastewater treatment Wastewater treatment

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GB/T 7714 Gong, Benzhou , Zhang, Kui , Su, Mubai et al. Efficient nitrogen and phosphorus removal performance and microbial community in a pilot-scale anaerobic/anoxic/oxic (AOA) system with long sludge retention time: Significant roles of endogenous carbon source [J]. | Environmental Research , 2024 , 263 .
MLA Gong, Benzhou et al. "Efficient nitrogen and phosphorus removal performance and microbial community in a pilot-scale anaerobic/anoxic/oxic (AOA) system with long sludge retention time: Significant roles of endogenous carbon source" . | Environmental Research 263 (2024) .
APA Gong, Benzhou , Zhang, Kui , Su, Mubai , Yang, Jun , Peng, Cuiyan , Wang, Yingmu . Efficient nitrogen and phosphorus removal performance and microbial community in a pilot-scale anaerobic/anoxic/oxic (AOA) system with long sludge retention time: Significant roles of endogenous carbon source . | Environmental Research , 2024 , 263 .
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Solids retention time modulates nutrient removal in pilot-scale anaerobic-aerobic-anoxic process: Carbon allocation patterns and microbial insights SCIE
期刊论文 | 2024 , 272 | WATER RESEARCH
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Abstract :

Anaerobic-aerobic-anoxic (AOA) process is a promising configuration to retrofit current wastewater treatment plants with intensified carbon utilization and nutrient removal, but lacks process optimization for scaling-up in real wastewater scenarios. Solids retention time (SRT) is a fundamental parameter of activated sludge process, but its roles in the AOA process remain vague. Here, we established a pilot-scale AOA process at different SRTs (10, 20, 30 d) to investigate the comprehensive responses and potential mechanisms. The results revealed that proper SRT extension in S20 (20 d) achieved the highest nutrient removal via enhanced nitrification, denitrification, denitrifying phosphate removal (DPR), and expanded phosphorus reservoir. Simultaneously, S20 garnered the optimized carbon conservation and allocation via efficient intracellular carbon transformation, consolidating energy foundation for nutrient removal. In contrast, excessive SRT in S30 (30 d) escalated cellular expenditure for maintenance, stimulated sludge decay with starvation stresses, triggered passive ammonia/ phosphate release, and ultimately deteriorated carbon allocation and nutrient removal. Furthermore, microbial insights demonstrated that S20 has tailored habitats for autotrophic nitrifiers, and specialized denitrifying phosphate accumulating organisms (Dechloromonas) and denitrifying glycogen accumulating organisms (Thauera) featuring high carbon priority, favoring nutrient removal; while S30 accelerated exclusion of functional guilds, propagated surplus generalized ordinary heterotrophic and fermentative organisms (Saccharimonadales, Ferruginibacter, Tetrasphaera), impairing the microbial functionality. Functional analysis further corroborated the enhanced nutrient metabolism in S20, and the exacerbated sludge decay and activity attenuation in S30. These findings can advance our understanding of the interactions between SRT and C-N-P cycles in the AOA process, and underscore its significance in practical application.

Keyword :

Anaerobic-aerobic-anoxic Anaerobic-aerobic-anoxic Biological nutrient removal Biological nutrient removal Intracellular carbon Intracellular carbon Microbiota Microbiota Pilot-scale Pilot-scale

