Glossary D

The Environmental Glossary. Letter D +++ Popular Articles: 'Development', 'Disease', 'Durability'

A Diffused Air is a type of Aeration that forces oxygen into sewage by pumping air through perforated pipes inside a holding tank.

A Diffusers And Grilles is Components of the ventilation system that distribute and return air to promote air circulation in the occupied space.

A Diffusion is the movement of suspended or dissolved particles (or molecules) from a more concentrated to a less concentrated area.

A Digester is In wastewater treatment, a closed tank; in solid-waste conversion, a unit in which bacterial action is induced and accelerated in order to break down organic Matter and

A Digestion is the biochemical Decomposition of organic matter, resulting in partial gasification, liquefaction, and mineralization of pollutants.

- Digital line graph: A digital line graph (DLG) is Digital data produced by the U.S.

A dike or levee (also embankment, floodbank or stopbank) is a ridge, fill or wall that serves to regulate the water level of a nearby body of water for various purposes, primarily to prevent flooding. They may be naturally-occurring or artificially constructed.

Dilating does not have a direct translation in environmental terminology, but in the context of environmental science, it could be interpreted metaphorically to describe processes that expand or increase in scope. This interpretation can apply to phenomena such as the expansion of urban areas, the widening of river channels, or the broadening of environmental impacts due to human activities.

A Diluent is any liquid or solid material used to dilute or carry an active ingredient.

A Dilution Ratio is the relationship between the volume of water in a stream and the volume of incoming water. It affects the ability of the stream to assimilate waste.