A method (normally biological) through which ammonia is biologically oxidized to nitrite and then nitrate.
Species of bacteria involved in nitrification. Nitrosommonas sp. oxidizes NH3 to NO2- and Nitrobacter sp. oxides NO2- to NO3- .
The NO2- ion.
An odorless, gaseous element that makes up 78% of the earth’s atmosphere, and is a constituent of all living tissue. It is almost inert in its gaseous form.
Simple nitrogen compounds produced by the metabolism of proteins, such as urea and uric acid.