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Reduction of nitrate as a form of anaerobic respiration
Denitrification is a microbially facilitated process where nitrate (NO−3) is reduced and ultimately produces molecular nitrogen (N2) through a series
Denitrification
Bacteria using nitrate and nitrite as a terminal electron acceptor
fungi and archaea, is capable of performing denitrification as part of the nitrogen cycle. Denitrification is performed by a variety of denitrifying bacteria
Denitrifying_bacteria
Simultaneous nitrification–denitrification (SNdN) is a wastewater treatment process. Microbial simultaneous nitrification-denitrification is the conversion of
Simultaneous nitrification–denitrification
Simultaneous_nitrification–denitrification
Biogeochemical cycle by which nitrogen is converted into various chemical forms
nitrogen cycle include fixation, ammonification, nitrification, and denitrification. The majority of Earth's atmosphere (78%) is atmospheric nitrogen,
Nitrogen_cycle
Co-respiration using both oxygen and nitrate as electron acceptor
Aerobic denitrification, or co-respiration, the simultaneous use of both oxygen (O2) and nitrate (NO−3) as oxidizing agents, performed by various genera
Aerobic_denitrification
Animal that feeds on decomposing plant and animal parts as well as faeces
Detritivores (also known as detrivores, detritophages, detritus feeders or detritus eaters) are heterotrophs that obtain nutrients by consuming detritus
Detritivore
Class of enzymes
(N2O-forming) is an enzyme that catalyzes the final step in bacterial denitrification, the reduction of nitrous oxide to dinitrogen. N2O + 2 reduced cytochome
Nitrous-oxide_reductase
Wastewater treatment process using aeration and a biological floc
compartment inside the aeration tank in order to perform the nitrification-denitrification process more efficiently. First, ammonia is oxidized to nitrite, which
Activated_sludge
Anaerobic respiration process by microbes
a component of the terrestrial and oceanic nitrogen cycle. Unlike denitrification, it acts to conserve bioavailable nitrogen in the system, producing
Dissimilatory nitrate reduction to ammonium
Dissimilatory_nitrate_reduction_to_ammonium
agricultural byproducts. Development of a submerged microbial desalination-denitrification cell (SMDDC) to remove nitrogen and saline from subsurface water alleviates
Microbial_desalination_cell
Dam constructed by beavers
Studies have shown that beaver dams along a stream contribute to denitrification (the conversion of nitrogen compounds back into nitrogen). Bacteria
Beaver_dam
Respiration using electron acceptors other than oxygen
dissimilatory denitrification, which is the main route by which fixed nitrogen is returned to the atmosphere as molecular nitrogen gas. The denitrification process
Anaerobic_respiration
American agricultural engineer
career Institutions Tuskegee University (1987–) Thesis Leaching and Denitrification Losses of Nitrogen-15 Labeled Fertilizer Nitrogen in Two Illinois Soils
Walter_A._Hill
Other forms of dominant metabolism include fermentation, anammox, denitrification, sulfate reductive metabolism, as well as chemolithotrophic pathways
Hadal zone microbial communities
Hadal_zone_microbial_communities
reduce nitrate (NO3−) to nitrogen gas (N2) through the process of denitrification, see Figure 1. Two important intermediates of the reduction pathway
Nitric-oxide_reductase
Colourless non-flammable greenhouse gas
heterotrophic nitrification aerobic denitrification by the same heterotrophic nitrifiers fungal denitrification non-biological chemodenitrification These
Nitrous_oxide
Small pieces of wood made when shredding larger pieces of wood with a woodchipper
gardening, landscaping, and ecosystem restoration; in bioreactors for denitrification; and as a substrate for mushroom cultivation. The process of making
Woodchips
Vegetable
is nitrite, which leads to a risk of nitrosamine formation during denitrification by Pd. Adding ascorbic acid prevents nitrosamine formation in this
Beetroot
Process of removing contaminants from municipal wastewater
oxidation of nitrogen from ammonia to nitrate (nitrification), followed by denitrification, the reduction of nitrate to nitrogen gas. Nitrogen gas is released
Sewage_treatment
Species of bacterium
final product of N2, demonstrating its good abilities for aerobic denitrification and heterotrophic nitrification. Bouvet, P. J. M.; Grimont, P. A. D
