Glossary Terms

The removal of all ionized minerals and salts from a solution by a two-phase ion exchange process. First, positively charged ions are removed by a cation […]

The deliberate removal of chlorine residual.

A series of events or steps which ultimately lead back to the starting point, such as the exhaustion-regeneration cycle of an ion exchange system.

The volume of a cube whose sides have the length of one foot. The common basis for the measurement of the volume of ion exchangers or […]

A cubic foot of ion exchanger or filter medium.

A common intestinal parasite found in waters contaminated by sewerage or runoff containing animal waste. It causes diarrhea, nausea, and cramps. Individuals with weakened immune systems […]

The area of a plane at a right angle to the direction of flow through a tank or vessel; often expressed in square feet, and related […]

A direct link between a potable water system and a non-potable water system, which permits undesirable substances to be drawn into the potable water.

One of several types of bacteria which utilize iron in their metabolism and are capable of depositing gelatinous ferric hydroxide. (See iron bacteria.)