Glossary Terms

May 3, 2017

diatomite

Another name for diatomaceous earth.
May 3, 2017

diatomaceous earth

A fine, siliceous (made of silica) “earth” composed mainly of the skeletal remains of diatoms, a type of free-floating, microscopic plant found in the ocean. Diatomaceous […]
May 3, 2017

diaphragm pump

A positive-displacement pump in which the reciprocating piston is separated from the solution by a flexible diaphragm, thus protecting the piston from corrosion and erosion, and […]
May 3, 2017

dialysis

The separation of components of a solution by diffusion through a semi-permeable membrane which is capable of passing certain ions or molecules while rejecting others. (See […]
May 3, 2017

D.I. or DI

Abbreviation for “deionization”.
May 3, 2017

detergent

Any material with cleansing powers, including soaps, synthetic detergents, many alkaline materials and solvents, and abrasives. In popular usage the term is often used to mean […]
May 3, 2017

depth filtration

A filtration process in which water flows through progressively smaller pore spaces in a filter media bed.
May 3, 2017

density

The mass of a substance per specified unit of volume; for example, pounds per cubic foot. True density is the mass per unit volume excluding pores; […]
May 3, 2017

demineralization

The removal of ionized minerals and salts from a solution by a two-phase ion exchange procedure, similar to deionization, and the two terms are often used […]