In this work, the biological denitrification associated with anoxic oxidation of methane and the microbial diversity involved were studied. Kinetic tests for nitrate (NO3-) and nitrite (NO2-) removal ...

Schematic lay-out of a typical sewage treatment plant with pre-denitrification. The removal of nitrogen in the pre-denitrification stage is carried out by denitrifying heterotrophic bacteria capable ...

Denitrification is a microbial respiratory process in which oxidized nitrogen species, primarily nitrate (NO₃⁻) and nitrite (NO₂⁻), are sequentially reduced to gaseous forms such as nitric oxide (NO), ...

This process involves aggregating sludge into dense flocs with low SVI30 values, utilizing equipment such as hydrocyclones and centrifuges, and applying chemicals like chlorine or biocides to prevent ...

A recent study published in Engineering has shed new light on the mechanisms behind the efficient nitrogen removal capabilities of pyrite-based mixotrophic denitrifying biofilters. The research, ...

Some microbes living on sand grains use up all the oxygen around them. Their neighbors, left without oxygen, make the best of it: They use nitrate in the surrounding water for denitrification -- a ...

"Nitrogen is a major nutrient that regulates marine primary production in a large portion of the ocean. However, nitrogen input from human-related activities causes an excessive amount of nutrients ...

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The massive discharge of nitrogen-containing substances is an important cause of water eutrophication and environmental pollution. Nitrification and denitrification technologies are used in ...

Sun et al. provide new insights into how the process of denitrification takes place, into competition and cooperation between denitrifiers and other microbial groups and processes, and into the ...