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 indicate the amount of contamination in a water sample. COD is the quantity of oxygen required to chemically break down contaminants, whereas BOD is the amount of oxygen required for biodegradation by microorganisms.There is a robust correlation between COD and BOD, however COD analysis is a quicker and extra correct methodology.
pressure gauge is carried out to determine the impression of dirty water containing bacteria and organic materials on plant and animal life when released right into a stream or lake. Bacteria want to absorb oxygen to break down natural material (pollution) in the water. The check measures the potential for the incoming water to deplete the oxygen within the receiving water because of bacterial activity.
If there are excessive ranges of natural waste and micro organism in the water, it will have a negative impact on the encircling ecosystem. Low levels of natural waste and less bacteria current implies that BOD shall be lower and dissolved oxygen levels shall be higher. the BOD take a look at consists of obtaining an preliminary dissolved oxygen (DO) studying and a second reading after 5 days of incubation at 20 °C.
COD analysis, on the other hand, measures the oxygen consumption capacity of a water pattern contaminated with organic waste. Specifically, it measures the equivalent amount of oxygen required to chemically oxidize organic compounds in the water and thereby remove the contamination. COD is an integral part of all water high quality management programs.
Almost all wastewater treatment crops have to measure certainly one of these two gadgets as an indicator of the pollution value within the water. For more water high quality indicators and related monitoring tools for wastewater treatment, please see this text water quality sensors for water treatmet.
COD VS BOD

BODCOD

BOD is a organic oxidation processCOD is a chemical oxidation process

BOD is carried out by aerobic organismsCOD is carried out by chemical reagents

BOD is measured by preserving a sealed water sample for incubation for a period of 5 days at 20 degree Celsius. The discount in dissolved oxygen provides the quantity of oxygen consumed by the aerobic organisms.In COD take a look at, the water pattern is incubated with a strong

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

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

BOD is used to oxidize the pure

organic matter and organic waste in the waterCOD is capable of degrading the economic sewage. COD does not measure the amount of oxygen consumed by acetates current 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 characteristics of domestic wastewater

Read extra about water quality parameters:
Ammonia in wastewater

Nitrate in water quality

Ammonia vs ammonium

Solution of water air pollutionn
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What is pressure gauge 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 amount of oxygen required for biodegradation by microorganisms.There is a strong correlation between COD and BOD, but COD analysis is a faster and extra accurate method.
BOD analysis is carried out to determine the impact of dirty water containing micro organism and natural materials on plant and animal life when released into a stream or lake. Bacteria want to soak up oxygen to interrupt down natural materials (pollution) in the water. The take a look at measures the potential for the incoming water to deplete the oxygen in the receiving water because of bacterial activity.
If there are high ranges of organic waste and bacteria within the water, it’ll have a negative impression on the encompassing ecosystem. Low levels of organic waste and fewer micro organism current implies that BOD will be lower and dissolved oxygen levels will be greater. the BOD take a look at consists of acquiring an initial dissolved oxygen (DO) reading and a second studying after 5 days of incubation at 20 °C.
COD evaluation, then again, measures the oxygen consumption capacity of a water pattern contaminated with organic waste. Specifically, it measures the equivalent amount of oxygen required to chemically oxidize natural compounds in the water and thereby get rid of the contamination. COD is an integral part of all water quality administration programs.
Almost all wastewater treatment plants must measure one of these two gadgets as an indicator of the air pollution value in the water. For more water high quality indicators and related monitoring equipment for wastewater therapy, please see this article water high quality sensors for water treatmet.
COD VS BOD

BODCOD

BOD is a organic oxidation processCOD is a chemical oxidation process

BOD is performed by cardio organismsCOD is carried out by chemical reagents

BOD is measured by preserving a sealed water sample for incubation for a interval of 5 days at 20 degree Celsius. The reduction in dissolved oxygen offers the quantity of oxygen consumed by the cardio organisms.In COD take a look at, the water sample is incubated with a powerful

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

within few days.
BOD worth is decrease than CODCOD value is always higher than BOD

BOD is used to oxidize the pure

organic matter and organic waste within the waterCOD is capable of degrading the commercial sewage. COD doesn’t 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 domestic wastewater

Read extra about water high quality parameters:
Ammonia in wastewater

Nitrate in water quality

Ammonia vs ammonium

Solution of water air pollutionn

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