COD VS BOD

What is the difference between chemical oxygen demand (COD) and organic oxygen demand (BOD)?

Both COD and BOD testing methods are designed to point the quantity of contamination in a water pattern. COD is the amount of oxygen required to chemically break down contaminants, while BOD is the quantity of oxygen required for biodegradation by microorganisms.There is a robust correlation between COD and BOD, but COD evaluation is a faster and extra correct method.
BOD analysis is carried out to determine the impact of dirty water containing bacteria and organic material on plant and animal life when launched into a stream or lake. Bacteria want to soak up oxygen to break down natural materials (pollution) within the water. The test measures the potential for the incoming water to deplete the oxygen in the receiving water due to bacterial activity.
If there are high ranges of natural waste and bacteria in the water, it’ll have a negative impression on the encompassing ecosystem. Low levels of natural waste and fewer bacteria present signifies that BOD shall be lower and dissolved oxygen ranges will be greater. the BOD test consists of acquiring an initial dissolved oxygen (DO) studying and a second studying after 5 days of incubation at 20 °C.
COD analysis, on the opposite hand, measures the oxygen consumption capacity of a water sample contaminated with natural waste. Specifically, it measures the equivalent quantity of oxygen required to chemically oxidize natural compounds in the water and thereby get rid of the contamination. COD is an integral a half of all water high quality administration programs.
Almost all wastewater remedy vegetation need to measure considered one of these two objects as an indicator of the air pollution worth within the water. For extra water high quality indicators and associated monitoring equipment for wastewater remedy, please see this article water high quality sensors for water treatmet.
COD VS BOD

BODCOD

BOD is a biological oxidation processCOD is a chemical oxidation process

BOD is performed by cardio organismsCOD is performed by chemical reagents

BOD is measured by maintaining a sealed water sample for incubation for a period of 5 days at 20 degree Celsius. The reduction in dissolved oxygen offers the quantity of oxygen consumed by the aerobic organisms.In COD test, the water pattern is incubated with a powerful

oxidant together with boiling sulphuric acid for a selected period of time and temperature.
BOD value is determined by 5 days.COD may be measured

within few days.
BOD worth is lower than CODCOD value is all the time greater than BOD

BOD is used to oxidize the natural

organic matter and natural waste in the waterCOD is able to degrading the industrial sewage. COD does not measure the quantity of oxygen consumed by acetates present in the water sample

COD VS BOD

ClassificationBOD (mg/l )COD (mg/l )

Weak<200<400

Medium350700

Strong5001000

Very Strong>750>1500

BOD and COD traits of domestic wastewater

Read more about water quality parameters:
Ammonia in wastewater

Nitrate in water high quality

Ammonia vs ammonium

Solution of water pollutionn
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What is the difference between chemical oxygen demand (COD) and organic oxygen demand (BOD)?

Both COD and BOD testing methods are designed to point the amount of contamination in a water sample. COD is the amount of oxygen required to chemically break down contaminants, while BOD is the quantity of oxygen required for biodegradation by microorganisms.There is a robust correlation between COD and BOD, but COD analysis is a faster and more accurate methodology.
pressure gauge octa is carried out to discover out the impression of soiled water containing bacteria and natural material on plant and animal life when launched into a stream or lake. Bacteria need to absorb oxygen to break down natural materials (pollution) within the water. The test measures the potential for the incoming water to deplete the oxygen within the receiving water due to bacterial exercise.
If there are excessive ranges of natural waste and bacteria in the water, it’s going to have a adverse influence on the encircling ecosystem. Low levels of natural waste and fewer micro organism current implies that BOD will be decrease and dissolved oxygen levels shall be larger. the BOD take a look at consists of acquiring an preliminary dissolved oxygen (DO) studying and a second reading after 5 days of incubation at 20 °C.
COD analysis, then again, measures the oxygen consumption capacity of a water pattern contaminated with natural waste. Specifically, it measures the equal amount of oxygen required to chemically oxidize natural compounds in the water and thereby eliminate the contamination. COD is an integral a part of all water high quality management applications.
Almost all wastewater remedy vegetation need to measure one of these two items as an indicator of the pollution worth in the water. For more water high quality indicators and associated monitoring tools for wastewater therapy, please see this text water quality sensors for water treatmet.
COD VS BOD

BODCOD

BOD is a biological oxidation processCOD is a chemical oxidation course of

BOD is performed by aerobic organismsCOD is performed by chemical reagents

BOD is measured by preserving a sealed water pattern for incubation for a period of 5 days at 20 degree Celsius. The reduction in dissolved oxygen gives the quantity of oxygen consumed by the aerobic organisms.In COD test, the water sample is incubated with a robust

oxidant in combination with boiling sulphuric acid for a selected period of time and temperature.
BOD worth is determined by 5 days.COD may be measured

within few days.
BOD worth is decrease than CODCOD worth is always greater than BOD

BOD is used to oxidize the natural

organic matter and organic waste in the waterCOD is capable of degrading the commercial sewage. COD does not measure the amount of oxygen consumed by acetates present within the water sample

COD VS BOD

ClassificationBOD (mg/l )COD (mg/l )

Weak<200<400

Medium350700

Strong5001000

Very Strong>750>1500

BOD and COD traits of home wastewater

Read more about water quality parameters:
Ammonia in wastewater

Nitrate in water high quality

Ammonia vs ammonium

Solution of water air pollutionn

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