Glossary Terms

May 3, 2017

threshold

The lowest dose of a chemical at which a specified measurable effect is observed and below which it is not observed.
May 3, 2017

temporary hardness

Water hardness due to the presence of calcium and magnesium carbonates and bicarbonates, which can be precipitated by heating the water. Now largely replaced by the […]
May 3, 2017

TDS Creep

The appearance of salt in RO product water which sometimes occurs as a result of the reduction of differential pressure across the membrane as can occur […]
May 3, 2017

TDS

See Total dissolved solids.
May 3, 2017

TCE

See Trichloroethylene.
May 3, 2017

tannins

Any of a group of water soluble, natural organic phenolic compounds that are produced by metabolism in trees and plants, and are part of the degradation […]
May 3, 2017

synthetic detergent

A synthetic cleaning agent, such as linear alkyl sulfonate and alkyl benzene sulfonate. Synthetic detergents react with water hardness, but the products are soluble.
May 3, 2017

syndet

A contraction of the term “synthetic detergent”.
May 3, 2017

swelling

In the water treatment context, the expansion of certain ion exchange resins when converted into specific ionic state.