Synergism is the act of working together. |
(Environmental Engineering) Two chemicals which are synergistic have a greater effect together than the sum of their individual effects. The effect can be either positive or negative. |
System |
(Environmental Engineering) An arbitrarily defined area or volume surrounded by a boundary and possessing specific inputs, outputs, and reactions. |
Thermocline |
(Environmental Engineering) The depth at which an inflection point occurs in a lake temperature profile. |
Thiols |
(Environmental Engineering) Organic compounds which contain the "-SH" functional group. Also called mercaptans. |
Total dissolved solids |
(Environmental Engineering) (TDS) is the amount of dissolved matter in the water. |
Total solids |
(Environmental Engineering) (TS) is the amount of organic and inorganic matter which is contained in a water. |
Total suspended solids |
(Environmental Engineering) (TSS) is the amount of suspended (filterable) matter in a water. |
Toxicity |
(Environmental Engineering) A U.S. EPA hazardous waste characteristic defined with a rigorous test procedure, the TCLP (for Toxicity Characteristic Leaching Procedure). In the procedure, a waste is extracted for 24 hours with an acetic acid solution. The acid extract is then analyzed for the presence of any of the contaminants listed in the procedure. |
Trace contaminants |
(Environmental Engineering) Contamination found in trace (very low) levels. |
Trickling filter |
(Environmental Engineering) An attached growth biological process in which the microbial film is attached to non-moving rock or plastic media. |