Biochemical oxygen demand — or Biological Oxygen Demand (BOD) is a chemical procedure for determining how fast biological organisms use up oxygen in a body of water. It is used in water quality management and assessment, ecology and environmental science. BOD is not an… … Wikipedia
Oxidation state — Not to be confused with Oxidation number. In chemistry, the oxidation state is an indicator of the degree of oxidation of an atom in a chemical compound. The formal oxidation state is the hypothetical charge that an atom would have if all bonds… … Wikipedia
Biochemical — Relating to biochemistry, the application of the tools and concepts of chemistry to living systems. Biochemists study such things as the structures and physical properties of biological molecules, including proteins, carbohydrates, lipids, and… … Medical dictionary
Biochemical Oxygen Demand — The weight of oxygen taken up mainly as a result of the oxidation of the constituents of a sample of water by biological action; expressed as the number of parts per million of oxygen taken up by the sample from water originally saturated with… … Energy terms
Microbial arene oxidation — (MAO) refers to the process by which microbial enzymes convert aromatic compounds into more highly oxidized products. Although a number of oxidized products are possible, the most commonly employed for organic synthesis are cis 1,2 dihydroxy… … Wikipedia
Wastewater quality indicators — such as the biochemical oxygen demand (BOD) and the chemical oxygen demand (COD) are essentially laboratory tests to determine whether or not a specific wastewater will have a significant adverse effect upon fish or upon aquatic plant… … Wikipedia
Wastewater — For the lake in Northwestern England, see Wastwater. Public infrastructure … Wikipedia
Industrial wastewater treatment — covers the mechanisms and processes used to treat waters that have been contaminated in some way by anthropogenic industrial or commercial activities prior to its release into the environment or its re use.Most industries produce some wet waste… … Wikipedia
Iron — Fe redirects here. For other uses, see Fe (disambiguation). This article is about the chemical element. For other uses, see Iron (disambiguation). manganese … Wikipedia
Trickling filter — A trickling filter consists of a fixed bed of rocks, gravel, slag, polyurethane foam, sphagnum peat moss, or plastic media over which sewage or other wastewater flows downward and causes a layer or film of microbial slime to grow, covering the… … Wikipedia
Bog iron — refers to impure iron deposits that develop in bogs or swamps by the chemical or biochemical oxidation of iron carried in the solutions. In general, bog ores consist primarily of iron oxyhydroxides, commonly goethite (FeO(OH)). It was discovered… … Wikipedia