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GB/T 7714 Shi, Shuohui , Gong, Benzhou , Yao, Xinyun et al. Solids retention time modulates nutrient removal in pilot-scale anaerobic-aerobic-anoxic process: Carbon allocation patterns and microbial insights [J]. | WATER RESEARCH , 2024 , 272 .
MLA Shi, Shuohui et al. "Solids retention time modulates nutrient removal in pilot-scale anaerobic-aerobic-anoxic process: Carbon allocation patterns and microbial insights" . | WATER RESEARCH 272 (2024) .
APA Shi, Shuohui , Gong, Benzhou , Yao, Xinyun , Zhang, Ying , He, Xuejie , Zhou, Jiong et al. Solids retention time modulates nutrient removal in pilot-scale anaerobic-aerobic-anoxic process: Carbon allocation patterns and microbial insights . | WATER RESEARCH , 2024 , 272 .
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Solids retention time modulates nutrient removal in pilot-scale anaerobic-aerobic-anoxic process: Carbon allocation patterns and microbial insights EI
期刊论文 | 2025 , 272 | Water Research
Solids retention time modulates nutrient removal in pilot-scale anaerobic-aerobic-anoxic process: Carbon allocation patterns and microbial insights Scopus
期刊论文 | 2025 , 272 | Water Research
Efficient nitrogen and phosphorus removal performance and microbial community in a pilot-scale anaerobic/anoxic/oxic (AOA) system with long sludge retention time: Significant roles of endogenous carbon source SCIE
期刊论文 | 2024 , 263 | ENVIRONMENTAL RESEARCH
Abstract&Keyword Cite Version(2)

Abstract :

Stringent wastewater discharge standards require wastewater treatment plants (WWTPs) to focus on enhancing nitrogen (N) and phosphorus (P) removal efficiency. Increasing sludge concentration by regulation of sludge retention time (SRT) would enhance wastewater treatment loads. However, phosphorus-accumulating organisms (PAOs) would be outcompeted by glycogen-accumulating organisms (GAOs) under long SRT, leading to a collapse of P removal. In this work, pilot-scale anaerobic-oxic-anoxic (AOA) and anaerobic-anoxic-oxic (AAO) systems with long SRT (30 d) were parallelly established for actual urban wastewater treatment. The results indicated that sludge reflux ratio, temperature, and C/N ratio significantly impact N and P removal performance of AOA and AAO systems with long SRT, and removal efficiency of AOA system significantly exceeded that of AAO system. AOA system with long SRT achieved the optimal performance at sludge reflux ratio of 200%, temperature of 25 degrees C, and C/N ratio of 8, with COD, NH4+-N, TN, and PO4 3--P removal ratio of 92.80 f 2.24%, 97.38 f 0.89%, 88.97 f 2.47%, and 94.33 f 3.27%, respectively. In addition, compared to AAO system, AOA system could save 23.08% of the aeration volume. This work highlighted that AOA system with long SRT included multiple coupled nitrogen and phosphorus removal pathways, such as autotrophic/heterotrophic nitrification, anoxic/oxic denitrification, endogenous denitrification, and denitrifying phosphorus removal. Among these, the synergistic effect of endogenous denitrification and denitrifying phosphorus removal driven by internal carbon sources contributed to satisfactory nitrogen and phosphorus removal efficiency in AOA system with long SRT.

Keyword :

Anaerobic-oxic-anoxic (AOA) Anaerobic-oxic-anoxic (AOA) Denitrifying phosphorus removal Denitrifying phosphorus removal Endogenous denitrification Endogenous denitrification Internal carbon source Internal carbon source Microbial community Microbial community

