Characteristics of Nitrogen Removal from an Integrated Fixed-Film Activated Sludge (IFAS) System and the Relationship between Activated Sludge and Biofilm Interactions DOI Open Access

Zishuo Tuo,

Long Bai, Baoping Zhang

et al.

Water, Journal Year: 2024, Volume and Issue: 16(21), P. 3040 - 3040

Published: Oct. 23, 2024

In order to investigate the enhancement mechanism of modified three-dimensional elastic filler (MTEF) on nitrogen removal performance integrated fixed-film activated sludge (IFAS) process, and clarify interactions between competition synergy biofilm in IFAS system, an reactor (T2) filled with MTEF was employed for study, while a sequencing batch process (SBR) (T1) utilized comparison. SBR reactors were operated over extended period at ambient temperature assess pollutant addition competitive dynamics under varying influent water qualities (C/N, N/P, organic loading), analyze synergistic relationship microbial level using high-throughput technology. The results demonstrate that throughout entire operational phase, T2 exhibited superior efficiency. Compared T1, achieved average increase rates COD, ammonia nitrogen, total by 13.07%, 12.26%, 28.96%, respectively. findings indicate nitrification volumetric load system is significantly higher than pure suggesting possesses enhanced capabilities. Furthermore, when dealing wastewater characterized low C/N ratios high phosphorus pollution, or substantial loads, holds edge exhibits improved stability. High-throughput data reveal community structures can influence each other, thereby enabling effectively enrich denitrification-related functional populations. Additionally, has certain enhancing effect expression levels metabolism-related genes phase microorganisms, indicating that, interactions, there also sludge.

Language: Английский

Enhanced nitrogen removal from low C/N municipal wastewater through nitrification, partial denitrification and anammox via a step-feed strategy: Synergistic contribution by bacteria in biofilm and floc sludge DOI
Wenjie Li, Lu Wang, Xiaodi Li

et al.

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 66, P. 106084 - 106084

Published: Sept. 1, 2024

Language: Английский

Citations

6
Refractory dissolved organic matters in sludge leachate trigger the combination of anammox and denitratation for advanced nitrogen removal DOI
Ben Dai, Yifeng Yang, Zuobin Wang

et al.

Water Research, Journal Year: 2024, Volume and Issue: 257, P. 121678 - 121678

Published: April 25, 2024

Language: Английский

Citations

5
Anaerobic treatment of nitrogenous industrial organic wastewater by carbon–neutral processes integrated with anaerobic digestion and partial nitritation/anammox: Critical review of current advances and future directions DOI
Zixuan Deng,

Chengde Sun,

Guangyi Ma

et al.

Bioresource Technology, Journal Year: 2024, Volume and Issue: unknown, P. 131648 - 131648

Published: Oct. 1, 2024

Language: Английский

Citations

5
Advanced nitrogen removal from extremely low carbon/nitrogen ratio municipal wastewater by optimizing multiple pathways based on step-feed and intermittent aeration DOI
Yanru Cui, Liang Zhang, Hanbin Wang

et al.

Bioresource Technology, Journal Year: 2025, Volume and Issue: 421, P. 132202 - 132202

Published: Feb. 9, 2025

Language: Английский

Citations

0
Exploring transformation of dissolved organic matters and dissolved organic nitrogen in full-scale anammox wastewater treatment: Temperature and microbial roles DOI
Tong Zhou,

Qiushan Liu,

Shujun Zhang

et al.

Bioresource Technology, Journal Year: 2024, Volume and Issue: 408, P. 131150 - 131150

Published: July 23, 2024

Language: Английский

Citations

2
Towards the application of mainstream low-carbon anammox wastewater treatment technologies: strategies, innovations, and prospects DOI
Wentao Pan, Liu Hong, Yongzhi Chen

et al.

Frontiers of Chemical Science and Engineering, Journal Year: 2024, Volume and Issue: 19(2)

Published: Nov. 22, 2024

Language: Английский

Citations

1
Elucidating the potential of nitrifying bacteria in mitigating nitrogen pollution and its industrial application DOI Open Access
Pallavi Sharma, Krishna Kanta Pandey, Ayush Lepcha

et al.

