Chemical oxygen demand. The amount of oxygen consumed in complete chemical oxidation of matter present in waste water; indicates the content of slowly degradable organic matter present
An indirect measure of the biochemical load exerted on the oxygen of a body of water when organic wastes are introduced into the water. If wastes are readily biodegradable, COD and BOD are nearly the same.
Chemical Oxygen Demand. The amount of oxygen required for total oxidation of organic and oxidizable inorganic compounds in water.
Chemical Oxygen Demand. COD is used as a measure of the oxygen equivalent of the organic matter content of the sample. Only the organic matter that is susceptible to oxidation by strong chemical oxidant. COD is typically used when there are industrial wastewater sources, comparing biological to chemical oxidation in the selection of treatment process and performances, or depending on the waste stream it can provide insight into the concentration of reduced inorganic metal inorganic, such as ferrous iron, sulfide, and manganese. Chromium (Cr): The MCL is 0.05 mg/L. The impact of chromium is not clearly defined, but it is known to adversely impact aquatic organisms.
Chemical oxygen demand, a test that measures the potential capacity for a microorganism to react with oxygen.
Chemical Oxygen Demand is a measure of the oxygen consumed in the chemical oxidation of organic matter in water or effluent. It is a quicker test than BOD but does not always correlate with that test.
Chemical oxygen demand. A measure ofoxygen use equivalent to the portion of organicmatter that is susceptible to oxidation by a strongchemical oxidizing agent.
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Chemical Oxygen Demand. The milligrams of oxygen required to chemically oxidize the organic contaminants in one liter of wastewater.
See chemical oxygen demand.
Chemical oxygen demand indicating the amount of chemically oxidisable organic matter in the wastewaters (normally referring to analysis with dichromate oxidation)
Chemical Oxygen Demand. A standard test that measures the amount of the organic matter in wastewater that can be oxidized (burned up) by a very strong chemical oxidant.
Chemical Oxygen Demand. A quantitative measure of the amount of oxygen required to oxidize all organic components in a unit volume on waste water - non-biodegradable as well as the BOD. The COD level can be determined more readily than BOD, but this measurement does not indicate how much of the waste can be decomposed by biological oxidation.
Chemical Oxygen Demand – a measure of the oxygen required to oxidize chemicals contained in a sample.
CHEMICAL OXYGEN DEMAND. COD is an indicator of the quantity of excess organic matter in wastewater.
Chemical Oxygen Demand. An indirect measure of the amount of oxygen used by inorganic and organic matter in water. The measure is a laboratory test based on a chemical oxidant and therefore does not necessarily correlate with biochemical oxygen demand.
Chemical oxygen demand. Laboratory measurement of the amount of oxygen consumed under specific conditions in the oxidation of organic material by a strong chemical oxidant that decomposes both biodegradable (measured by biochemical oxygen demand) and nonbiodegradable organic matter.
Chemical Oxygen Demand. A measure of the amount of oxygen required for the chemical breakdown of organic matter in effluent.
CHEMICAL OXYGEN DEMAND. A measure of the oxygen consuming capacity of inorganic and organic matter present in water or wastewater. It is expressed as the amount of oxygen consumed from a chemical oxidant in a specific test. It does not differentiate between stable and unstable organic matter and thus does not necessarily correlate with biochemical oxygen demand.
chemical oxygen demand. The amount of oxygen required (mg/l)to chemically oxidize the organic matter in fluid wastes. Based on titration with an oxidant. It is faster and more convenient than BOD - but does not always correlate to biological treatability of the waste.
Chemical Oxygen Demand, a measure of the level of pollution of water
Chemical Oxygen Demand. A measure of the amount of oxygen required for the total chemical breakdown of organic substances in water by chemical oxygen-consuming substances.
Chemical Oxygen Demand. Chemical substances which consume oxygen. It is a measure of theamount of oxygen required for the total chemical breakdown of organic substances in water.
Chemical Oxygen Demand, a method of analysis to determine the content of organic matter in water.
Chemical Oxygen Demand. Its determination provides a measure of the oxygen demand equivalent of that portion of matter in a sample which is susceptible to oxidation by a strong chemical oxidant. Obtained by reacting the organic matter in the sample with oxidizing chemicals under specific conditions. COD does not necessarily correlate with BOD
Chemical oxygen demand; a test of the amount of oxygen needed for the complete non-biological oxidation of a sample.
Chemical oxygen demand. Quantitative measure of the strength of contamination by organic and inorganic carbon materials.
Chemical Oxygen Demand. A measure of the oxygen-consuming capacity of inorganic and organic matter present in wastewater. COD is expressed as the amount of oxygen consumed from a chemical oxidant in mg/L during a specific test. Results are not necessarily related to the biochemical oxygen demand because the chemical oxidant may react with substances that bacteria do not stabilize.
Chemical Oxygen Demand. A quantity connected with waste waters. It mainly serves to measure the ability of organic substances to consume oxygen in water.
A measure of the oxygen required to oxidize all compounds in water, both organic and inorganic.
chemical oxygen demand. The amount of oxygen utilized in the chemical reactions that occur in water as a result of the addition of wastes. COD is a measure of the pollution strength of chemical waste on dissolved oxygen in water.
Chemical Oxygen Demand. The amount of oxygen that is required/consumed during the digestion of organic waste by chemical means. COD is a relative measure of water quality since the higher the COD, the greater the amount of organic material in the water.
Chemical Oxygen Demand (water treatment)
Chemical Oxygen Demand: indicates the degree of contamination of wastewater by organic compounds.
Chemical oxygen demand. Water emission factor wich describes the amount of oxygen consumed when dissolved matter in effluent water oxidizes. High COD values can indicate a risk of depletion of the normal oxygen content in the water environment.
Chemical oxygen demand. A measure of oxygen use equivalent to the portion of organic matter that is susceptible to oxidation by a strong chemical oxidizing agent.
Chemical oxygen demand. MORE INFO the amount of oxygen (in mg) required for the complete chemical oxidation of organic and inorganic material in 1 litre of an effluent
Chemical Oxygen Demand. A measure of the oxygen required to oxidize all compounds, both organic and inorganic, in water.
A measure of the amount of oxygen needed to complete oxidation of organic matter in water.
Chemical Oxygen Demand. The amount of oxygen consumed by the chemical breakdown of organic and inorganic matter.
The abbreviation for "Chemical Oxygen Demand".