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GB/T 7714 Gong, Benzhou , Zhang, Kui , Su, Mubai et al. Efficient nitrogen and phosphorus removal performance and microbial community in a pilot-scale anaerobic/anoxic/oxic (AOA) system with long sludge retention time: Significant roles of endogenous carbon source [J]. | ENVIRONMENTAL RESEARCH , 2024 , 263 .
MLA Gong, Benzhou et al. "Efficient nitrogen and phosphorus removal performance and microbial community in a pilot-scale anaerobic/anoxic/oxic (AOA) system with long sludge retention time: Significant roles of endogenous carbon source" . | ENVIRONMENTAL RESEARCH 263 (2024) .
APA Gong, Benzhou , Zhang, Kui , Su, Mubai , Yang, Jun , Peng, Cuiyan , Wang, Yingmu . Efficient nitrogen and phosphorus removal performance and microbial community in a pilot-scale anaerobic/anoxic/oxic (AOA) system with long sludge retention time: Significant roles of endogenous carbon source . | ENVIRONMENTAL RESEARCH , 2024 , 263 .
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Efficient nitrogen and phosphorus removal performance and microbial community in a pilot-scale anaerobic/anoxic/oxic (AOA) system with long sludge retention time: Significant roles of endogenous carbon source EI
期刊论文 | 2024 , 263 | Environmental Research
Efficient nitrogen and phosphorus removal performance and microbial community in a pilot-scale anaerobic/anoxic/oxic (AOA) system with long sludge retention time: Significant roles of endogenous carbon source Scopus
期刊论文 | 2024 , 263 | Environmental Research
Magnetic Co-doped 1D/2D structured γ-Fe2O3/MoS2 effectively activated peroxymonosulfate for efficient abatement of bisphenol A via both radical and non-radical pathways CSCD
期刊论文 | 2024 , 18 (3) , 143-159 | 环境科学与工程前沿
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Abstract :

Iron-based catalysts have been widely used to treat refractory organic pollutants in wastewater.In this paper,magnetic Co-γ-Fe2O3 was synthesized by a facile tartaric acid-assisted hydrothermal method,and Co-γ-Fe2O3/MoS2 nanocomposite catalyst was obtained via in situ growth of MoS2 nanosheets on Co-γ-Fe2O3 nanoparticles.The nanocomposite catalysts were used to decompose bisphenol A(BPA)by activating peroxymonosulfate(PMS).It was shown that only 0.15 g/L catalyst and 0.5 mmol/L PMS degraded 10 mg/L of BPA(99.3%within 10 min)in the pH range of 3-9.PMS was activated due to redox cycling among the pairs Co(Ⅲ)/Co(Ⅱ),Fe(Ⅲ)/Fe(Ⅱ),and Mo(Ⅵ)/Mo(Ⅳ).Quenching experiments and electron paramagnetic resonance spectroscopy demonstrated that both radical and non-radical pathways were involved in BPA degradation,in which active radical sulfate radical and non-radical singlet oxygen were the main reactive oxygen species.Ten intermediates were identified by liquid chromatography-coupled mass spectrometry,and three possible BPA degradation pathways were proposed.The toxicity of several degradation intermediates was lower,and Co-γ-Fe2O3/MoS2 exhibited excellent reusability and could be magnetically recovered.

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GB/T 7714 Junge Xu , Dong Wang , Die Hu et al. Magnetic Co-doped 1D/2D structured γ-Fe2O3/MoS2 effectively activated peroxymonosulfate for efficient abatement of bisphenol A via both radical and non-radical pathways [J]. | 环境科学与工程前沿 , 2024 , 18 (3) : 143-159 .
MLA Junge Xu et al. "Magnetic Co-doped 1D/2D structured γ-Fe2O3/MoS2 effectively activated peroxymonosulfate for efficient abatement of bisphenol A via both radical and non-radical pathways" . | 环境科学与工程前沿 18 . 3 (2024) : 143-159 .
APA Junge Xu , Dong Wang , Die Hu , Ziwei Zhang , Junhong Chen , Yingmu Wang et al. Magnetic Co-doped 1D/2D structured γ-Fe2O3/MoS2 effectively activated peroxymonosulfate for efficient abatement of bisphenol A via both radical and non-radical pathways . | 环境科学与工程前沿 , 2024 , 18 (3) , 143-159 .
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The collaboration and competition between indigenous microorganisms and exogenous anaerobic digester sludge in anaerobic treatment of pickled mustard wastewater at different salinities SCIE
期刊论文 | 2024 , 371 | JOURNAL OF ENVIRONMENTAL MANAGEMENT
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Abstract :

