COD VS BOD - จำหน่ายเกจวัดแรงดัน Pressure Gauge ทุกยี่ห้อ

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

Both COD and BOD testing methods are designed to indicate the amount of contamination in a water pattern. 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 strong correlation between COD and BOD, but COD analysis is a quicker and extra accurate technique.
BOD evaluation is carried out to determine the influence of soiled 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 take a look at measures the potential for the incoming water to deplete the oxygen in the receiving water because of bacterial exercise.
If there are high levels of organic waste and bacteria in the water, it’s going to have a negative impact on the encircling ecosystem. Low ranges of natural waste and fewer bacteria present signifies that BOD will be lower and dissolved oxygen levels shall be greater. the BOD take a look at consists of acquiring an preliminary dissolved oxygen (DO) reading and a second studying after 5 days of incubation at 20 °C.
COD evaluation, then again, measures the oxygen consumption capability of a water pattern contaminated with natural waste. Specifically, it measures the equal quantity of oxygen required to chemically oxidize organic compounds in the water and thereby eliminate the contamination. COD is an integral a part of all water quality management packages.
Almost all wastewater treatment plants need to measure one of these two objects as an indicator of the air pollution worth within the water. For ไดอะแฟรม ซีล and related monitoring gear for wastewater remedy, please see this text water high quality sensors for water treatmet.
COD VS BOD

BODCOD

BOD is a organic 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 sample for incubation for a interval of 5 days at 20 diploma Celsius. The reduction in dissolved oxygen gives the amount of oxygen consumed by the cardio organisms.In COD test, the water sample is incubated with a powerful

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

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

BOD is used to oxidize the pure

natural matter and natural waste within the waterCOD is capable of degrading the economic sewage. COD doesn’t measure the quantity of oxygen consumed by acetates current 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 domestic wastewater

Read more 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 the distinction between chemical oxygen demand (COD) and biological oxygen demand (BOD)?

Both COD and BOD testing strategies are designed to point the quantity 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 strong correlation between COD and BOD, however COD analysis is a sooner and extra accurate methodology.
BOD analysis is performed to determine the impact of soiled water containing bacteria and organic material on plant and animal life when released right into a stream or lake. Bacteria need to absorb oxygen to interrupt 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 due to bacterial activity.
If there are excessive ranges of natural waste and bacteria within the water, it will have a negative influence on the surrounding ecosystem. Low levels of organic waste and fewer micro organism current signifies that BOD will be decrease and dissolved oxygen levels might be greater. the BOD check consists of obtaining an preliminary dissolved oxygen (DO) reading and a second studying after 5 days of incubation at 20 °C.
COD evaluation, however, measures the oxygen consumption capacity of a water sample contaminated with natural waste. Specifically, it measures the equivalent amount of oxygen required to chemically oxidize organic compounds within the water and thereby get rid of the contamination. COD is an integral a half of all water quality management packages.
Almost all wastewater remedy plants need to measure one of these two objects as an indicator of the pollution value in the water. For extra water high quality indicators and associated monitoring tools for wastewater treatment, 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 carried out by chemical reagents

BOD is measured by keeping a sealed water pattern for incubation for a period of 5 days at 20 degree Celsius. The discount 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 robust

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

inside few days.
BOD worth is lower than CODCOD worth is all the time higher 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 amount of oxygen consumed by acetates present within the water pattern