Mechanistic insight into the aggregation ability of anammox microorganisms: Roles of polarity, composition and molecular structure of extracellular polymeric substances

Water Research, Год журнала: 2024, Номер 254, С. 121438 - 121438

Опубликована: Март 7, 2024

Язык: Английский

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Rapid start-up sulfur-driven autotrophic denitrification granular process: Extracellular electron transfer pathways and microbial community evolution

Bioresource Technology, Год журнала: 2024, Номер 395, С. 130331 - 130331

Опубликована: Янв. 17, 2024

Язык: Английский

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Meta-analyzing the mechanism of pyrogenic biochar strengthens nitrogen removal performance in sulfur-driven autotrophic denitrification system: Evidence from metatranscriptomics

Water Research, Год журнала: 2024, Номер 253, С. 121296 - 121296

Опубликована: Фев. 9, 2024

Язык: Английский

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Electrochemical-coupled sulfur-driven autotrophic denitrification for nitrogen removal from raw landfill leachate: Evaluation of performance and mechanisms

Water Research, Год журнала: 2024, Номер 256, С. 121592 - 121592

Опубликована: Апрель 10, 2024

Язык: Английский

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Exogenous electric field as a biochemical driving factor for extracellular electron transfer: Increasing power output of microbial fuel cell

Energy Conversion and Management, Год журнала: 2024, Номер 301, С. 118050 - 118050

Опубликована: Янв. 5, 2024

Язык: Английский

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The Impact of Bisphenol A on the Anaerobic Sulfur Transformation: Promoting Sulfur Flow and Toxic H₂S Production

Environmental Science & Technology, Год журнала: 2024, Номер 58(18), С. 8043 - 8052

Опубликована: Апрель 22, 2024

Bisphenol A (BPA), as a typical leachable additive from microplastics and one of the most productive bulk chemicals, is widely distributed in sediments, sewers, wastewater treatment plants, where active sulfur cycling takes place. However, effect BPA on transformation, particularly toxic H2S production, has been previously overlooked. This work found that at environmentally relevant levels (i.e., 50–200 mg/kg total suspended solids, TSS) promoted release soluble compounds increased gas production by 14.3–31.9%. The tryptophan-like proteins microbe extracellular polymeric substances (EPSs) can spontaneously adsorb BPA, which an enthalpy-driven reaction (ΔH = −513.5 kJ mol–1, ΔS −1.60 mol–1K –1, ΔG −19.52 mol–1 35 °C). binding changed composition structure EPSs, improved direct electron transfer capacity thereby promoting bioprocesses organic hydrolysis sulfate reduction. In addition, presence enriched functional microbes (e.g., Desulfovibrio Desulfuromonas) responsible for mineralization inorganic reduction abundance related genes involved ATP-binding cassette transporters metabolism Sat AspB), anaerobic transformation. deepens our understanding interaction between transformation occurring environments.

Язык: Английский

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Regulating microbial redox reactions towards enhanced removal of refractory organic nitrogen from wastewater

Water Research, Год журнала: 2024, Номер 258, С. 121778 - 121778

Опубликована: Май 26, 2024

Язык: Английский

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Glycine betaine modulates extracellular polymeric substances to enhance microbial salinity tolerance

Environmental Science and Ecotechnology, Год журнала: 2024, Номер 20, С. 100406 - 100406

Опубликована: Март 1, 2024

High salinity inhibits microbial activity in the bioremediation of saline wastewater. To alleviate osmotic stress, glycine betaine (GB), an osmoprotectant, is added to enhance secretion extracellular polymeric substances (EPS). These EPS are pivotal withstanding environmental stressors, yet intricate interplay between GB supplementation and responses through modifications—encompassing composition, molecular architecture, electrochemical features—remains elusive hypersaline conditions. Here we show strategies for endurance by investigating impact on dynamic alterations properties. Our findings reveal that at 3.5% elevates total (T-EPS) content from 12.50 ± 0.05 24.58 0.96 mg/g dry cell weight. The observed shift zeta potential −28.95 −6.25 mV 0% salinity, respectively, with treatment, indicates a reduction electrostatic repulsion compaction. Notably, protein secondary structure transition β-sheet α-helix, addition, signifies more compact configuration, less susceptible fluctuations. Electrochemical analyses, including cyclic voltammetry (CV) differential pulse (DPV), GB's role promoting release exogenous electron shuttles, such as flavins c-type cytochromes (c-Cyts). enhancement DPV peak areas (QDPV) addition implies increase available transfer sites. This investigation advances our comprehension adaptation mechanisms modifications facilitated habitats.

Язык: Английский

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Efficient Degradation of Ciprofloxacin in Water Using nZVI/g-C3N4 Enhanced Dielectric Barrier Discharge Plasma Process

Environmental Research, Год журнала: 2025, Номер unknown, С. 120833 - 120833

Опубликована: Янв. 1, 2025

Язык: Английский

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Robust rehabilitation of anammox system by granular activated carbon under long-term starvation stress: Microbiota restoration and metabolic reinforcement

Bioresource Technology, Год журнала: 2023, Номер 393, С. 130113 - 130113

Опубликована: Ноя. 25, 2023

Язык: Английский

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