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Type your answer here... It's not. Typically, COD is greater than BOD. The COD test is used primarily as an operational control because it takes only a matter of hours, compared to 5 days for the BOD test.
Wiki User
∙ 13y ago
COD measures the amount of oxygen required to chemically oxidize (break down) organic and inorganic matter in a water sample, while BOD measures the amount of oxygen consumed by microorganisms during a biological process that breaks down organic matter. COD typically gives a higher value than BOD because it includes both the chemical and biological oxygen demand in the water sample.
Wiki User
∙ 14y agobecause bod contains only biodegradable but whereas cod includes both biodegradable and non biodegradable that is the reason why cod is larger than bod
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What does FFI do to the body?
Kills the bod.
The chemistry of aquatic ecosystems is determined my what?
This depends on pH, temperature, oxygen concentration (TOD, BOD, COD), concentration of many impurities, radioactivity, water flow speed, biology of the water, etc.
Is 600 millimeters greater than less than or equal to 6meters?
greater than
Is a ton greater or lesser than a kilogram?
a tonne is greater than a kilo.
What is greater a cm or a m?
A meter is greater than a centimeter. There are 100 centimeters in a meter.
Is BOD is greater than COD in waste water treatment?
COD is usually greater than BOD5 as it measures the oxidation of all organics, not just the biodegradable ones
What is BOD and COD of spent wash?
COD=100 What is Bod
What are the relationship between cod chemical oxygen demand and bod5 biological oxygen demand what does the ratio of bod cod or cod bod means?
The relationship between COD and BOD5 is that COD measures the total organic matter in water, while BOD5 measures the amount of oxygen required by microorganisms to biologically degrade organic matter. The ratio of BOD/COD or COD/BOD can indicate the biodegradability of organic matter in water; a high ratio suggests that the organic matter is easily biodegradable, while a low ratio indicates it is less biodegradable.
Why does chlorine increased the numbers of COD and BOD in the wastewater?
Chlorine can react with organic compounds in wastewater to form new byproducts that contribute to an increase in chemical oxygen demand (COD) and biochemical oxygen demand (BOD). These byproducts are often more difficult to break down and can lead to higher levels of COD and BOD in the water.
Rhymes with odd?
Rod Cod Bod Pod Wad
What is the values of COD and BOD in soft drinks?
me mama parri
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..
1 kg Sugar if dissolved in water what will be the BOD and COD?
BOD (biochemical oxygen demand) for sugar is typically low since it is easily consumed by microorganisms, while COD (chemical oxygen demand) is usually used to estimate the amount of organic pollutants in water. However, the specific BOD and COD values for 1 kg of sugar dissolved in water would depend on factors like temperature, microbial activity, and the presence of other substances in the water.
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.
BOD and COD definitions and relationship?
BOD is a measure of, the amount of oxygen that bacteria will consume while decomposing organic matter under aerobic conditions. Biochemical oxygen demand is determined by incubating a sealed sample of water for five days and measuring the loss of oxygen from the beginning to the end of the test. Samples often must be diluted prior to incubation or the bacteria will deplete all of the oxygen in the bottle before the test is complete.COD does not differentiate between biologically available and inert organic matter, and it is a measure of the total quantity of oxygen required tooxidize all organic material into carbon dioxide and water. COD values are always greater than BOD values, but COD measurements can be made in a few hours while BOD measurements take five days.
What is the difference between BOD and COD?
1. COD or Chemical Oxygen Demand is the total measurement of all chemicals in the water that can be oxidized BOD- Biochemical Oxygen Demand is supposed to measure the amount of food (or organic carbons) that bacteria can oxidize. 2. COD is usually measured and the test is simple and easy to perform with the right equipment and can be done in 2 hours. BOD usually takes 5 days 3. Permissible limit of COD =250 to 500 ppm Permissible limit for BOD = 30 mg/L
What advantages and disadvantages of the COD test compared to the BOD test?
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