[Welcome Page]
Tell a friend about the Tech Tree!

Home Pages


The follow definitions are used in the description of the cleanup technologies

Skip to Words:
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z


vadose zoneThe area between the surface of the land and the aquifer water table in which the moisture content is less than the saturation point and the pressure is less than atmospheric.
vaporThe gaseous phase of any substance that is liquid or solid at atmospheric temperature and pressures. Steam is an example of a vapor.
viscosityThe quality of having a heavy, gluey, resistance to flow.
volatile organic compounds (VOCs)One of a group of carbon-containing compounds that evaporate readily at room temperature. Examples of VOCs include trichloroethane, trichloroethylene, benzene, toluene, ethylbenzene, and xylene (BTEX).
volatileEvaporating readily at normal pressures and temperatures.
volatilizationThe process of transfer of a chemical from the aqueous or liquid phase to the gas phase.

Note: A majority of the terms and definitions are based on the U.S. Environmental Protection Agency's Brownfields Innovative Technology Glossary . Some definitions have been modified/enhanced to support the Tech Tree text.

Skip to Words:
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

This page was last updated OCTOBER 26, 1998
Please E-mail comments/questions about the Tech Tree to: