When faced with a shortage of oxygen, many bacterial species use nitrate to support
respiration via the process of denitrification. This takes place extensively in nitrogen-rich …

The metallobiochemistry underlying the formation of the inorganic N–N-bond-containing
molecules nitrous oxide (N2O), dinitrogen (N2), and hydrazine (N2H4) is essential to the …

Nitrous oxide (N2O) is a potent greenhouse gas and the predominant ozone depleting
substance. The only enzyme known to reduce N2O is the nitrous oxide reductase, encoded …

Agricultural and industrial practices more than doubled the intrinsic rate of terrestrial N
fixation over the past century with drastic consequences, including increased atmospheric …

Many biotic and abiotic processes contribute to nitrous oxide (N2O) production in the
biosphere, but N2O consumption in the environment has heretofore been attributed primarily …

Soda lakes are salt lakes with a naturally alkaline pH due to evaporative concentration of
sodium carbonates in the absence of major divalent cations. Hypersaline soda brines harbor …

Temperature is a key element affecting the activity of microorganisms in activated sludge.
Low water temperature generally leads to decreasing wastewater treatment efficiency and …

Microbial activities in soils, such as (incomplete) denitrification, represent major sources of
nitrous oxide (N2O), a potent greenhouse gas. The key enzyme for mitigating N2O …

Aerobic sludge granulation was rapidly obtained in the erlenmeyer bottle and sequencing
batch reactor (SBR) using piggery wastewater. Aerobic granulation occurred on day 3 and …

Due to limited land availability in municipal wastewater treatment plants, integrated fixed-film
activated sludge (IFAS) technology offers significant advantages in improving nitrogen …