Measuring Biochemical Oxygen Demand (BOD) is a method used for

Measuring Biochemical Oxygen Demand (BOD) is a method used for
A Working out the efficiency of R.B.Cs. about their capacity to carry oxygen
B Estimating the amount of organic matter in sewage water
C Working out the efficiency of oil driven automobile engines
D Measuring the activity of Saccharomyces cerevisiae in producing curd on a commercial scale

Detailed Solution

BOD is the amount of oxygen that would be consumed if all the organic matter in one litre of water were oxidised by bacteria.
It measures the organic matter present in sewage water: the greater the BOD, the greater the polluting potential.

Sewage treatment in past papers

6 questions from this chapter have appeared across 5 exam years.

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Practise Sewage treatment All 6 questions This chapter in 2012 AIPMT-PRE