Hypolimnion |
(Environmental Engineering) The lower layer of a lake. |
In situ treatment |
(Environmental Engineering) Treatment of a waste in place, as opposed to pumping or digging the waste up and then treating it. |
Infectious disease |
(Environmental Engineering) A disease caused by pathogenic organisms. |
Influent |
(Environmental Engineering) The fluid entering a system, process, tank, etc. An effluent from one process can be an influent to another process. See effluent. |
Ion exchange |
(Environmental Engineering) An adsorption process in which one ion is exchanged for another ion of like charge. There is an equivalence of exchanged charge. |
Irreversible reaction |
(Environmental Engineering) A reaction in which the reactant(s) proceed to product(s), but the products react at an appreciable rate to reform reactant(s). |
Isomers |
(Environmental Engineering) Two or more different compounds with the same chemical formula but different structure and characteristics. |
Kerogen |
(Environmental Engineering) A fossilized organic material present in oil shale and some other sedimentary rocks. |
Landfill |
(Environmental Engineering) A legal and controlled area for the placement of wastes into the ground. |
Landfilling |
(Environmental Engineering) The placement of wastes into the land under controlled conditions to minimize their migration or effect on the surrounding environment. |