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...A process for killing pathogenic organisms by applying heat for a speci.c period of time. * PE (1) Professional engineer. (2) See “population equivalent (PE).”

...air sampling, the average air concentration of contaminants during a given period. * ton container A 1-ton chlorine storage container.

* cadmium (Cd) A heavy metal element that accumulates in the environment. * calandria The heating element in an evaporator consisting of vertical tubes which act as the heating surf

{| class="wikitable" border="1" * conservative element

...he annual amount of water that can be taken from a source or supply over a period of years without depleting that source beyond its ability to be replenished * salinity (1) The concentration of dissolved salts in water. (2) The total dissolved sol

{| class="wikitable" border="1" * radioactive element

{| class="wikitable" border="1" * see: pile period

* mean .ow The arithmetic average .ow at a given point for a speci.ed period of time. ...ystem by Krofta Engineering Corp. megaliter (ML) A unit of volume equal to 1 million liter. Megatron™ Ultraviolet water puri.cation system by Atlantic