Biochemical oxygen demand (BOD) |
(Environmental Engineering) The amount of oxygen required to oxidize any organic matter present in a water during a specified period of time, usually 5 days. It is an indirect measure of the amount of organic matter present in a water. |
Biogeochemical cycle |
(Environmental Engineering) The cycle of elements through the biotic and abiotic environment. |
Biosynthesis |
(Environmental Engineering) Catabolism, the production of new cellular materials from other organic or inorganic chemicals. |
Carbonaceous biochemical oxygen demand (CBOD) |
(Environmental Engineering) The amount of oxygen required to oxidize any carbon containing matter present in a water. |
Carbonyl |
(Environmental Engineering) A functional group with an oxygen atom double bonded to a carbon atom. |
Catabolism |
(Environmental Engineering) The production of energy by the degradation of organic compounds. |
Cell |
(Environmental Engineering) A unit of varying dimensions in a landfill which is isolated from the environment by 6 to 12 inches of soil cover. A cell is one day's waste or less. A cell is covered with soil at the end of each day. |
CFCs |
(Environmental Engineering) Chlorofluorocarbons, chemicals which result in a depletion of the ozone layer in the upper atmosphere. |
Chemical fixation (or stabilization/solidification) |
(Environmental Engineering) A term for several different methods of chemically immobilizing hazardous materials into a cement, plastic, or other matrix. |
Chemical oxygen demand (COD) |
(Environmental Engineering) The amount of oxygen required to oxidize any organic matter in the water using harsh chemical conditions. |