Results 21 to 30 of about 28,805 (221)

Influence of bioturbation on denitrification activity in Mediterranean coastal sediments:an in situ experimental approach [PDF]

, 1998
An in situ experiment was conducted in the French Mediterranean littoral (Gulf of Fos) from July 1993 to January 1994 using controls without macrofauna or natural sediments.
Bonin, Patricia, Stora, Georges, Gilbert, Franck   +2 more
core   +1 more source

Low probability of initiating nirS transcription explains observed gas kinetics and growth of bacteria switching from aerobic respiration to denitrification. [PDF]

PLoS Computational Biology, 2014
In response to impending anoxic conditions, denitrifying bacteria sustain respiratory metabolism by producing enzymes for reducing nitrogen oxyanions/-oxides (NOx) to N2 (denitrification).
Junaid Hassan, Linda L Bergaust, I David Wheat, Lars R Bakken   +3 more
doaj   +1 more source

Influence of shellfish farming activities on nitrification, nitrate reduction to ammonium and denitrification at the water-sediment interface of the Thau lagoon, France [PDF]

, 1997
The seasonal patterns of nitrification, denitrification and dissimilatory ammonium production (DAP) rates were studied in the sediment of 2 stations in the Thau lagoon (south of France).
Bonin, Patricia, Bianchi, Micheline, Gilbert, Franck, Souchu, Philippe   +3 more
core   +1 more source

The nitrogen isotope effect of benthic remineralization-nitrification-denitrification coupling in an estuarine environment [PDF]

, 2011
The nitrogen (N) stable isotopic composition of pore water nitrate and total dissolved N (TDN) was measured in sediments of the St. Lawrence Estuary and the Gulf of St. Lawrence.
Lehmann, M. F., M. Alkhatib, P. A. del Giorgio, Alkhatib, M., del Giorgio, P. A., M. F. Lehmann, Arroyave Gómez, Diana Marcela   +6 more
core   +1 more source

Denitrification in Seepage-Irrigated Vegetable Fields in South Florida

EDIS, 2019
The objectives of this article are to: • describe denitrification and the factors known to affect its rate, • present current methods available for the measurement of denitrification rate, • summarize available estimates of denitrification rate ...
Eric H. Simonne, Guodong Liu, Benjamin Morgant   +2 more
doaj   +3 more sources

Ecological Trait-Based Digital Categorization of Microbial Genomes for Denitrification Potential

Microorganisms
Microorganisms encode proteins that function in the transformations of useful and harmful nitrogenous compounds in the global nitrogen cycle. The major transformations in the nitrogen cycle are nitrogen fixation, nitrification, denitrification, anaerobic
Raphael D. Isokpehi, Yungkul Kim, Sarah E. Krejci, Vishwa D. Trivedi   +3 more
doaj   +1 more source

Denitrification of Permeable Sand Sediment in a Headwater River Is Mainly Influenced by Water Chemistry, Rather Than Sediment Particle Size and Heterogeneity

Microorganisms, 2021
Sediment particle size and heterogeneity play an important role in sediment denitrification through direct and indirect effects on, for example, the material exchange rate, environmental gradients, microbial biomass, and grazing pressure.
Weibo Wang, Xu Wang, Xiao Shu, Baoru Wang, Hongran Li, Quanfa Zhang   +5 more
doaj   +1 more source

Research progress on the role of sulfide in novel biological nitrogen removal processes

Gongye shui chuli
Sulfides are common electron donors in the environment and strong inhibitors of some key microorganisms in wastewater biological treatment processes.
CHEN Tao, SHEN Yaoliang
doaj   +1 more source

Hydrological controls on denitrification in riparian ecosystems [PDF]

Hydrology and Earth System Sciences, 2004
Nitrous oxide fluxes and denitrification rates were measured in situ over a year at a riparian site in the UK. An exponential relationship was found between denitrification rates and soil moisture, with a sharp increase in denitrification rate at a ...
S. E. Machefert, S. E. Machefert, N. B. Dise, N. B. Dise, N. B. Dise   +4 more
doaj  

Investigation of NO reduction mechanism of nitrogen-impregnated biomass across wide temperature range

Fuel Processing Technology
Traditional denitrification methods for coal-fired power boilers face challenges like reduced flue gas temperature at low loads, decreased efficiency of existing denitrification devices, and increased ammonia consumption.
Jing Wang, Yingying Qu, Xinyu Jiang, Frédéric Marias, Fei Wang, Yuanyuan Zhang   +5 more
doaj   +1 more source