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Chemical Oxygen Demand (COD) is a labortory test to give a measure of the amount of reactive organic materials in a sample of water. Like the five day Biochemical Oxygen Demand (BOD5) it demonstrates the amount of organics present by how much oxygen they consume over a period of carefully controlled conditions (the starting and ending oxidant concentrations are measured and the temperature is controlled)
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What is mean chemical oxygen demand-?
The mean oxygen demand is the test done to indirectly determine the amount of organic compounds present in a water sample.
What is the chemical oxygen demand of drinking water?
The chemical oxygen demand (COD) of drinking water is typically low, ranging from 1 to 5 mg/L. This value indicates the amount of oxygen required to oxidize organic and inorganic matter present in the water. High COD levels in drinking water can indicate contamination and the presence of pollutants.
What element go you get when combining iridium oxygen and nitrogen?
Well, this is a fun type question. The answer to this funny question is Iron (Ir of iridium, O for oxygen and N for nitrogen).But in principle, there is no chemical reaction and the element iron is not formed when iridium is treated with oxygen and nitrogen
What is the chemical symbol for the eement oxygen?
The chemical symbol for the element oxygen is O.
Is reacts with oxygen a physical property or a chemical property?
If something reacts with oxygen that is a description of a chemical property.
Why is there a demand for chemical oxygen?
There is a very large demand for chemical oxygen. Chemical oxygen is very sought after because it can be used to determine when water is contaminated with pollutants.
What is mean chemical oxygen demand-?
The mean oxygen demand is the test done to indirectly determine the amount of organic compounds present in a water sample.
Waste water cod stand for?
COD = Chemical Oxygen Demand
Define the term cod and bod?
"COD" is Chemical Oxygen Demand," and BOD is Biochemical Oxygen Demand." These are the two processes that cause oxidation of an object in either a natural waterway or in industrial wastewater..
What is the different between biochemical oxygen demand and biological oxygen demand?
Oxygen Demand -The amount of oxygen require to oxidize an organic materialBiochemical (Biological) Oxygen Demand (BOD) -The amount of oxygen required to oxidized any organic matter present in the water by microbes present in the water. Usually representin the easily "digestible" organics.Chemical Oxygen Demand (CO) - The amount of oxidants experessed as oxygen required to consume all organics in a water sampleTotal Oxygen Demand (TOD) the sum of COD and BODBiological Oxygen demand is the oxygen required to oxidized only organic matter by micro organisms (it is basically a prototype of actual process happening in treatment plant) while chemical oxygen demand is the oxygen consumed to oxidize all organic and inorganic matter and it employ chemicals to do this process that why it is way more fast then BOD experiment .
What is the significance of BOD and COD in water quality management?
Biochemical oxygen demand (BOD) and chemical oxygen demand (COD) both measure the quantity of organic compounds found in water. The makes them significant when is comes to the treatment of water.
What is the chemical oxygen demand of drinking water?
The chemical oxygen demand (COD) of drinking water is typically low, ranging from 1 to 5 mg/L. This value indicates the amount of oxygen required to oxidize organic and inorganic matter present in the water. High COD levels in drinking water can indicate contamination and the presence of pollutants.
How does the temperature of water effect the dissolved oxygen?
Well, dissolved oxygen impacts water quality because if the level of the dissolved oxygen is too low then organisms can die. _________________________________________________________________ That is okay, but I want to what dissolved oxygen tests for. ------ For the water quality are tested: - total oxygen demand (TOD) - biochemical oxygen demand (BOD) - chemical oxygen demand (COD) - sometimes, carbonaceous biochemical oxygen demand (CBOD) For details about the analytical procedures I recommend you to read a book or a collection of analytical methods for water, searching in a library or searching on the Internet.
What businesses offer biochemical oxygen on demand?
Some of the chemical companies offer biochemical oxygen on demand would be the Myron L Company, Mantech, Environmental Services by Daniel L. Theobald, Ovivo, Westech Engineering, and Cleveland Biotech Ltd.
What is theoretical oxygen demand?
The calculated amount of oxygen required to oxidized a compound to its final oxidation products . The organic matter of sewage is mainly composed of carbohydrats , protein, fats,and products of their decomposition . If the chemical formulaeof the organic matter are called as theoretical oxygen demand can be calculatd.
What are the chemical and the principle involved in preventing rusting?
Anything that keeps oxygen (air) away from iron will prevent rust - galvanize, paint, oil, etc.
Chemical oxygen demand?
Chemical oxygen demand (COD) is a measure of the amount of oxygen required to chemically oxidize organic and inorganic matter in water. It is commonly used as an indicator of water quality and pollution levels in bodies of water. High COD levels indicate higher organic contamination and can lead to depleted oxygen levels, impacting aquatic life.
