| 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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| D010084 |
Oxidation-Reduction |
A chemical reaction in which an electron is transferred from one molecule to another. The electron-donating molecule is the reducing agent or reductant; the electron-accepting molecule is the oxidizing agent or oxidant. Reducing and oxidizing agents function as conjugate reductant-oxidant pairs or redox pairs (Lehninger, Principles of Biochemistry, 1982, p471). |
Redox,Oxidation Reduction |
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| D000076502 |
Sustainable Development |
A process of change in which the exploitation of resources, the direction of investments, the orientation of technological development; and institutional change are all in harmony and enhance both current and future potential to meet human needs and aspirations. (http://www.un-documents.net/ocf-02.htm#I) |
Sustainable Development Goals,Smart Growth,Development Goal, Sustainable,Development Goals, Sustainable,Development, Sustainable,Developments, Sustainable,Sustainable Development Goal |
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| D012722 |
Sewage |
Refuse liquid or waste matter carried off by sewers. |
Sludge,Sludge Flocs |
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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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| D062065 |
Wastewater |
Contaminated water generated as a waste product of human activity. |
Waste Water,Waste Waters,Wastewaters,Water, Waste,Waters, Waste |
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| D018508 |
Water Purification |
Any of several processes in which undesirable impurities in water are removed or neutralized; for example, chlorination, filtration, primary treatment, ion exchange, and distillation. It includes treatment of WASTEWATER to provide potable and hygienic water in a controlled or closed environment as well as provision of public drinking water supplies. |
Waste Water Purification,Waste Water Treatment,Wastewater Purification,Wastewater Treatment,Water Treatment,Purification, Waste Water,Purification, Wastewater,Purification, Water,Treatment, Waste Water,Treatment, Wastewater,Treatment, Water,Waste Water Purifications,Waste Water Treatments,Water Purification, Waste |
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| D019149 |
Bioreactors |
Tools or devices for generating products using the synthetic or chemical conversion capacity of a biological system. They can be classical fermentors, cell culture perfusion systems, or enzyme bioreactors. For production of proteins or enzymes, recombinant microorganisms such as bacteria, mammalian cells, or insect or plant cells are usually chosen. |
Fermentors,Bioreactor,Fermentor |
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