Respiration is a chemical process in which energy is released when electrons are passed from a donor molecule to an acceptor molecule. In addition to energy being released, the respiratory process results in the donor molecule being converted to an oxidized molecule, meaning it has lost electrons, and the acceptor molecule being converted to a reduced molecule, meaning it has gained electrons. Typ…
Humans are primarily interested in denitrification because this process is responsible for fixed nitrogen being removed from sewage and lost from cropland. Environmentally harmful nitrate concentrations in sewage discharge can be reduced by storing wastes under denitrifying conditions before releasing them into the environment. Although denitrification is a beneficial process in sewage treatment, …
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