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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
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.
In BOD testing what is residual DO?
DO is dissolved oxygen
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?
BOD is inversely proportional to COD
Why does chlorine increased the numbers of COD and BOD in the wastewater?
No, not increasing because it is not reducing oxygen.But it can alter the measured BOD and COD rather unpredictable possibly by decreasing BOD and in- or de-creasing COD
1 kg Sugar if dissolved in water what will be the BOD and COD?
0.7 kg of BOD and 1.4 kg of COD
Rhymes with odd?
Rod Cod Bod Pod Wad
What is the values of COD and BOD in soft drinks?
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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 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 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 advantages and disadvantages of the COD test compared to the BOD test?
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