Acinetobacter_haemolyticus
Artificial wetland to treat wastewater, greywater or stormwater runoff
decomposition of organic matter. Microbial nitrification and subsequent denitrification releases nitrogen as gas to the atmosphere. Phosphorus is coprecipitated
Constructed_wetland
Nutrient within the soil
happens in tropical areas. Denitrification may vary throughout a soil as the aeration varies from place to place. Denitrification may cause the loss of 25 percent
Plant_nutrients_in_soil
nitrifying ammonia oxidising bacteria (AOB) (such as Nitrosomonas). Denitrification of waste streams utilizing SHARON reactors can proceed with an anoxic
SHARON_Wastewater_Treatment
Chemical element with atomic number 7 (N)
Biologically mediated reactions (e.g., assimilation, nitrification, and denitrification) strongly control nitrogen dynamics in the soil. These reactions typically
Nitrogen
Grass damage by cattle urine
concentrations of the greenhouse gas nitrous oxide through nitrification and denitrification processes in urine-contaminated soils. Over the past few decades, the
Cattle_urine_patches
Polyatomic ion (NO3, charge –1) found in explosives and fertilisers
although its use for energy storage and denitrification remains underdeveloped. During the biological denitrification process, further nitrite reduction also
Nitrate
Phylum of bacteria
oxygen in such zones leads to preference of anaerobic processes such as denitrification and nitrogen loss through anammox. Nitrospina thus outweigh nitrogen
Nitrospinota
Biochemical pathways used by microbes to satisfy energy needs
nitrate completely. Complete denitrification is an environmentally significant process because some intermediates of denitrification (nitric oxide and nitrous
Microbial_metabolism
Species of bacterium
Pseudomonas denitrificans is a Gram-negative aerobic bacterium that performs denitrification. It was first isolated from garden soil in Vienna, Austria. It overproduces
Pseudomonas_denitrificans
Study of living things in soil
the atmosphere into organic compounds, a series of processes called denitrification returns some amount of nitrogen to the atmosphere. Denitrifying bacteria
Soil_biology
Community of microbial organisms
microbial community compositions within the simultaneous nitrification, denitrification and phosphorus removal system. Aerobic granulation has the ability
Aerobic_granular_reactor
the nitrogen cycle, including nitrogen fixation, nitrification and denitrification through a combination of soil, weather, crop and field management modeling
Adapt-N
Protected extension to a fish tank that shares the same water supply
tank volume. A refugium may be used for one or more purposes such as denitrification, nutrient export, plankton production, circulation, surface agitation
Refugium_(fishkeeping)
Simplest carboxylic acid (HCOOH)
the main component for the decomposition of residual nitric acid in denitrification during spent nuclear fuel reprocessing . The process can be carried
Formic_acid
Genus of bacteria
increase the bioavailability of nitrogen to plants and play a role in denitrification, a process important for the release of nitrous oxide, a powerful greenhouse
Nitrosomonas
Domain of microorganisms
types listed above, leads to the ecologically important processes of denitrification, sulfate reduction, and acetogenesis, respectively. Bacterial metabolic
Bacteria
Mass extinction event c. 444 million years ago
nitrates. Nitrogen isotopes during the anoxic event record-high rates of denitrification, a biological process which depletes nitrates. The Nitrogen-fixing
Late Ordovician mass extinction
Late_Ordovician_mass_extinction
Species of bacterium
from the genus of Nitratireductor which was isolated from a marine denitrification system in Canada. LSPN lpsn.dsmz.de "Straininfo of Nitratireductor
Nitratireductor_aquibiodomus
Species of bacterium
sludge, has been identified as a heterotrophic nitrification–aerobic denitrification (HNAD) bacterium. HNAD is a process in which nitrogen and organic carbon
Alcaligenes_aquatilis
Community of living organisms together with the nonliving components of their environment
nitrates and nitrites are converted to nitrogen gas, a process known as denitrification. Mycorrhizal fungi which are symbiotic with plant roots, use carbohydrates
Ecosystem
the addition of an anoxic zone where nitrate is present due to the denitrification capabilities of some PAO. Generally speaking, all bacteria contain
