Results 21 to 30 of about 77,524 (304)
Physico-chemical technologies for nitrogen removal from wastewaters: a review
The paper examines the main physico-chemical processes for nitrogen removal from wastewaters, considering both those that have been long known and still widely applied at the industrial scale, and those that are still at the research level.
Andrea G. Capodaglio +2 more
doaj +1 more source
Experiments were conducted on a laboratory drop tube furnace for the single-firing of ammonia and coal, as well as co-firing, combined with numerical simulations to investigate the NO formation characteristics, intermediate reaction processes and ammonia-
WANG Huakun +4 more
doaj +1 more source
Long-Term Effects of Trace NO2 Addition on the Performance of CANON SBR [PDF]
Two parallel CANON Sequencing Bach reactors were started, and 67ppm NO2 was added into Sequencing Bach Reactor 2 while nothing was added to Sequencing Bach Reactor 1.
Qing Cai, Jiajia Ding
doaj +1 more source
Apparent contribution of complete ammonia-oxidizing organisms (comammox) to the global nitrogen cycle highlights the necessity for understanding niche differentiation of comammox bacteria among other ammonia oxidizers. While the high affinity for ammonia
Ekaterina Y. Gottshall +5 more
doaj +1 more source
Oxidation of Ammonia with Molecular Complexes
Oxidation of ammonia by molecular complexes is a burgeoning area of research, with critical scientific challenges that must be addressed. A fundamental understanding of individual reaction steps is needed, particularly for cleavage of N-H bonds and formation of N-N bonds.
Peter L. Dunn +4 more
openaire +3 more sources
Situation and prospects of treatment technologies for mine water containing ammonia nitrogen
As the discharge standards for mine water treatment become more stringent, the requirements for effective removal of ammonia nitrogen from mine water are strongly needed.
LI Fuqin* +4 more
doaj +1 more source
Ammonia-oxidizing archaea have more important role than ammonia-oxidizing bacteria in ammonia oxidation of strongly acidic soils [PDF]
Abstract Increasing evidence demonstrated the involvement of ammonia-oxidizing archaea (AOA) in the global nitrogen cycle, but the relative contributions of AOA and ammonia-oxidizing bacteria (AOB) to ammonia oxidation are still in debate. Previous studies suggest that AOA would be more adapted to ammonia-limited oligotrophic conditions,
Li-Mei, Zhang +3 more
openaire +2 more sources
Electrocatalytic Ammonia Oxidation by a Low Coordinate Copper Complex
Molecular catalysts for ammonia oxidation to dinitrogen represent enabling components to utilize ammonia as a fuel and/or source of hydrogen. Ammonia oxidation requires not only the breaking of multiple strong N-H bonds, but also controlled N-N bond ...
Mahdi, Raghibi Boroujeni +6 more
core +1 more source
Nitrification, the oxidative process converting ammonia to nitrite and nitrate, is driven by microbes and plays a central role in the global nitrogen cycle.
Arda Gülay +7 more
doaj +1 more source
Manganese-Catalyzed Ammonia Oxidation into Dinitrogen
Base metal-catalyzed oxidative conversion of ammonia into dinitrogen is a promising process to utilize ammonia as an energy carrier. In this study, we report the manganese-catalyzed ammonia oxidation under chemical and electrochemical conditions ...
Ken, Sakata +3 more
core +1 more source

