| D009584 |
Nitrogen |
An element with the atomic symbol N, atomic number 7, and atomic weight [14.00643; 14.00728]. Nitrogen exists as a diatomic gas and makes up about 78% of the earth's atmosphere by volume. It is a constituent of proteins and nucleic acids and found in all living cells. |
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| D010758 |
Phosphorus |
A non-metal element that has the atomic symbol P, atomic number 15, and atomic weight 31. It is an essential element that takes part in a broad variety of biochemical reactions. |
Black Phosphorus,Phosphorus-31,Red Phosphorus,White Phosphorus,Yellow Phosphorus,Phosphorus 31,Phosphorus, Black,Phosphorus, Red,Phosphorus, White,Phosphorus, Yellow |
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| D000332 |
Aerobiosis |
Life or metabolic reactions occurring in an environment containing oxygen. |
Aerobioses |
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| D001419 |
Bacteria |
One of the three domains of life (the others being Eukarya and ARCHAEA), also called Eubacteria. They are unicellular prokaryotic microorganisms which generally possess rigid cell walls, multiply by cell division, and exhibit three principal forms: round or coccal, rodlike or bacillary, and spiral or spirochetal. Bacteria can be classified by their response to OXYGEN: aerobic, anaerobic, or facultatively anaerobic; by the mode by which they obtain their energy: chemotrophy (via chemical reaction) or PHOTOTROPHY (via light reaction); for chemotrophs by their source of chemical energy: CHEMOLITHOTROPHY (from inorganic compounds) or chemoorganotrophy (from organic compounds); and by their source for CARBON; NITROGEN; etc.; HETEROTROPHY (from organic sources) or AUTOTROPHY (from CARBON DIOXIDE). They can also be classified by whether or not they stain (based on the structure of their CELL WALLS) with CRYSTAL VIOLET dye: gram-negative or gram-positive. |
Eubacteria |
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| D012722 |
Sewage |
Refuse liquid or waste matter carried off by sewers. |
Sludge,Sludge Flocs |
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| D014865 |
Waste Disposal, Fluid |
The discarding or destroying of liquid waste products or their transformation into something useful or innocuous. |
Disposal, Fluid Waste,Disposals, Fluid Waste,Fluid Waste Disposal,Fluid Waste Disposals,Waste Disposals, Fluid |
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| D014874 |
Water Pollutants, Chemical |
Chemical compounds which pollute the water of rivers, streams, lakes, the sea, reservoirs, or other bodies of water. |
Chemical Water Pollutants,Landfill Leachate,Leachate, Landfill,Pollutants, Chemical Water |
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| D054712 |
Salinity |
Degree of saltiness, which is largely the OSMOLAR CONCENTRATION of SODIUM CHLORIDE plus any other SALTS present. It is an ecological factor of considerable importance, influencing the types of organisms that live in an ENVIRONMENT. |
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| D058440 |
Denitrification |
Nitrate reduction process generally mediated by anaerobic bacteria by which nitrogen available to plants is converted to a gaseous form and lost from the soil or water column. It is a part of the nitrogen cycle. |
Denitrifications |
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| D058465 |
Nitrification |
A process facilitated by specialized bacteria involving the oxidations of ammonium to nitrite and nitrite to nitrate. |
Aerobic Ammonia Oxidation,Nitrite Oxidation,Aerobic Ammonia Oxidations,Ammonia Oxidation, Aerobic,Nitrifications,Nitrite Oxidations,Oxidation, Aerobic Ammonia,Oxidation, Nitrite |
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