The highly concentrated pickled mustard wastewater presents significant potential for energy recovery, but the stress effect of high osmotic pressure on cell integrity and activity seriously impedes the methane production by anaerobic microorganisms. The survival ability of indigenous microorganisms (IM) in pickled mustard wastewater supports the establishment of anaerobic treatment. Moreover, inoculation of anaerobic digester sludge is a common start-up strategy. However, the effects of exogenous anaerobic sludge on IM are unclear, especially in hypersaline environment. This research aimed to investigate the influence of exogenous anaerobic sludge on the construction, performance, and microbiota at 3% and 5% salinity. And the research focused on the collaboration and competition between exogenous anaerobic sludge and IM. The neutral community model (which explains the formation and evolution of biological communities) indicated that the interaction between exogenous digester sludge microorganisms and IM dominated community assembly. At 3%, the digester sludge collaborated with IM to increase daily COD reduction and biogas production compared with IM group. However, at 5%, the competitive relationship reduced daily COD reduction and biogas production compared with IM group. This study provides a new perspective for the selection of inoculation strategies for exogenous anaerobic digester sludge under different salinity, in order to realize energy conversion from salinity organic wastewater.

Keyword :

Anaerobic biological treatment Anaerobic biological treatment Digester sludge Digester sludge High-salinity wastewater High-salinity wastewater Native microorganisms Native microorganisms

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GB/T 7714 Fan, Xing , Peng, Ce , Yang, Jingyi et al. The collaboration and competition between indigenous microorganisms and exogenous anaerobic digester sludge in anaerobic treatment of pickled mustard wastewater at different salinities [J]. | JOURNAL OF ENVIRONMENTAL MANAGEMENT , 2024 , 371 .
MLA Fan, Xing et al. "The collaboration and competition between indigenous microorganisms and exogenous anaerobic digester sludge in anaerobic treatment of pickled mustard wastewater at different salinities" . | JOURNAL OF ENVIRONMENTAL MANAGEMENT 371 (2024) .
APA Fan, Xing , Peng, Ce , Yang, Jingyi , Zhang, Ying , Lin, Shuxuan , Lin, Chengbao et al. The collaboration and competition between indigenous microorganisms and exogenous anaerobic digester sludge in anaerobic treatment of pickled mustard wastewater at different salinities . | JOURNAL OF ENVIRONMENTAL MANAGEMENT , 2024 , 371 .
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The collaboration and competition between indigenous microorganisms and exogenous anaerobic digester sludge in anaerobic treatment of pickled mustard wastewater at different salinities Scopus
期刊论文 | 2024 , 371 | Journal of Environmental Management
The collaboration and competition between indigenous microorganisms and exogenous anaerobic digester sludge in anaerobic treatment of pickled mustard wastewater at different salinities EI
期刊论文 | 2024 , 371 | Journal of Environmental Management
Research on carbon emission accounting and low carbon operation methods for urban water supply systems SCIE
期刊论文 | 2024 , 68 | JOURNAL OF WATER PROCESS ENGINEERING
Abstract&Keyword Cite Version(1)

Abstract :

Under the environment of global warming, how to promote the innovative and efficient development of water supply system is the key to sustainable urban development. There is still room for improvement in the study of carbon emissions in urban water supply systems and there is a lack of appropriate rationale for low-carbon operation and management of waterworks. A water-energy-carbon (WEC) framework is established in Fuzhou to account for the carbon emissions from 2013 to 2022 and the level of coupling and coordination development is evaluated in this study. A multi-objective optimization model and a system dynamics (SD) model were developed to optimize the low-carbon operation of the water supply system and predict future climate impacts. We also provide a quantitative and qualitative evaluation method for low-carbon operation. The results show that carbon emissions generated by electricity consumption and chemical use in the water supply system contribute greatly, and the coupling coordination level is high. Under different scenarios, the optimal solutions of carbon emissions, carcinogenic risk factors and unit energy economy range from 1.63 to 3.82 kt CO2-eq, 4.4 x 10-5 to 2.7 x 10-4, and 0.26 to 0.73 RMB/MJ. In the SD model, the water supply system can achieve 17 % and 20 % carbon reduction in 2025 and 2030. Its carbon reduction direction is mainly reflected in public service water use. This study provides a reference for optimizing the operation of water supply systems.

