A comprehensive analysis of microbial community differences in four morphologies of mainstream anaerobic ammonia oxidation systems using big-data mining and machine learning DOI Creative Commons
Shijie Zhou,

Weidi Zhu,

Yuhang He

et al.

Frontiers in Marine Science, Journal Year: 2024, Volume and Issue: 11

Published: Sept. 4, 2024

Achieving carbon neutrality in wastewater treatment plants relies heavily on mainstream anaerobic ammonia oxidation. However, the stability of this process is often compromised, largely due to significant influence microbial morphology. This study analyzed 208 samples using bioinformatics and machine learning (ML) across four different morphologies: Suspended Sludge (SS), Biofilm, Granular (GS) Integrated Fixed-film Activated (IFAS). The results revealed IFAS’s notably complex stable community structure, along with identification endemic genera common among morphologies. Through co-occurrence network analysis, interaction between microorganisms various was displayed. Utilizing Extreme Gradient Boosting (XGBoost) model, a ML modeling framework based microbiome data developed. ML-based feature importance analysis identified LD-RB-34 as key organism SS BSV26 an important bacterium IFAS. Additionally, functional bacteria KF-JG30-C25 occupied higher proportion GS, Unclassified Brocadiaceae Biofilm. Furthermore, dissolved oxygen, temperature pH were primary factors determining communities influencing anammox activity. Overall, deepens our understanding bacterial enhance nitrogen removal.

Language: Английский

One-stage anammox and thiocyanate-driven autotrophic denitrification for simultaneous removal of thiocyanate and nitrogen: Pathway and mechanism DOI
Xue Chen,

Fengshang Duan,

Xi Yu

et al.

Water Research, Journal Year: 2024, Volume and Issue: 265, P. 122268 - 122268

Published: Aug. 22, 2024

Language: Английский

Citations

18
Research progress of anaerobic ammonium oxidation (Anammox) process based on integrated fixed‐film activated sludge (IFAS) DOI Creative Commons
Guang Li,

Yunyong Yu,

Xingyu Li

et al.

Environmental Microbiology Reports, Journal Year: 2024, Volume and Issue: 16(2)

Published: March 5, 2024

Abstract The integrated fixed‐film activated sludge (IFAS) process is considered one of the cutting‐edge solutions to traditional wastewater treatment challenges, allowing suspended and attached biofilm grow in same system. In addition, coupling IFAS with anaerobic ammonium oxidation (Anammox) can further improve efficiency biological denitrification. This paper summarises research progress coupled anammox process, including partial nitrification anammox, simultaneous denitrification, denitrification technologies, describes factors that limit development related processes. effects dissolved oxygen, influent carbon source, retention time, temperature, microbial community, nitrite‐oxidising bacteria inhibition methods on are presented. At this gives an outlook future focus engineering practice direction process.

Language: Английский

Citations

7
Progress in Characteristics and Influencing Factors of Microorganisms Controlling Nitrogen Cycle in the Hyporheic Zone of a River DOI

宇鹏 周

Advances in Geosciences, Journal Year: 2025, Volume and Issue: 15(03), P. 281 - 292

Published: Jan. 1, 2025

Language: Английский

Citations

0
Mainstream application of the partial denitrification-anammox process for carbon-neutral wastewater treatment: A review DOI
Hyungjoon Im, Soyeon Jeong, Hyun‐Han Kwon

et al.

