Glossary Terms

A clear vertical space between a water or drain line and the flood level of a receptacle to prevent back-flow or siphoning from the receptacle in […]

A device which allows water, but not air, to pass through it. An air check is a typical component of a water treatment system using a […]

A mass or cluster of soil particles, often having a characteristic shape.

An action or process conducted in the presence of air, such as aerobic digestion of organic matter by bacteria.

The process in which air is brought into intimate contact with water, often by spraying water through air, or by bubbling air through water. Aeration may […]

The process in which matter adheres to the surface of an adsorbent.

A material, usually solid, capable of holding gases, liquids and/or suspended matter at its surface and in exposed pores. Activated carbon and activated alumina are common […]

A material usually formed from the reaction of a dilute silicate solution with a dilute acid. It is used as a coagulant aid.

A granular material usually produced by roasting various grades of coal in the absence of air. It has a very porous structure and it is used […]