Immobilized exogenous electron shuttle-mediated anaerobic ammonia oxidation (anammox) process: Performance and mechanism

Chemical Engineering Journal, Год журнала: 2024, Номер 495, С. 153415 - 153415

Опубликована: Июнь 22, 2024

Язык: Английский

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Bioelectrochemical system for nitrogen removal: Fundamentals, current status, trends, and challenges

Chemosphere, Год журнала: 2023, Номер 339, С. 139776 - 139776

Опубликована: Авг. 9, 2023

Язык: Английский

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Rapid Start-Up and Long-Term Stability of Anammox with Magnetic Biochar Addition: Performance Improvement, Microbial Community, and Potential Mechanisms

ACS ES&T Engineering, Год журнала: 2023, Номер 3(11), С. 2097 - 2108

Опубликована: Окт. 19, 2023

Accelerating the start-up of anaerobic ammonium oxidation (anammox) is primary condition for its large-scale application. Anammox with magnetic biochar took shortest time, reducing 15–24 days compared to control blank (CK) and 6–26 pyrolytic biochar. FCS300 (magnetic prepared at 300 °C) could produce highest levels heme c (0.123 μmol/g VSS). The extracellular polymeric substances (EPS) in had lowest R ct (12.6 kΩ) a substantially higher electron-transfer capability (ETC). Candidatus jettenia was main anammox bacteria (AnAOB) reactors after successful start-up, distribution spatially variable on suspended sludge biofilm findings implied that might improve electron transfer by shortening time via an shuttle mechanism or direct interspecies transfer.

Язык: Английский

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Magnetite addition reduces nitrite requirement for efficient anaerobic ammonium oxidation by facilitating mutualism of ANAMMOX and FEAMMOX bacteria

The Science of The Total Environment, Год журнала: 2024, Номер 946, С. 174497 - 174497

Опубликована: Июль 3, 2024

Язык: Английский

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Enhancing anammox process with granular activated carbon: A study on Microbial Extracellular Secretions (MESs)

The Science of The Total Environment, Год журнала: 2024, Номер 926, С. 171980 - 171980

Опубликована: Март 26, 2024

Granular activated carbon (GAC), a porous carbon-based material, provides increased attachment space for functional microorganisms and enhances nitrogen removal by facilitating extracellular electron transfer in the anammox process. This study investigates effects of GAC on biosynthesis microbial secretions (MESs) explores roles these activities. Four lab-scale reactors were operated: two downstream UASB (D1 D2) receiving effluents from upstream (U1: no-GAC, U2: yes-GAC). Our results indicate that MESs enhanced with addition GAC. The effluent U2 exhibited 59.62 % higher amino acid content than U1. These contributed to an increase loading rate (NLR) reactors. Specifically, NLR D1 130.5 142.7 g N/m3/day, D2, it escalated 137.5 202.8 likely through acting as cross-feeding substrates or vital nutrients. D2 also showed bacterial activity, enriched Ca. Brocadia population hao gene abundance. Furthermore, this revealed sludge has significantly polymeric substances (EPS) (48.71 mg/g VSS) larger average granule size (1.201 ± 0.119 mm) compared sludge. Overall, GAC-stimulated may have performance

Язык: Английский

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Biohydrogen production from wastewater: Production technologies, environmental and economic aspects

Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(5), С. 114104 - 114104

Опубликована: Сен. 10, 2024

Язык: Английский

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Emerging biotechnological applications of anaerobic ammonium oxidation

Trends in biotechnology, Год журнала: 2024, Номер 42(9), С. 1128 - 1143

Опубликована: Март 21, 2024

Язык: Английский

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Future directions in microbial nitrogen cycling in wastewater treatment

Current Opinion in Biotechnology, Год журнала: 2024, Номер 88, С. 103163 - 103163

Опубликована: Июнь 18, 2024

Язык: Английский

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Enhanced nitrogen removal at low temperature using low frequency-low voltage alternating electric current

Biochemical Engineering Journal, Год журнала: 2025, Номер 215, С. 109631 - 109631

Опубликована: Янв. 8, 2025

Язык: Английский

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Enhancing anammox performance under starvation stress: The role of pyrite in regulating nitrogen and sulfur metabolism

Journal of Water Process Engineering, Год журнала: 2025, Номер 70, С. 106992 - 106992

Опубликована: Янв. 15, 2025

Язык: Английский

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