Why COD is preferred over BOD?
Answers
COD uses strong chemicals to oxidize organic matter. Generally, COD is preferred to BOD for process control measurements because results are more reproducible and are available in just two hours rather than five days.
As Chemical oxygen Demand(COD) can be found within a fraction of minutes over Biological Oxygen Demand(BOD) which requires an interval of at least 5 day that's why COD is preferred over BOD
few thing to know about BOD and COD
Biological oxygen demand - Biological Oxygen Demand (BOD) is oxygen required or needed by all the aerobic microbes to break down the organic matter present in a sample from water source
time interval is of 5 days Temperature is 20 degree Celsius
Chemical Oxygen Demand - Chemical Oxygen Demand(COD)is the total required amount of oxygen by organic matter during its decomposition in a sample from water source.
Determined by using a strong oxidizing agent instantly.
both COD and BOD are required to measure pollution in water bodies
Learn more
https://brainly.in/question/3583312
Learn more
https://brainly.in/question/16498082
#SPJ2