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Inhibitory effect of phenol on wastewater ammonification
Bioresource Technology, 2020This study aimed to elucidate inhibitory effect of phenol on ammonification of dissolved organic nitrogen (DON) in wastewater. Laboratory incubation experiments were conducted using primary and secondary effluent samples spiked with phenol (100-1000 mg/L) and inoculated with mixed cultures, pure strains of phenol-degrading bacteria (Acinetobacter sp ...
Chaiwat, Rongsayamanont +3 more
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Photo-ammonification in surface water samples: Mechanism and influencing factors
Science of The Total Environment, 2021Dissolved organic nitrogen (DON) accounts for a large proportion of the total aquatic nitrogen. Compared with dissolved inorganic nitrogen (DIN), the reactivity of DON has received limited attention. Photo-ammonification contributes significantly to the transformation of DON to DIN. However, information on the mechanism of this process is limited. This
Yanwen, Yang +3 more
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Denitrification and ammonification at low soil temperatures
Canadian Journal of Soil Science, 1991A laboratory study was conducted to determine the effects of temperatures from −2 to 25 °C on denitrification and ammonification in anaerobic soil treated with alfalfa or glucose. Organic C substrate as alfalfa or glucose increased denitrification rates at all temperatures within this range and lowered the threshold temperature at which ...
S. Dorland, E. G. Beauchamp
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Nitrate — Ammonification in Groundnut Rhizobium Strain 6050 Grown Microaerobically1
Biochemie und Physiologie der Pflanzen, 1986Summary In groundnut Rhizobium strain 6050 grown microaerobically in culture solution with nitrate, almost all the activity (>95%) of nitrate reductase (NR) was localized in the particulate fraction (176,000 x g), while total activity of nitrite reductase (NiR) was present in the soluble fraction.
A.T. Reddy, M.L. Lodha
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Dissimilatory nitrate and nitrite ammonification by sulphate-reducing eubacteria
2007Dissimilatory nitrate and nitrite ammonification by sulphate-reducing ...
Moura, José J.G. +3 more
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Coordinate induction of dissimilatory ammonification and fermentative pathways in rhizobia
Antonie van Leeuwenhoek, 2009Dissimilatory ammonification was indicated as the common feature of ten rhizobial strains representing six species and three genera. In the absence of external electron acceptors, all investigated strains were capable of ethanolic fermentation. However, induction of anaerobic nitrite reduction was shown to be coupled with a shift of fermentation ...
Władysław, Polcyn, Justyna, Podeszwa
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Growth and characterization of the InN film ammonification technique
Physica E: Low-dimensional Systems and Nanostructures, 2008Abstract InN film was synthesized by ammoniating indium film on Si(1 1 1) substrates. The samples were analyzed by X-ray diffraction (XRD), X-ray photo-electron spectroscopy (XPS), atomic force microscopy (AFM) and transmission electron microscopy (TEM). The XRD and TEM show that nanoparticles were hexagonal InN single crystals.
Fuxue Wang +7 more
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Is ammonification the rate limiting step for nitrification kinetics?
Bioresource Technology, 2012This study investigated relative magnitude of hydrolysis and ammonification by separate analysis of ammonia release and nitrification mechanisms. A peptone mixture was used as substrate in two parallel experiments seeded with nitrifying biomass conducted with and without nitrification inhibitor.
Tugce, Katipoglu-Yazan +3 more
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Nitrification and ammonification in aquatic systems.
Life support & biosphere science : international journal of earth space, 1997Nitrification is an essential step in the nitrogen cycle of natural systems because it links organic matter degradation to fixed nitrogen loss. Ammonium released by ammonification is oxidized to nitrate by nitrification, and can then be reduced to dinitrogen gas by denitrification, resulting in net loss of fixed nitrogen from the system.
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Arbuscular mycorrhizal fungi enhance nitrate ammonification in hyphosphere soil
New PhytologistSummary Microbial nitrate ammonification is a crucial process to retain nitrogen (N) in soils, thereby reducing N loss. Nitrate ammonification has been studied in enrichment and axenic bacterial cultures but so far has been merely ignored in environmental studies. In
Ruotong Zhao +6 more
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