Bod and Cod Testing Services in Chennai
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BOD and COD testing services
Biochemical oxygen demand, or BOD, is a element procedure for determining the amount of dissolve oxygen needed by aerobic biological organisms in a body of water to break down natural material there in a given water sample at sure temperature over a specific time period. It is not a precise quantitative test, although it is widely used as an indication of the organic quality of water. It is most usually expressed in milligrams of oxygen consumed per liter of example during 5 days (BOD5) of incubation at 20°C and is often used as a robust surrogate of the extent of organic contamination of water.
Biological oxygen demand straight affects the quantity of dissolved oxygen in rivers and stream. The rate of oxygen consumption is affected by a number of variables: hotness, pH, the presence of certain kinds of microbes, and the type of organic and inorganic cloth in the water.
The chemical oxygen demand (COD) is a measure of water and wastewater quality. The COD test is often used to check water treatment plant efficiency. This test is base on the fact that a tough oxidizing manager, under acidic conditions, can fully oxidize almost any organic compound to carbon dioxide. The COD is the amount of oxygen inspired to chemically oxidize organic water contaminants to inorganic end products.
The COD is often measured using a strong oxidant under acidic situation. A known excess amount of the oxidant is added to the sample. Once oxidation is complete, the attention of organics in the sample is designed by measuring the amount of oxidant remaining in the solution. This is usually done by titration, by an indicator solution.
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