Keyword :

Carbon emission prediction Carbon emission prediction Low-carbon operation assessment Low-carbon operation assessment Water-energy-carbon nexus Water-energy-carbon nexus Water supply system Water supply system

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GB/T 7714 Fan, Gongduan , Xu, Qiaoling , Wang, Yingmu et al. Research on carbon emission accounting and low carbon operation methods for urban water supply systems [J]. | JOURNAL OF WATER PROCESS ENGINEERING , 2024 , 68 .
MLA Fan, Gongduan et al. "Research on carbon emission accounting and low carbon operation methods for urban water supply systems" . | JOURNAL OF WATER PROCESS ENGINEERING 68 (2024) .
APA Fan, Gongduan , Xu, Qiaoling , Wang, Yingmu , Chen, Hongjing , Lin, Chen , Wei, Zhongqing et al. Research on carbon emission accounting and low carbon operation methods for urban water supply systems . | JOURNAL OF WATER PROCESS ENGINEERING , 2024 , 68 .
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Research on carbon emission accounting and low carbon operation methods for urban water supply systems Scopus
期刊论文 | 2024 , 68 | Journal of Water Process Engineering
Catalyzing cycling of carbon, nitrogen and iron redox by Shewanella in coupling Anammox and Bio-Fenton systems SCIE
期刊论文 | 2024 , 499 | CHEMICAL ENGINEERING JOURNAL
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Abstract :

The transformations of carbon, nitrogen, and iron are closely interrelated within the elemental biogeochemical cycles, influenced by numerous factors. The key roles of Shewanella in the three cycles, which drives Biological Fenton (Bio-Fenton) and improves biological nitrogen removal, have not been clarified. In this study, by coupling Anammox with Bio-Fenton in the cathodic chamber of a microbial electrochemical system (MES), we explored the ability of Shewanella to force C, N, and Fe transformation, and excavated the interactions among the complex reactions. In the coupling systems, nitrogen removal efficiency was enhanced by 22.69%, and Shewanellamediated Fe (III) reduction improved hydroxyl radical (center dot OH) production to decompose 1,4-dioxane. Fe (II) was generated with electrons from the cathode and then chemically oxidized, and one-electron transfer pathway was prioritized in center dot OH production. Functional gene abundance reflected that the antioxidant systems of microorganisms were highly developed to resist the oxidative stress. The robustness of the coupling systems was demonstrated during long-term operation. This study provides valuable insights into the importance of Shewanella in redox zones and presents novel technological advancements for wastewater treatment.

Keyword :

Bio-Fenton Bio-Fenton Electron transfer Electron transfer Exoelectrogens Exoelectrogens Hydroxyl radical Hydroxyl radical Nitrogen removal Nitrogen removal

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GB/T 7714 He, Lei , Fan, Xing , He, Xuejie et al. Catalyzing cycling of carbon, nitrogen and iron redox by Shewanella in coupling Anammox and Bio-Fenton systems [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 499 .
MLA He, Lei et al. "Catalyzing cycling of carbon, nitrogen and iron redox by Shewanella in coupling Anammox and Bio-Fenton systems" . | CHEMICAL ENGINEERING JOURNAL 499 (2024) .
APA He, Lei , Fan, Xing , He, Xuejie , Yang, Tao , Zhou, Jiong , Huang, Yangyang et al. Catalyzing cycling of carbon, nitrogen and iron redox by Shewanella in coupling Anammox and Bio-Fenton systems . | CHEMICAL ENGINEERING JOURNAL , 2024 , 499 .
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Catalyzing cycling of carbon, nitrogen and iron redox by Shewanella in coupling Anammox and Bio-Fenton systems EI
期刊论文 | 2024 , 499 | Chemical Engineering Journal
Catalyzing cycling of carbon, nitrogen and iron redox by Shewanella in coupling Anammox and Bio-Fenton systems Scopus
期刊论文 | 2024 , 499 | Chemical Engineering Journal
Rhombic dodecahedral ZIF-8-supported CuFe2O4 triggers sodium percarbonate activation for enhanced sulfonamide antibiotics degradation: Synergistic roles of heterostructure and photocatalytic mechanisms SCIE
期刊论文 | 2024 , 501 | CHEMICAL ENGINEERING JOURNAL
WoS CC Cited Count: 2
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Abstract :