Enhanced biological phosphorus removal
Enhanced_biological_phosphorus_removal
Species of bacterium
degradation. Further research has explored the biofilm-forming and denitrification capabilities of Pseudomonas species, including P. fluorescens, in eutrophic
Pseudomonas_fluorescens
Type of wetland fed by mineral-rich ground or surface water
nitrate consumption in the reduced layer by denitrification drives downward diffusion of nitrate. Denitrification in the reduced layer produces nitrogen gas
Fen
Reworking of soils and sediments by organisms
While both nitrification and denitrification are enhanced by bioturbation, the effects of bioturbators on denitrification rates have been found to be greater
Bioturbation
Chemolithotrophic organisms
in one step, suggesting that this reaction does occur. Root nodule Denitrification Denitrifying bacteria f-ratio Nitrification Nitrogen cycle Nitrogen
Nitrifying_bacteria
Composite construction material with elemental sulfur as a binder
sulfur directly as an electron donor to reduce nitrate (autotrophic denitrification process), or sulfate, present in wastewater. Studies and real life
Sulfur_concrete
Set of chemical reactions in organisms
global biogeochemical cycles such as acetogenesis, nitrification and denitrification and are critical for soil fertility. The energy in sunlight is captured
Metabolism
Chemical compound
Beihai (2022). "Application of external carbon source in heterotrophic denitrification of domestic sewage: A review". Science of the Total Environment. 817
Sodium_acetate
Protein family
band centered at 308 nm. Azurins and pseudoazurins participate in the denitrification processes in bacteria., including the gram-negative bacteria Pseudomonas
Azurin
Term for nitric oxide and nitrogen dioxide
transforms ammonia into nitrate. Denitrification is basically the reverse process of nitrification. During denitrification, nitrate is reduced to nitrite
NOx
Indian marine scientist
Quantifying denitrification using a variety of innovative techniques, Naqvi showed that the Arabian Sea is the world's largest oceanic denitrification site,
Syed_Wajih_Ahmad_Naqvi
Interface between land and a river or stream
ecosystems and human health. Particularly, the attenuation of nitrate or denitrification of the nitrates from fertilizer in this buffer zone is important. The
Riparian_zone
Sporting arena in Montreal, Quebec
aquibiodomus gen. nov., sp. nov., a novel α-proteobacterium from the marine denitrification system of the Montreal Biodome (Canada)". International Journal of
Montreal_Biodome
Relatively small body of standing water
not added to our atmosphere. This process is also used with regular denitrification in anoxic layer of ponds. However, not all ponds have the ability to
Pond
Organism that ingests organic carbon for nutrition
ammonification, the conversion of organic nitrogen to ammonia, and denitrification, the reduction of nitrate and the release of nitrogen gas to the atmosphere
Heterotroph
nitrogen is eventually converted back into molecular nitrogen via denitrification, an excess of reactive nitrogen can lead to problems such as eutrophication
Reactive_nitrogen
Cave in Constanța County, Romania
genera: (1) Air-bell II surface (floating) biofilm: Aquimonas – promotes denitrification, keystone genus to determine biofilm stability Methylophilaceae – methanol
Movile_Cave
Saturation of soil with water
and the subsurface reducing atmosphere leads to such processes as denitrification, methanogenesis, and the reduction of iron and manganese oxides. All
Waterlogging_(agriculture)
Bio-geochemical process
induce the calcium carbonate precipitation, including urea hydrolysis, denitrification, sulfate production, and iron reduction. Two different pathways, or
Microbiologically induced calcite precipitation
Microbiologically_induced_calcite_precipitation
Anaerobic ammonium oxidation, a microbial process of the nitrogen cycle
return into the atmosphere as a nitrogen gas (N2). Scientists thought denitrification was the only method in which this could occur. However, now we are
Anammox
Management and control of wildlife populations
Techniques can include reforestation, pest control, nitrification and denitrification, irrigation, coppicing and hedge laying. Gamekeeping is the management
Wildlife_management
Genus of protists
gromiids have also been shown to be important for carbon cycling and denitrification. Gromia were first described in the 1835, with G. oviformis gaining
