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Updated: Jul 7, 2026
07:59
Estimating Sediment Denitrification Rates Using Cores and N2O Microsensors
Published on: December 6, 2018
[Research advances in aerobic denitrifiers].
Wei Wang1, Zu-cong Cai, Wen-hui Zhong
1College of Life Science, Nanjing Normal University, Nanjing 210097, China. xiaojuhao_2001@163.com
Ying Yong Sheng Tai Xue Bao = the Journal of Applied Ecology
|February 12, 2008
Summary
This study reviews aerobic denitrifiers, bacteria that remove nitrogen under oxygen-rich conditions. Key factors like dissolved oxygen and C/N ratio influence their efficiency in applications like wastewater treatment.
Area of Science:
- Microbiology
- Environmental Science
Context:
- Aerobic denitrification is a crucial microbial process for nitrogen removal in oxygen-rich environments.
- Understanding aerobic denitrifiers is vital for optimizing nitrogen cycling in various ecosystems.
Purpose:
- To review the characteristics and mechanisms of aerobic denitrifiers.
- To identify factors influencing aerobic denitrification and methods for screening these microorganisms.
- To summarize the applications and environmental contributions of aerobic denitrifiers.
Summary:
- Aerobic denitrifiers, including genera like Pseudomonas, Alcaligenes, Paracoccus, and Bacillus, perform denitrification under aerobic conditions, primarily producing N2O and converting NH4+-N to gas.
- Periplasmic nitrate reductase is key, and dissolved oxygen concentration and C/N ratio are major influencing factors.
- Screening methods like intermittent aeration and selective culture are employed.
Impact:
- Advances understanding of nitrogen removal processes in aquaculture and wastewater treatment.
- Highlights the role of aerobic denitrifiers in the biodegradation of organic pollutants.
- Provides insights into soil nitrogen emissions and microbial contributions to environmental nitrogen management.
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