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 72, P. 107558 - 107558

Published: March 30, 2025

Language: Английский

Citations

0
Coupling Anaerobic–Oxic and Integrated Fixed–Activated Sludge Processes for Removal and Transformation of Refractory Organic Matter in Livestock and Poultry Digestate DOI
Bingxin Li, Heyang Yuan, Zheng Ge

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2025, Volume and Issue: unknown

Published: April 16, 2025

Abstract Effective treatment of livestock and poultry digestate remains challenging due to its high content refractory organic matter. In this study, a coupled anaerobic–oxic (A/O) integrated fixed–film activated sludge (IFAS) system was investigated evaluate capacity for removal molecular transformation. The IFAS outperformed the A/O system, achieving an efficiency 43%, compared 17% in process. Molecular analyses revealed distinct transformation pathways: process tended increase weight structural complexity dissolved matter, whereas promoted oxidative fragmentation, resulting formation smaller, oxygen–rich compounds. These changes were reflected key indices (DBE, NOSC, AI mod ) accumulation carboxyl–rich intermediates. Microbial community analysis associated Bacteroidota with degradation oxygenated compounds via hydrolytic processes, while Actinobacteria Deinococcota linked lignin– derived aromatics. integration advanced characterization microbial profiling highlights system’s enhanced capability both simplification biodegradation complex organics, providing promising strategy high–strength wastewater.

Language: Английский

Citations

0
Reducing Methane, Carbon Dioxide, and Ammonia Emissions from Stored Pig Slurry Using Bacillus-Biological Additives and Aeration DOI Open Access
Oumaima El bied,

Martire Angélica Terrero Turbí,

Melisa Gómez Garrido

et al.

Environments, Journal Year: 2024, Volume and Issue: 11(8), P. 171 - 171

Published: Aug. 12, 2024

This study delves into the innovative application of a novel bacterial and enzyme mixture alone or combined with aeration in mitigating emissions from pig slurry storage explores their impacts on methane (CH4), carbon dioxide (CO2), ammonia (NH3) stored slurry. A dynamic chamber was used this research to assess efficacy treatments. Biological additives (HIPO-PURÍN) specific microbial strains were tested (a ofof Bacillus subtilis, megaterium, licheniformis, amyloliquefacien, thuringiensis) an system (OXI-FUCH). Controlled experiments simulated conditions, where ammonia, methane, measured. By analyzing results statistically, treatment HIPO-PURÍN demonstrated significant reduction CH4 by 67% CO2 60% use biological additives, which increased 99% 87%, respectively, when OXI-FUCH aeration, compared untreated Ammonia substantially reduced 90% 76% aeration. The driven need develop sustainable solutions for livestock waste management, particularly reducing It introduces techniques that significantly lower greenhouse gases, aligning circular economy goals setting new standard agriculture. Furthermore, there is validate farmers can independently manage using simple effective treatments profound environmental benefits, encouraging broader adoption climate-conscious practices.

Language: Английский

Citations

3
A comprehensive analysis of microbial community differences in four morphologies of mainstream anaerobic ammonia oxidation systems using big-data mining and machine learning DOI Creative Commons
Shijie Zhou,

Weidi Zhu,

Yuhang He

et al.

Frontiers in Marine Science, Journal Year: 2024, Volume and Issue: 11

Published: Sept. 4, 2024

Achieving carbon neutrality in wastewater treatment plants relies heavily on mainstream anaerobic ammonia oxidation. However, the stability of this process is often compromised, largely due to significant influence microbial morphology. This study analyzed 208 samples using bioinformatics and machine learning (ML) across four different morphologies: Suspended Sludge (SS), Biofilm, Granular (GS) Integrated Fixed-film Activated (IFAS). The results revealed IFAS’s notably complex stable community structure, along with identification endemic genera common among morphologies. Through co-occurrence network analysis, interaction between microorganisms various was displayed. Utilizing Extreme Gradient Boosting (XGBoost) model, a ML modeling framework based microbiome data developed. ML-based feature importance analysis identified LD-RB-34 as key organism SS BSV26 an important bacterium IFAS. Additionally, functional bacteria KF-JG30-C25 occupied higher proportion GS, Unclassified Brocadiaceae Biofilm. Furthermore, dissolved oxygen, temperature pH were primary factors determining communities influencing anammox activity. Overall, deepens our understanding bacterial enhance nitrogen removal.

Language: Английский

Citations

0