Gromia
Physico-chemical changes in sediments occurring after their deposition
various processes of mineralization in this phase are nitrification and denitrification, manganese oxide reduction, iron hydroxide reduction, sulfate reduction
Diagenesis
Species of bacterium
of Gammaproteobacteria, characterized for its capacity to perform denitrification within its ciliate host in anaerobic water environments. It was isolated
Azoamicus
Class of bacteria
and can be used industrially to remove nitrate from wastewater by denitrification. A number of Betaproteobacteria are diazotrophs, meaning that they
Betaproteobacteria
Species of crustacean
mandible, are covered with a variety of setae designed for sediment denitrification. Its pereiopods are highly specialized for the digging activity of
Callianassa_subterranea
Productive wetlands that occur in coastal intertidal zones
well as favours its loss by stimulating coupled nitrification and denitrification. Mangrove sediments are highly bioturbated by decapods such as crabs
Mangrove_forest
Plant that has adapted to living in an aquatic environment
(2015). "Relative importance of plant uptake and plant associated denitrification for removal of nitrogen from mine drainage in sub-arctic wetlands"
Aquatic_plant
Species of perennial legume
metabolites and siderophores that combat plant pathogens and supports the denitrification process Trichoderma harzianum promotes soil health by production of
Pigeon_pea
Mid-slope, silled, mini-basin in the northern Gulf of Mexico
the ammonium with seawater. At a depth of 2,200 metres (7,200 ft), denitrification is heavily limited due to the absence of nitrate. With the absence
Orca_Basin
Species of bacterium
study of poorly characterized sulfur compound transformations. The denitrification properties of Paracoccus denitrificans are an important cause for the
Paracoccus_denitrificans
Site for the disposal of waste materials
environment present in landfills does not allow for coupled nitrification-denitrification, the typical nitrogen removal pathway in soils, which can lead to an
Landfill
Species of bacterium
[citation needed] B. japonicum possess the nosRZDFYLX gene, which aides in denitrification and has two catalytic subunits - Cu-a and Cu-z (with several histidine
Bradyrhizobium_japonicum
Class of molluscs
thereby returning nutrients back to land; or (ii) through increased denitrification in proximity to dense bivalve aggregations, leading to loss of nitrogen
Bivalvia
Chemical reaction with oxidation state changes
Cu The reduction of nitrate to nitrogen in the presence of an acid (denitrification): 2 NO−3 + 10 e− + 12 H+ → N2 + 6 H2O The combustion of hydrocarbons
Redox
Scientific technique
molecule has been used to determine its sources (nitrification or denitrification). When nitrogen substrates are artificially enriched (labeled) with
Nitrogen-15_tracing
Low oxygen conditions or levels
Algal blooms Anoxic event Dead zone (ecology) Cyanobacterial bloom Denitrification Eutrophication Hypoxia in fish Oxygen minimum zone Breitburg, Denise;
Hypoxia_(environmental)
Chemical transfer pathway between Earth's biological and non-biological parts
other organisms, and nitrogen is returned to the atmosphere through denitrification and other processes. In the water cycle, the universal solvent water
Biogeochemical_cycle
Main anion present in sea water
of microbial species at relatively low concentrations, hinder the denitrification process, a microbial process essential to nitrate removal and the conservation
Chloride
Geologic eon, 4031–2500 million years ago
greenhouse gases than later in the Earth's history. Extensive abiotic denitrification took place on the Archean Earth, pumping the greenhouse gas nitrous
Archean
Accumulation of nutrients in water
through shellfish harvest, buried in the sediments, or lost through denitrification. Foundational work toward the idea of improving marine water quality
Eutrophication
Metallic iron
Kyung-Yub; Khim, Jeehyeong (October 2000). "Kinetics of reductive denitrification by nanoscale zero-valent iron". Chemosphere. 41 (8): 1307–1311. Bibcode:2000Chmsp
Zerovalent_iron
Alternative respiratory strategies in hypoxic waters
from denitrification and anammox as dinitrogen gas (N2), a compound only accessible to nitrogen-fixing bacteria. N2 production from denitrification and
Microbiology of oxygen minimum zones
