Glossary of Water and Wastewater Terms
A B C D E F G H I J K L M N O P Q R S T U V W Y Z5 random terms from our glossary
turn-down ratio
The ratio of the design range to the range of acceptable accuracy or precision of an instrument. Also see effective range.
mesh
One of the openings or spaces in a screen or woven fabric. The value of the mesh is usually given as the number of openings per inch. This value does not consider the diameter of the wire or fabric; therefore, the mesh number does not always have a definite relationship to the size of the hole.
flow
The continuous movement of a liquid from 1 place to another.
endocrine effects (EN-doe-krin)
An altering of the organs in the human body responsible for secreting hormones into the bloodstream. Endocrine glands include the thyroid gland, the pancreas, and the adrenal glands.
polyelectrolyte (POLY-ee-LECK-tro-lite)
A high-molecular-weight substance, having points of positive or negative electrical charges, that is formed by either natural or synthetic processes. Natural polyelectrolytes may be of biological origin or obtained from starch products or cellulose derivatives. Synthetic polyelectrolytes consist of simple substances that have been made into complex, high-molecular-weight substances. Used with other chemical coagulants to aid in binding small suspended particles to larger chemical flocs for their removal from water. Also see polymer.