Microsphere, Journal Year: 2023, Volume and Issue: 2(2), P. 246 - 259

Published: Dec. 25, 2023

Nitrifying bacteria are specialized microorganisms that actively participate in the nitrification process, which involves conversion of ammonia (NH3) into nitrite (NO2-) and subsequently nitrate (NO3-). Extensive human activities such as agriculture, thermal power generation, automobile exhaust have led to an increase amounts greenhouse gases nitrogen pollution soil water. This comprehensive review highlights importance nitrogen-related processes for environmental sustainability role nitrifying combating pollution. The focus current work is a detailed exploration diverse classes their respective roles processes. Furthermore, study explores practical applications different bacteria, extending beyond process. explored potential wastewater treatment, biodegradation micropollutants, treatment municipal solid waste leachate, showcasing versatility these addressing broader challenges.

Language: Английский

Citations

2
Variation of Dom and Don During a Full-Scale Mainstream Anammox Wastewater Treatment Plant DOI
Tong Zhou,

Qiushan Liu,

Shujun Zhang

et al.

Published: Jan. 1, 2024

Variation of dissolved organic matters (DOM) in mainstream anammox process was seldomly paid attention. This study systematically characterized the composition DOM and nitrogen (DON) a full-scale wastewater treatment plant (WWTP) by using spectroscopy Fourier transform-ion cyclotron resonance mass spectrometry. Roles bacterial community structures related with temperatures on DON transformations WWTP were especially analyzed. Results indicated that removed highly bioavailable S-containing while producing higher unsaturated, more aromatic, N-containing DOM. In WWTP, relative abundance Proteobacteria Chloroflexi at low temperature resulted greater removal rates proteins, SMP-like humic acid-like substances. At high temperature, Actinobacteriota increased lignin production. According to results principal component analysis, significantly impacted characteristics compared DON.

Language: Английский

Citations

0
Evidence of Potential Anammox Activities from Rice Paddy Soils in Microaerobic and Anaerobic Conditions DOI Creative Commons

Anamika Khanal,

Hyung-Geun Song,

Yu-Sung Cho

et al.

Biology, Journal Year: 2024, Volume and Issue: 13(7), P. 548 - 548

Published: July 19, 2024

Anammox, a reaction in which microorganisms oxidize ammonia under anaerobic conditions, is used the industry to remove ammonium from wastewater an environmentally friendly manner. This process does not produce intermediate products such as nitrite or nitrate, can act secondary pollutants soil and water environments. For industrial applications, anammox bacteria should be obtained environment cultivated. Anammox generally exhibit slow growth rate may large number of cells due their metabolism. Additionally, habitats appear limited specific environments, oxidation-reduction transition zones. Consequently, most that are studied originate marine In this study, bacterial evidence was found rice paddy cultured various conditions aerobic, microaerobic, batch incubations determine whether enrichment possible. The anammox-specific gene (hzsA) microbial community analyses were performed on incubated soils. Although it easy enrich co-occurrence denitrification nitrification based chemistry data, potential existence assumed terrestrial environment. uses, could searched for soils by applying optimal conditions.

Language: Английский

Citations

0
Characteristics of Nitrogen Removal from an Integrated Fixed-Film Activated Sludge (IFAS) System and the Relationship between Activated Sludge and Biofilm Interactions DOI Open Access

Zishuo Tuo,

Long Bai, Baoping Zhang

et al.

Water, Journal Year: 2024, Volume and Issue: 16(21), P. 3040 - 3040

Published: Oct. 23, 2024

In order to investigate the enhancement mechanism of modified three-dimensional elastic filler (MTEF) on nitrogen removal performance integrated fixed-film activated sludge (IFAS) process, and clarify interactions between competition synergy biofilm in IFAS system, an reactor (T2) filled with MTEF was employed for study, while a sequencing batch process (SBR) (T1) utilized comparison. SBR reactors were operated over extended period at ambient temperature assess pollutant addition competitive dynamics under varying influent water qualities (C/N, N/P, organic loading), analyze synergistic relationship microbial level using high-throughput technology. The results demonstrate that throughout entire operational phase, T2 exhibited superior efficiency. Compared T1, achieved average increase rates COD, ammonia nitrogen, total by 13.07%, 12.26%, 28.96%, respectively. findings indicate nitrification volumetric load system is significantly higher than pure suggesting possesses enhanced capabilities. Furthermore, when dealing wastewater characterized low C/N ratios high phosphorus pollution, or substantial loads, holds edge exhibits improved stability. High-throughput data reveal community structures can influence each other, thereby enabling effectively enrich denitrification-related functional populations. Additionally, has certain enhancing effect expression levels metabolism-related genes phase microorganisms, indicating that, interactions, there also sludge.

Language: Английский

Citations

0