denitrification

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de·ni·tri·fi·ca·tion

(dē-nī'tri-fi-kā'shŭn),
1. Removal of nitrogen from any material or chemical compound; especially from the soil, as by certain (denitrifying) bacteria that render the nitrogen unavailable for plant growth.
2. Withdrawal of nitrogen from soil by plant growth.
Synonym(s): denitration

denitrification

the process by which nitrogenous compounds are degraded and nitrogen is returned to the air in gaseous form, e.g. the breaking down of nitrates and nitrites to gaseous nitrogen, carried out in the absence of oxygen by soil bacteria. The process is associated with waterlogged soils and low fertility. See NITROGEN CYCLE.
References in periodicals archive ?
Denitration of glycerol trinitrate by resting cells and cell extracts of Bacillus thuringiensis/cereus and Enterobacter agglomerans.
The stringent emission standards and the new policy on subsidies will encourage coal-fired power companies to adopt the denitration technology and also conduct an inspection on the existing denitration technology and relevant enterprises to phase out backward denitration technologies and enterprises below the denitration standards.
According to the estimate, after the implementation of the new standard for airborne pollutant emission, the denitration capacity for coal-fired exhausts will reach 0.
The benchmark denitration tariff policies and more stringent emission standards opened up hundreds of billions Renminbi market for the denitration sector.
The main technologies of Chinas denitration industry is introduced from abroad, such as America s B&W, Germanys Lurgi and FBE, Japans Mitsubishi and Hitachi, Italy's TKC, etc.
Based on the requirements of installing denitration devices for thermal power units issued by the Ministry of Environmental Protection of PRC, the report investigates the market capacity of thermal power denitration and SCR denitration catalyst, and analyzes the supply situation and major enterprises.
8/kw to coal fired power plants equipped with denitration devices that are under operation, to make up for the costof denitration and incentivize the installation of denitration devices in coal fired power plants.
It is estimated that with the implementation of the new Standards, the installed capacity of flue gas denitration (FGD) devices will reach more than 900GW by 2015, requiring hundreds of billions of investment and huge operating costs.
Ltd (CSCEC Electric Power) has won Ultra-low Emission Renovation EPC Project and Denitration Renovation EPC Project of No.
In addition, since fiscal 2010 the companies have also been involved in developing technology for a denitration system that will work with low-temperature exhaust gases of low-speed marine diesel engines, including shipboard tests, with technical cooperation from the National Marine Research Institute.
Contract notice: Supply and installation of denitration and modernization of the boiler flue gas desulphurization k2 siekierki in warsaw.
Also, the modern denitration and desulphurization systems succeeded in a major reduction of NOx, SOx and Particulate Matters.