An experimentally determined constant to estimate the unit growth rate of bacteria while degrading organic wastes.

An experimentally determined constant to estimate the unit growth rate of bacteria while degrading organic wastes.

The quantity of water (expressed as a rate of flow—GPM, GPH, GPD, cu m/day, ML/day, or total quantity per year) that can be collected for a given use from surface or groundwater sources. The yield may [..]

A type of ion exchange material used to soften water. Natural zeolites are siliceous compounds (made of silica) that remove calcium and magnesium from hard water and replace them with sodium. Syntheti [..]

In coagulation and flocculation procedures, the difference in the electrical charge between the dense layer of ions surrounding the particle and the charge of the bulk of the suspended fluid surroundi [..]

The comparatively dry soil or rock located between the ground surface and the top of the water table.

The soil or rock located below the top of the groundwater table. By definition, the zone of saturation is saturated with water. Also see WATER TABLE. Where raw wastewater is exfiltrating from a sewer [..]

Small, usually microscopic animals (such as protozoans), found in lakes and reservoirs.

The region or land area that contributes to the drainage or catchment area above a specific point on a stream or river.

A unit of power equal to one joule per second. The power of a current of one ampere flowing across a potential difference of one volt.