Definition von denitrification im Englisch Englisch wörterbuch
The process by which a nitrate becomes molecular nitrogen, especially by the action of bacteria
Conversion of nitrate into nitrogen gases under anaerobic conditions, resulting in loss of nitrogen from ecosystems
nitrogen as ammonia or organic nitrogen is removed from sewage because it is an algal nutrient Ammonium ion can be removed by raising pH above 11 5 and air stripping the ammonia formed Under aerobic conditions, bacteria will convert ammonia to nitrate, which can be further reduced to nitrogen by a bacterially catalyzed reduction with an organic source of carbon such as methanol
The formation of gaseous nitrogen (N2) or nitrogen oxide (NO) from nitrate (NO3-) or nitrite (NO2-) by microorganisms
Reduction of nitrogen oxides (usually nitrate and nitrite) to molecular nitrogen or nitrogen oxides with a lower oxidation state of nitrogen by bacterial activity (denitrification) or by chemical reactions involving nitrite (chemodenitrification) Nitrogen oxides are used by bacteria as terminal electron acceptors in place of oxygen in anaerobic or microaerophilic respiratory metabolism
The process in which soil bacteria convert nitrate (and/or nitrite) to nitrogen-containing gases such as N2O and ultimately N2
The natural chemical conversion of dissolved nitrite nitrogen to nitrate and finally to gaseous nitrogen, removing it from the aquatic system
The biochemical conversion of nitrate and nitrite; nitrogen in the soil dissolved in water to gaseous nitrogen
Reduction of nitrate or nitrite to molecular nitrogen or nitrogen oxides by microbial activity (dissimilatory nitrate reduction) or by chemical reactions involving nitrite (chemical denitrification)
The process by which nitrate is converted into nitrogen gas and released into the atmosphere In the aquarium, denitrification is performed by anaerobic bacteria
the return of nitrogen from decomposed matter to the atmosphere by bacteria that change nitrates to nitrogen gas
The anoxic biological conversion of nitrate to nitrogen gas It occurs naturally in surface waters low in oxygen, and it can be engineered in wastewater treatment systems
A process by which oxidized forms of nitrogen such as nitrate (NO3-) are reduced to form nitrites, nitrogen oxides, ammonia, or free nitrogen: commonly brought about by the action of denitrifying bacteria and usually resulting in the escape of nitrogen to the air
The change of nitrogenous compunds by certain bacteria in which free nitrogen is formed; can be from soil or water The process reduces desirable fertility of an agricultural field or the extent of undesirable aquatic weed production in aquatic environments Also see Denitrifying Bacteria ADVANCE \x 540
The biochemical conversion of dissolved nitrate and nitrite nitrogen in soil or water to nitrogen gas
The act or process of freeing from nitrogen; also, the condition resulting from the removal of nitrogen
Process of removing nitrogen and it's compounds Loss of nitrogen, usually refers to the conversion of nitrate to nitrogen gas under anaerobic conditions
the return of nitrogen from decomposed matter to the atmosphere by bacteria that change nitrates to nitrogen gas (19 2)