Bio-electro-Fenton systems in wastewater treatment: Research progress and prospects

Journal of Electroanalytical Chemistry, Год журнала: 2025, Номер 981, С. 118959 - 118959

Опубликована: Янв. 30, 2025

Язык: Английский

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Boosting the biosynthesis of medium-chain fatty acids from waste activated sludge electro-fermentation: Roles of syngas and ethanol serving as co-electron donors

Journal of Cleaner Production, Год журнала: 2025, Номер unknown, С. 145383 - 145383

Опубликована: Март 1, 2025

Язык: Английский

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In situ coupling of reduction and oxidation processes with alternating current-driven bioelectrodes for efficient mineralization of refractory pollutants

Engineering, Год журнала: 2024, Номер 43, С. 125 - 138

Опубликована: Июнь 1, 2024

The effective elimination of aromatic compounds from wastewater is imperative for safeguarding the ecological environment. Bioelectrochemical processes that combine cathodic reduction and anodic oxidation represent a promising approach biomineralization compounds. However, conventional direct current bioelectrochemical methods have intrinsic limitations. In this study, low-frequency low-voltage alternating (LFV-AC)-driven bioelectrode offering periodic in situ coupling was developed compounds, as exemplified by degradation alizarin yellow R (AYR). LFV-AC stimulated biofilm demonstrated efficient bidirectional electron transfer oxidation–reduction bifunctionality, considerably boosting AYR (63.07% ± 1.91%) subsequent mineralization intermediate products (98.63% 0.37%). stimulation facilitated assembly collaborative microbiome dedicated to metabolism, characterized an increased abundance functional consortia proficient azo dye (Stenotrophomonas Bradyrhizobium), (Sphingopyxis Sphingomonas), (Geobacter Pseudomonas). notable enrichment genes encoding azo- nitro-reductases, catechol oxygenases, redox mediator proteins. These findings highlight effectiveness biomineralization, novel sustainable removal refractory organic pollutants wastewater.

Язык: Английский

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Novel strategies for enhancing energy metabolism and wastewater treatment in algae-bacteria symbiotic system through carbon dots-induced photogenerated electrons: The definitive role of accelerated electron transport

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 157016 - 157016

Опубликована: Окт. 1, 2024

Язык: Английский

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Impact of carrier capacitance on Geobacter enrichment and direct interspecies electron transfer under anaerobic conditions

Bioresource Technology, Год журнала: 2025, Номер unknown, С. 132079 - 132079

Опубликована: Янв. 1, 2025

Язык: Английский

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Tailoring microbial redox with alternating current for efficient mineralization of refractory organic nitrogen compounds in wastewater

npj Clean Water, Год журнала: 2025, Номер 8(1)

Опубликована: Янв. 20, 2025

Язык: Английский

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Unraveling the Trade-Off Effect of Pyrogenic Carbons Between Biopseudocapacitors and Bioconductors During Anaerobic Methanogenesis

Environmental Science & Technology, Год журнала: 2025, Номер unknown

Опубликована: Янв. 27, 2025

Pyrogenic carbons (PCs), with varying structures depending on the materials and thermal treatment conditions, have been extensively used to enhance anaerobic digestion by mediating electron transfer. However, underlying mechanism has yet be explored. Herein, redirection enhancement of direct interspecies transfer (DIET) pathway were evidenced, along upregulated electrochemical properties structural proteins in methanogenic consortia. Further, we found that PCs featured trade-off "biopseudocapacitor" "bioconductor" during treatment, as endowed evolution oxygen-containing functional groups (for charging discharging) graphitic structure conductivity). Correspondingly, their effect syntrophic methanogenesis (SM) was realized between generally acknowledged bioconductor role pseudocapacitive effect, highlighted enhanced SM reduced from more balanced exchange capacities. Consequently, a performance comparison obtained at 450, 650, 850 °C resulted an optimized sample 650 °C, where 61.3 ± 1.8% increase methane production rate 33.4 1.1% decrease lag time observed. Microbiologically, DIET-active Methanothrix Geobacteraceae flourished intra- extracellular transport channels established. These findings provide new insights into renewable potential regulating energy-harvesting biochemical processes toward carbon neutrality.

Язык: Английский

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Sorting Out the Latest Advances in Separators and Pilot-Scale Microbial Electrochemical Systems for Wastewater Treatment: Concomitant Development, Practical Application, and Future Perspective

Environmental Science & Technology, Год журнала: 2024, Номер 58(22), С. 9471 - 9486

Опубликована: Май 22, 2024

To date, dozens of pilot-scale microbial fuel cell (MFC) devices have been successfully developed worldwide for treating various types wastewater. The availability and configurations separators are determining factors the economic feasibility, efficiency, sustainability, operability these devices. Thus, concomitant advances between MFC deserve further clarification. analysis separator has shown that their evolution proceeds as follows: from ion-selective to ion-non-selective, nonpermeable permeable, abiotic biotic. Meanwhile, cost is decreasing increasing. Notably, novel MFCs configured with biotic superior those in terms wastewater treatment efficiency capital cost. Herein, a highly comprehensive review (>100 L) conducted, we conclude intensive stack liquid cathode configuration more advantageous when highest priority. use permeable ensures hydrodynamic continuity within simplifies reactor operation. In addition, systemic comparison conducted conventional decentralized processes. showed comparable cost, higher long-term stability, significant superiority carbon emission reduction. development greatly contributed usability MFCs, which will play an important role scenarios future.

Язык: Английский

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Frequency-modulated alternating current-driven bioelectrodes for enhanced mineralization of Alizarin Yellow R

Journal of Hazardous Materials, Год журнала: 2024, Номер 475, С. 134906 - 134906

Опубликована: Июнь 13, 2024

Язык: Английский

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Intermittent polarization: A promising strategy for microbial electricity driven reduction of DOM toxicity in actual industrial wastewater

Water Research, Год журнала: 2024, Номер 262, С. 122099 - 122099

Опубликована: Июль 14, 2024

Язык: Английский

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