Diversified metabolism makes novel Thauera strain highly competitive in low carbon wastewater treatment

Water Research, Journal Year: 2021, Volume and Issue: 206, P. 117742 - 117742

Published: Oct. 8, 2021

Language: Английский

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Multi-omics analysis revealed the selective enrichment of partial denitrifying bacteria for the stable coupling of partial-denitrification and anammox process under the influence of low strength magnetic field

Water Research, Journal Year: 2023, Volume and Issue: 245, P. 120619 - 120619

Published: Sept. 11, 2023

Language: Английский

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Keystone Species and Niche Differentiation Promote Microbial N, P, and COD Removal in Pilot Scale Constructed Wetlands Treating Domestic Sewage

Environmental Science & Technology, Journal Year: 2021, Volume and Issue: 55(18), P. 12652 - 12663

Published: Sept. 3, 2021

The microbial characteristics related to nitrogen (N), phosphorus (P), and chemical oxygen demand (COD) removal were investigated in three pilot scale constructed wetlands (CWs). Compared horizontal subsurface flow (HSSF) surface (SF) CWs, the aerobic vertical (VF) CW enriched more functional bacteria carrying genes for nitrification (nxrA, amoA), denitrification (nosZ), dephosphorization (phoD), methane oxidation (mmoX), while of COD, total P, N increased by 33.28%, 255.28%, 299.06%, respectively. co-occurrence network HSSF was complex, with equivalent bacterial cooperation competition. Both VF SF CWs exhibited a simple topological structure. reduced redundancy forming niche differentiation, which filtered out keystone species that closely each other, thus achieving effective sewage purification. Alternatively, overlap protected single function CW. construction type, temperature, plants had less effect on nutrient from this subtropical region. Partial least-squares path modeling (PLS–PM) suggests high dissolved oxidation–reduction potential promoted diverse community nonkeystone external stress bacteria, thereby indirectly promoting removal.

Language: Английский

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Overlooked pathways of endogenous simultaneous nitrification and denitrification in anaerobic/aerobic/anoxic sequencing batch reactors with organic supplementation

Water Research, Journal Year: 2022, Volume and Issue: 230, P. 119493 - 119493

Published: Dec. 15, 2022

Language: Английский

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The mixed/mixotrophic nitrogen removal for the effective and sustainable treatment of wastewater: From treatment process to microbial mechanism

Water Research, Journal Year: 2022, Volume and Issue: 226, P. 119269 - 119269

Published: Oct. 17, 2022

Language: Английский

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Hydroxylamine metabolism in mainstream denitrifying ammonium oxidation (DEAMOX) process: Achieving fast start-up and robust operation with bio-augmentation assistance under ambient temperature

Journal of Hazardous Materials, Journal Year: 2021, Volume and Issue: 421, P. 126736 - 126736

Published: July 24, 2021

Language: Английский

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Metagenomics insights into high-rate nitrogen removal from municipal wastewater by integrated nitrification, partial denitrification and Anammox at an extremely short hydraulic retention time

Bioresource Technology, Journal Year: 2023, Volume and Issue: 387, P. 129606 - 129606

Published: Aug. 11, 2023

Language: Английский

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Machine Learning-Assisted Optimization of Mixed Carbon Source Compositions for High-Performance Denitrification

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(28), P. 12498 - 12508

Published: June 20, 2024

Appropriate mixed carbon sources have great potential to enhance denitrification efficiency and reduce operational costs in municipal wastewater treatment plants (WWTPs). However, traditional methods struggle efficiently select the optimal mixture due variety of compositions. Herein, we developed a machine learning-assisted high-throughput method enabling WWTPs rapidly identify optimize sources. Taking local WWTP as an example, source data set was established via employed train learning model. The composition types inoculated sludge served input variables. XGBoost algorithm predict total nitrogen removal rate microbial growth, thereby aiding assessment potential. predicted exhibited enhanced over single both kinetic experiments long-term reactor operations. Model feature analysis shows that cumulative effect interaction among individual significantly overall Metagenomic reveals increased diversity complexity denitrifying bacterial ecological networks WWTPs. This work offers efficient for compositions provides new insights into mechanism behind under supply multiple

Language: Английский

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Enhanced nitrate reduction in hypotrophic waters with integrated photocatalysis and biodegradation

Environmental Science and Ecotechnology, Journal Year: 2024, Volume and Issue: 21, P. 100390 - 100390

Published: Jan. 13, 2024

Addressing nitrate contamination in water bodies is a critical environmental challenge, and Intimately Coupling Photocatalysis Biodegradation (ICPB) presents promising solution. However, there still debate about the effectiveness of ICPB reducing under hypotrophic conditions. Further research needed to understand its microbial metabolic mechanism functional changes bacterial structure. Here we explored mechanisms structure reactors integrating meticulously screened TiO2/g-C3N4 photocatalyst with biofilm. We achieved 26.3% increase reduction using 12.2% less organic carbon compared traditional biodegradation methods. Metagenomic analysis communities revealed evolving pathways conducive reduction. This not only elucidates photocatalytic behind conditions but also provides genomic insights that pave way for alternative approaches remediation technologies.

Language: Английский

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Integrating network and in-silico simulation insights into the ecological interactions shaped by carbon sources in partial denitrification and anammox system

Water Research, Journal Year: 2025, Volume and Issue: 276, P. 123246 - 123246

Published: Feb. 5, 2025

Language: Английский

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