Microbial Nitrogen Removal and Nitrous Oxide Emissions in Wastewater and Soil Systems
This community investigates how microbial processes remove nitrogen from wastewater and agricultural soils, specifically focusing on the unintended production of nitrous oxide during these treatments.
The research centers on the mechanisms of nitrification and denitrification, with a heavy emphasis on quantifying and mitigating nitrous oxide emissions. Recurring methods include the use of activated sludge, granular sludge, and constructed wetlands for municipal and industrial wastewater treatment. A significant portion of the work examines the impact of nitrogen fertilizer application on soil nitrogen cycling and greenhouse gas release. The microbial communities involved are frequently characterized to understand their role in converting nitrate to nitrogen gas versus nitrous oxide. Applications span water quality improvement in rivers and lakes, as well as reducing the environmental footprint of agricultural practices. The interplay between carbon sources and nitrogen removal efficiency is a consistent theme, alongside the development of biofilm reactors and autotrophic denitrification processes.
The largest share of the community's output is found in nitrogen research, accounting for 6.3% of all tracked nitrogen studies, which also represents the highest paper count within this group at 33,479 papers.
This community comprises 51,530 papers, published most frequently in Bioresource Technology, Water Research, and the Journal of Water Process Engineering.
Recent work continues to focus on optimizing microbial pathways for nitrogen removal, with specific attention to anammox processes and the management of nitrous oxide emissions in constructed wetlands and granular sludge systems.