Results 41 to 50 of about 210,845 (301)
Genomic Inference of the Metabolism and Evolution of the Archaeal Phylum Aigarchaeota [PDF]
, 2018 Microbes of the phylum Aigarchaeota are widely distributed in geothermal environments, but their physiological and ecological roles are poorly understood.
Castelle, Cindy J. +14 more
core +3 more sources
Nitrogen removal and ammonia-oxidising bacteria in a vertical flow constructed wetland treating inorganic wastewater [PDF]
, 2011 Nitrogen removal performance and the ammonia-oxidising bacterial (AOB) community were assessed in the batch loaded 1.3ha saturated surface vertical flow wetland at CSBP Ltd, a fertiliser and chemical manufacturer located in Kwinana, Western Australia ...
Dallas, S. +4 more
core +2 more sources
Gas-Phase and Aqueous Photocatalytic Oxidation of Methylamine: The Reaction Pathways
International Journal of Photoenergy, 2007 Photocatalytic oxidation (PCO) of methylamine (MA) on titanium dioxide in aqueous and gaseous phases was studied. A simple batch glass reactor for aqueous PCO and an annular continuous flow reactor for the gas-phase PCO were used.
Anna Kachina +3 more
doaj +1 more source
Testing the influence of light on nitrite cycling in the eastern tropical North Pacific [PDF]
BiogeosciencesLight is considered a strong controlling factor of nitrification rates in the surface ocean. Previous work has shown that ammonia oxidation and nitrite oxidation may be inhibited by high light levels, yet active nitrification has been measured in the ...
N. M. Travis +5 more
doaj +1 more source
Cyclic Conversions in the Nitrogen Cycle
Frontiers in Microbiology, 2021 The cyclic nature of specific conversions in the nitrogen cycle imposes strict limitations to the conversions observed in nature and explains for example why anaerobic ammonium oxidation (anammox) bacteria can only use nitrite – and not nitrate – as ...
Robbert Kleerebezem, Sebastian Lücker
doaj +1 more source
Anoxic nitrification in marine sediments [PDF]
, 2004 Nitrate peaks are found in pore-water profiles in marine sediments at depths considerably below the conventional zone of oxic nitrification. These have been interpreted to represent nonsteady- state effects produced by the activity of nitrifying ...
Anschutz, P. +8 more
core +1 more source
Isolation of Ammonia‐oxidizing Autotrophic Bacteria
Journal of Applied Bacteriology, 1968 SUMMARY Procedures are described for isolating ammonia‐oxidizing autotrophic bacteria in pure culture, using solid media made from purified agar and appropriate micromanipulations.
Soriano, S., Walker, N.
openaire +2 more sources
ChemEngineering, 2021 Its relatively low cost and high surface area makes activated carbon an ideal adsorbent candidate for H2S removal. However, physical adsorption of H2S is not very effective; therefore, methods to facilitate reactive H2S oxidation on carbons are of ...
Christian Frilund +2 more
doaj +1 more source
Autotrophic ammonia oxidation by soil thaumarchaea [PDF]
Proceedings of the National Academy of Sciences, 2010 Nitrification plays a central role in the global nitrogen cycle and is responsible for significant losses of nitrogen fertilizer, atmospheric pollution by the greenhouse gas nitrous oxide, and nitrate pollution of groundwaters. Ammonia oxidation, the first step in nitrification, was thought to be performed by autotrophic bacteria ...
Li-Mei, Zhang +5 more
openaire +2 more sources
Expansion of Thaumarchaeota habitat range is correlated with horizontal transfer of ATPase operons. [PDF]
, 2019 Thaumarchaeota are responsible for a significant fraction of ammonia oxidation in the oceans and in soils that range from alkaline to acidic. However, the adaptive mechanisms underpinning their habitat expansion remain poorly understood.
Bartlett, Douglas H +24 more
core +2 more sources