Pollution from extensive sulfonamide antibiotic use is a critical research focus, particularly in the remediation of these antibiotics using composite materials. This study employed a CuFe2O4/ZIF-8 composite to activate sodium percarbonate (SPC) for the photo-Fenton-like degradation of the sulfonamide antibiotic sulfamethoxazole (SMX). The optimal conditions for SMX degradation were determined using the CuFe2O4/ZIF-8/SPC/Vis system: a ZIF-8 composite ratio of 40 %, catalyst dosage of 0.15 g/L, SPC concentration of 0.8 mM, and initial pH of 3.0, achieving complete SMX removal within 30 min. After five cycle tests, the leaching rates of copper and iron ions were 0.179 mg/L and 0.376 mg/L, respectively, significantly lower compared to the use of CuFe2O4 alone as the catalyst (Cu: 0.46 mg/L, Fe: 1.43 mg/L). The radicals present in the system were identified, with their contribution rates ranked from highest to lowest as follows: OH > h(+)> O-2(-) > CO3(-) > O-1(2). Further mechanistic investigations revealed that the heterogeneous structures in CuFe2O4/ZIF-8 enhanced the efficiency of the photo-Fenton-like reaction by facilitating electron transfer. This study introduced an innovative approach for antibiotic treatment using the CuFe2O4/ZIF-8 composite under visible light irradiation and broadened the technical framework of SPC-based advanced oxidation processes (AOPs) for treating wastewater.

Keyword :

CuFe2O4/ZIF-8 CuFe2O4/ZIF-8 Heterogeneous photo-Fenton-like Heterogeneous photo-Fenton-like Magnetic recovery Magnetic recovery Sodium percarbonate Sodium percarbonate Sulfonamide antibiotics Sulfonamide antibiotics

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GB/T 7714 Xu, Junge , Yu, Weihao , Zhang, Ziwei et al. Rhombic dodecahedral ZIF-8-supported CuFe2O4 triggers sodium percarbonate activation for enhanced sulfonamide antibiotics degradation: Synergistic roles of heterostructure and photocatalytic mechanisms [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 501 .
MLA Xu, Junge et al. "Rhombic dodecahedral ZIF-8-supported CuFe2O4 triggers sodium percarbonate activation for enhanced sulfonamide antibiotics degradation: Synergistic roles of heterostructure and photocatalytic mechanisms" . | CHEMICAL ENGINEERING JOURNAL 501 (2024) .
APA Xu, Junge , Yu, Weihao , Zhang, Ziwei , Deng, Fubin , Wang, Shengkong , Zou, Rusen et al. Rhombic dodecahedral ZIF-8-supported CuFe2O4 triggers sodium percarbonate activation for enhanced sulfonamide antibiotics degradation: Synergistic roles of heterostructure and photocatalytic mechanisms . | CHEMICAL ENGINEERING JOURNAL , 2024 , 501 .
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Rhombic dodecahedral ZIF-8-supported CuFe2O4 triggers sodium percarbonate activation for enhanced sulfonamide antibiotics degradation: Synergistic roles of heterostructure and photocatalytic mechanisms EI
期刊论文 | 2024 , 501 | Chemical Engineering Journal
Rhombic dodecahedral ZIF-8-supported CuFe2O4 triggers sodium percarbonate activation for enhanced sulfonamide antibiotics degradation: Synergistic roles of heterostructure and photocatalytic mechanisms Scopus
期刊论文 | 2024 , 501 | Chemical Engineering Journal
Magnetic Co-doped 1D/2D structured γ-Fe2O3/MoS2 effectively activated peroxymonosulfate for efficient abatement of bisphenol A via both radical and non-radical pathways SCIE CSCD
期刊论文 | 2024 , 18 (3) | FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
WoS CC Cited Count: 9
Abstract&Keyword Cite Version(2)

