Results 21 to 30 of about 20,251 (159)

Performance of Aerobic Denitrification by the Strain Pseudomonas balearica RAD-17 in the Presence of Antibiotics

open access: yesMicroorganisms, 2021
Aerobic denitrification, one of the important nitrate metabolic pathways in biological denitrification, has been attracting increasing interest recently due to its functional advantages.
Yunjie Ruan   +5 more
doaj   +1 more source

Effect of current on biofilm-electrode reactor coupled with sulfur autotrophic denitrification process (BER-SAD) for nitrate removal from wastewater [PDF]

open access: yesE3S Web of Conferences, 2021
The biofilm-electrode reactor coupled with sulfur autotrophic denitrification process (BER-SAD) was used to remove nitrate in groundwater, and the effect of current intensity on the denitrification characteristics of the coupled process was explored ...
Liu Hengyuan, Zhang Chenhe
doaj   +1 more source

Denitrification in urban river sediment and the contribution to total nitrogen reduction

open access: yesEcological Indicators, 2021
Streams and rivers, especially in urban areas, are substantial sinks of bioavailable nitrogen owing to their hydrological connections with terrestrial systems and the intensity of inputs mediated by human activities.
Dong Yang   +9 more
doaj   +1 more source

Experimental study on sodium persulfate denitrification based on hydrodynamic cavitation

open access: yesZhongguo Jianchuan Yanjiu, 2021
Objectives In order to improve the efficiency of sodium persulfate (Na2S2O8) wet oxidation denitrification and its utilization rate, wet oxidation denitrification experiments using hydrodynamic cavitation to enhance Na2S2O8 are carried out.
Bohao ZHANG   +5 more
doaj   +1 more source

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

open access: yesPLoS 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   +3 more
doaj   +1 more source

Denitrification in Seepage-Irrigated Vegetable Fields in South Florida

open access: yesEDIS, 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   +2 more
doaj   +3 more sources

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

open access: yesMicroorganisms
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   +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

open access: yesMicroorganisms, 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   +5 more
doaj   +1 more source

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

open access: yesGongye 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]

open access: yesHydrology 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   +4 more
doaj  

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