Microbiology_of_oxygen_minimum_zones
Farming of aquatic organisms
S.; Mozes, N.; Lahav, O. (2006). "Development of a single-sludge denitrification method for nitrate removal from RAS effluents: Lab-scale results vs
Aquaculture
Molecule to signal group actions in cells
byproducts. PQS has also been discovered to play a role in mediating denitrification, iron acquisition and cytotoxicity for the cell. Wilder, Cara N.; Diggle
Pseudomonas_quinolone_signal
Ability of a soil to sustain agricultural plant growth
nitrogen fixation is performed by free-living and symbiotic bacteria. Denitrification occurs generally under anaerobic conditions (e.g. flooding, waterlogging
Soil_fertility
Atmospheric phenomenon
these "reservoir" compounds into reactive free radicals (Cl and ClO). Denitrification is the process by which the clouds remove NO 2 from the stratosphere
Ozone_depletion
Biochemical process in marine environments
cycling. Research indicates an imbalance between nitrogen fixation and denitrification rates, impacting nitrogen availability in different oceanic regions
Marine_nitrogen_fixation
Management of nutrients in agriculture
leaching; surface runoff; soil erosion; ammonia volatilization; and denitrification. Nitrogen management aims to maximize the efficiency with which crops
Nutrient_management
Areas of seawater, freshwater, or groundwater that are depleted of dissolved oxygen
to the second-best electron acceptor, which in seawater is nitrate. Denitrification occurs, and the nitrate will be consumed relatively rapidly. After
Anoxic_waters
Earth, a natural material
thereby depleting the soil of nitrogen, a detrimental process called denitrification. Aerated soil is also a net sink of methane (CH4) but a net producer
Soil
Potential method of reducing climate change
being able to couple the direct anaerobic oxidation of methane to denitrification of nitrate (NO3-). Biologically based methane-to-methane conversions
Atmospheric_methane_removal
Biological oxidation of ammonia/ammonium to nitrate
wastewater. The conventional removal is nitrification, followed by denitrification. The cost of this process resides mainly in aeration (bringing oxygen
Nitrification
Tool or farm implement
commercial fertilisers alongside oxygen, reducing nitrogen losses by denitrification, accelerating mineralisation, and raising short-term nitrogen availability
Plough
Species of bacteria
complete denitrification pathway. Unlike many other microbial denitrifiers, which require completely anaerobic conditions for denitrification to occur
Paracoccus_pantotrophus
Bacteria deriving energy from dissolved iron
(∆G°=-103.5 kJ/mol) The microbial oxidation of ferrous iron coupled to denitrification (with nitrite or dinitrogen gas being the final product) can be autotrophic
Iron-oxidizing_bacteria
Large body of salt water
fixation of nitrogen, its assimilation, nitrification, anammox and denitrification. Some of these processes take place in deep water so that where there
Sea
Raising fish commercially in enclosures
aquaponics, such as the incorporation of hydroponically grown plants and denitrification. Both methods reduce the amount of nitrate in the water, and can potentially
Fish_farming
Provincial public university in Wuhan, Hubei, China
Wastewater Second Prize of National Technological Invention Award Complete Denitrification and Refining Technology for Lubricant Base Oil and Its Application
Wuhan_Textile_University
Marine environmental scientist (born 1982)
; Mayer, Paul M.; Kaushal, Sujay S.; Newcomer, Tamara A. (2011). "Denitrification in Alluvial Wetlands in an Urban Landscape". Journal of Environmental
Melanie_Harrison_Okoro
DENITRIFICATION
DENITRIFICATION
DENITRIFICATION
DENITRIFICATION
Boy/Male
Arabic, Muslim
Brilliant of the Age
Girl/Female
Tamil
Leader, Chief, Princess, Flower
Surname or Lastname
English (of Norman origin)
English (of Norman origin) : variant of Chappell.
Boy/Male
Muslim
Guidance of Allah
Boy/Male
British, English
Close to Beech Trees; Diminutive of Beacher
Girl/Female
Arabic, Muslim
Beautiful; Prior
Girl/Female
Hindu, Indian, Marathi, Tamil, Telugu
Everything Possible to her; Goddess Durga
Girl/Female
Indian, Sanskrit
Quite; Silent
Boy/Male
Hindu
Boy/Male
Indian, Sanskrit
The Dark
DENITRIFICATION
DENITRIFICATION
DENITRIFICATION
DENITRIFICATION
DENITRIFICATION
n.
The act or process of freeing from nitrogen; also, the condition resulting from the removal of nitrogen.