Abstract :

Iron-based catalysts have been widely used to treat refractory organic pollutants in wastewater. In this paper, magnetic Co-gamma-Fe(2)O(3 )was synthesized by a facile tartaric acid-assisted hydrothermal method, and Co-gamma-Fe2O3/MoS2 nanocomposite catalyst was obtained via in situ growth of MoS2 nanosheets on Co-gamma-Fe2O3 nanoparticles. The nanocomposite catalysts were used to decompose bisphenol A (BPA) by activating peroxymonosulfate (PMS). It was shown that only 0.15 g/L catalyst and 0.5 mmol/L PMS degraded 10 mg/L of BPA (99.3% within 10 min) in the pH range of 3-9. PMS was activated due to redox cycling among the pairs Co(III)/Co(II), Fe(III)/Fe(II), and Mo(VI)/Mo(IV). Quenching experiments and electron paramagnetic resonance spectroscopy demonstrated that both radical and non-radical pathways were involved in BPA degradation, in which active radical sulfate radical and non-radical singlet oxygen were the main reactive oxygen species. Ten intermediates were identified by liquid chromatography-coupled mass spectrometry, and three possible BPA degradation pathways were proposed. The toxicity of several degradation intermediates was lower, and Co-gamma-Fe2O3/MoS2 exhibited excellent reusability and could be magnetically recovered.

Keyword :

Bisphenol A Bisphenol A Degradation pathways Degradation pathways Hydrothermal method Hydrothermal method Magnetic Co-gamma-Fe2O3/MoS2 Magnetic Co-gamma-Fe2O3/MoS2 Toxicity analysis Toxicity analysis

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GB/T 7714 Xu, Junge , Wang, Dong , Hu, Die et al. Magnetic Co-doped 1D/2D structured γ-Fe2O3/MoS2 effectively activated peroxymonosulfate for efficient abatement of bisphenol A via both radical and non-radical pathways [J]. | FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING , 2024 , 18 (3) .
MLA Xu, Junge et al. "Magnetic Co-doped 1D/2D structured γ-Fe2O3/MoS2 effectively activated peroxymonosulfate for efficient abatement of bisphenol A via both radical and non-radical pathways" . | FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING 18 . 3 (2024) .
APA Xu, Junge , Wang, Dong , Hu, Die , Zhang, Ziwei , Chen, Junhong , Wang, Yingmu et al. Magnetic Co-doped 1D/2D structured γ-Fe2O3/MoS2 effectively activated peroxymonosulfate for efficient abatement of bisphenol A via both radical and non-radical pathways . | FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING , 2024 , 18 (3) .
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Magnetic Co-doped 1D/2D structured γ-Fe2O3/MoS2 effectively activated peroxymonosulfate for efficient abatement of bisphenol A via both radical and non-radical pathways Scopus CSCD
期刊论文 | 2024 , 18 (3) | Frontiers of Environmental Science and Engineering
Magnetic Co-doped 1D/2D structured γ-Fe2O3/MoS2 effectively activated peroxymonosulfate for efficient abatement of bisphenol A via both radical and non-radical pathways EI CSCD
期刊论文 | 2024 , 18 (3) | Frontiers of Environmental Science and Engineering
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