Information AboutDenitrification |
| CATEGORIES ABOUT DENITRIFICATION | |
| nitrogen metabolism | |
| metabolism | |
| SHOPPER'S DELIGHT | |
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Denitrification takes place under special conditions in both terrestrial and marine Ecosystem s. In general, it occurs when Oxygen (which is a more favourable electron acceptor) is depleted, and Bacteria turn to nitrate in order to respire Organic Matter . Because our atmosphere is rich with oxygen, denitrification only takes place in some Soil s and Groundwater , Wetlands , poorly ventilated corners of the ocean, and in seafloor sediments. Denitrification proceeds through some combination of the following steps: : Nitrate → Nitrite → Nitric Oxide → Nitrous Oxide → Dinitrogen gas Or expressed as a Redox reaction: :2NO3- + 10e- + 12H+ → N2 + 6H2O Denitrification is the second step in the nitrification-denitrification process: the conventional way to remove nitrogen from Sewage and municipal Wastewater . Direct reduction from nitrate to Ammonium (a process known as DNRA) is also possible for organisms that have the nrf- Gene . In some Wastewater Treatment Plant s, a small amount of Methanol is added to the wastewater to provide a carbon source for the denitrification bacteria. SEE ALSO |