Response Mechanism of a Highly Efficient Partial Nitritation-Anammox (Pn/A) Process Under Antibiotic Stress: Extracellular Polymers, Microbial Community and Functional Genes DOI
Yingqiang Li, Zhenguo Chen, Yuexiang Huang

et al.

Published: Jan. 1, 2023

The Partial nitritation-Anammox (PN/A) process can be restricted when treating high ammonia nitrogen wastewater containing antibiotics. This study aims to explore the response mechanism of PN/A under antibiotic stress. Results showed achieved a removal rate higher than 1.01 ± 0.03 kg N/m3/d long-term sulfamethazine increase extracellular polymers from 22.52 43.96 mg/g VSS was conducive resisting inhibitory. Denitratisoma and SM1A02 abundance as well functional genes nirS nirK indicated denitrifiers should play an important role for stability system In addition, antibiotic-resistant (ARGs) sul1 intI1 significantly increased by 8.78 5.12 times initial values maintain resistance uncovers stress, offering scientific basis guidance further application in future.

Language: Английский

Response mechanism of a highly efficient partial nitritation-anammox (PN/A) process under antibiotic stress: Extracellular polymers, microbial community, and functional genes DOI
Yingqiang Li, Zhenguo Chen, Yuexiang Huang

et al.

Environmental Research, Journal Year: 2024, Volume and Issue: 251, P. 118575 - 118575

Published: Feb. 29, 2024

Language: Английский

Citations

10
Nitrogen removal performance and microbial community characteristics of a submerged macrophyte pond–constructed wetland composite system DOI
Zhifei Wang, Yihua Dong,

Jing Xu

et al.

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 72, P. 107492 - 107492

Published: March 20, 2025

Language: Английский

Citations

0
Deciphering key microbes and their interactions within anaerobic ammonia oxidation systems DOI

Yuliang Zhu,

Dong Li,

Ben Ma

et al.

Bioresource Technology, Journal Year: 2024, Volume and Issue: 416, P. 131799 - 131799

Published: Nov. 10, 2024

Language: Английский

Citations

3
Start-up of anammox in an up-flow anaerobic sludge bed reactor: bacterial community composition and antibiotic resistance genes DOI Creative Commons
Xin Li, Junqin Yao, Yangyang Jia

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: June 13, 2024

Abstract Anaerobic ammonia oxidation (anammox) is considered a high-efficiency and low-consumption biological nitrogen removal process. In this study, synthetic wastewater was used to start an up-flow anaerobic sludge bed reactor with starting temperature of 20–31℃, subsequently, the activated samples were analyze changes in bacterial community antibiotic resistance genes (ARGs) by metagenomic sequencing. The results showed that reaction successfully started up after 132 days cultivation, achieving NH4+-N NO2−-N rates over 99.5%. Candidatus Kuenenia, anammox bacterium, increased from 0.01 50.86%. denitrifying bacteria Delftia, Acidovorax, Thauera Alicycliphilus decreased 18.70, 8.02, 4.94 4.59% 7.01, 1.77, 3.06 3.96%, respectively. ammonia-oxidizing bacterium Nitrosomonas 2.91 1.87%. After relative abundance ARGs 90.23 64.29 ppm, sulfonamide, macrolide-lincosamide-streptogramin, tetracycline, aminoglycoside multidrug being main types. Additionally, ARG subtypes sul1, msrE tetX decreased, while ermF, sul2 floR increased. These contribute knowledge performance, composition reactor, providing guidance for anammox.

Language: Английский

Citations

0
Initiation of Anammox in an Up-Flow Anaerobic Sludge Bed Reactor: Bacterial Community Structure, Nitrogen Removal Functional Genes, and Antibiotic Resistance Genes DOI Open Access
Xin Li, Junqin Yao, Yangyang Jia

et al.

Water, Journal Year: 2024, Volume and Issue: 16(23), P. 3426 - 3426

Published: Nov. 28, 2024

Anaerobic ammonia oxidation (anammox) is considered an efficient and low-energy biological nitrogen removal process. However, there are limited studies addressing the changes in antibiotic resistance genes (ARGs) during startup of anammox reactor inoculated with activated sludge. In this study, up-flow anaerobic sludge bed (UASB) was initiated synthetic wastewater at room temperature (20–28 °C). Metagenomic sequencing employed to analyze shifts bacterial community, functional genes, ARGs both seeding The results show that achieved activity after 122 days cultivation, NH4+-N NO2−-N rates reaching 99.8% 99.6%, respectively. Compared those sludge, relative abundance bacterium Candidatus kuenenia increased from 0.01% 50.86%, while denitrifying Acidovorax bacteria decreased 8.02% 1.77%. Meanwhile, Nitrosomonas declined 2.91% 1.87%. hzs, hdh, nirK, nirS 294.77 RPKM 155.62 These findings offer valuable insights into initiation process using ordinary as inoculum provide a scientific basis for mitigation through technology.

Language: Английский

Citations

0
Reinforcing natural attenuation of Cr(VI) in groundwater through single- and composite BDOM-NEVO reagents: performance contrast and mechanistic insights DOI Creative Commons

Zhenjun Zhou,

Shiyu Wang,

Baonan He

et al.

Environmental Technology & Innovation, Journal Year: 2024, Volume and Issue: unknown, P. 103967 - 103967

Published: Dec. 1, 2024

Language: Английский

Citations

0
Performance and microbial community analysis of SBR and MBBR systems under different operational modes for oil shale retorting wastewater treatment DOI
Yiliu Liu, Di Luo, Biao Liu

et al.

Biochemical Engineering Journal, Journal Year: 2024, Volume and Issue: 215, P. 109618 - 109618

Published: Dec. 14, 2024

Language: Английский

Citations

0
Response Mechanism of a Highly Efficient Partial Nitritation-Anammox (Pn/A) Process Under Antibiotic Stress: Extracellular Polymers, Microbial Community and Functional Genes DOI
Yingqiang Li, Zhenguo Chen, Yuexiang Huang

et al.

Published: Jan. 1, 2023

The Partial nitritation-Anammox (PN/A) process can be restricted when treating high ammonia nitrogen wastewater containing antibiotics. This study aims to explore the response mechanism of PN/A under antibiotic stress. Results showed achieved a removal rate higher than 1.01 ± 0.03 kg N/m3/d long-term sulfamethazine increase extracellular polymers from 22.52 43.96 mg/g VSS was conducive resisting inhibitory. Denitratisoma and SM1A02 abundance as well functional genes nirS nirK indicated denitrifiers should play an important role for stability system In addition, antibiotic-resistant (ARGs) sul1 intI1 significantly increased by 8.78 5.12 times initial values maintain resistance uncovers stress, offering scientific basis guidance further application in future.

Language: Английский

Citations

0