COD VS BOD

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

Both COD and BOD testing strategies are designed to point the amount of contamination in a water pattern. COD is the quantity 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 sooner and extra accurate method.
BOD evaluation is carried out to find out the impression of soiled water containing micro organism and natural materials on plant and animal life when launched into a stream or lake. Bacteria need to absorb oxygen to interrupt down organic material (pollution) within the water. The take a look at measures the potential for the incoming water to deplete the oxygen in the receiving water due to bacterial exercise.
If there are excessive levels of organic waste and bacteria in the water, it’s going to have a negative impact on the surrounding ecosystem. Low ranges of organic waste and less bacteria current means that BOD will be decrease and dissolved oxygen levels might be greater. 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.
เกจวัดความดันน้ำ , on the opposite hand, measures the oxygen consumption capacity of a water sample contaminated with organic waste. Specifically, it measures the equal quantity of oxygen required to chemically oxidize organic compounds in the water and thereby remove the contamination. COD is an integral a half of all water high quality management packages.
Almost all wastewater therapy vegetation have to measure considered one of these two objects as an indicator of the pollution worth in the water. For more water quality indicators and related monitoring gear for wastewater treatment, please see this text 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 aerobic organismsCOD is performed by chemical reagents

BOD is measured by maintaining a sealed water pattern for incubation for a interval of 5 days at 20 diploma Celsius. The reduction in dissolved oxygen gives the quantity of oxygen consumed by the cardio organisms.In COD check, the water pattern is incubated with a strong

oxidant together with boiling sulphuric acid for a particular time frame and temperature.
BOD worth is decided by 5 days.COD could be measured

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

BOD is used to oxidize the natural

organic matter and natural waste in the waterCOD is capable of degrading the commercial sewage. COD does not measure the quantity 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 traits of domestic wastewater

Read more about water quality parameters:
Ammonia in wastewater

Nitrate in water quality

Ammonia vs ammonium

Solution of water pollutionn
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What is the distinction between chemical oxygen demand (COD) and biological 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 analysis is a sooner and more accurate method.
BOD analysis is carried out to determine the impression of soiled water containing micro organism and organic material on plant and animal life when launched right into a stream or lake. Bacteria want to absorb oxygen to break down natural materials (pollution) within the water. The take a look at measures the potential for the incoming water to deplete the oxygen within the receiving water as a result of bacterial exercise.
If there are excessive levels of organic waste and micro organism in the water, it’ll have a adverse influence on the surrounding ecosystem. Low ranges of organic waste and fewer bacteria current signifies that BOD shall be decrease and dissolved oxygen levels will be higher. the BOD check 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 pattern contaminated with organic waste. Specifically, it measures the equivalent amount of oxygen required to chemically oxidize organic compounds in the water and thereby get rid of the contamination. COD is an integral part of all water high quality management applications.
Almost all wastewater treatment vegetation have to measure one of these two gadgets as an indicator of the pollution value within the water. For extra water high quality indicators and related monitoring gear for wastewater treatment, please see this article water quality sensors for water treatmet.
COD VS BOD

BODCOD

BOD is a organic oxidation processCOD is a chemical oxidation process

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

BOD is measured by keeping a sealed water pattern for incubation for a interval of 5 days at 20 diploma Celsius. The reduction in dissolved oxygen provides the amount of oxygen consumed by the aerobic organisms.In COD check, the water pattern is incubated with a strong

oxidant in combination with boiling sulphuric acid for a selected time frame and temperature.
BOD value is set by 5 days.COD could be measured

inside few days.
BOD value is decrease than CODCOD worth is at all times larger than BOD

BOD is used to oxidize the pure

natural matter and organic waste in the waterCOD is capable of degrading the industrial sewage. COD doesn’t measure the quantity of oxygen consumed by acetates present in the water pattern

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 high quality parameters:
Ammonia in wastewater

Nitrate in water high quality

Ammonia vs ammonium

Solution of water pollutionn

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