Define and give significance of BOD and COD

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written 5.7 years ago by

• modified 5.7 years ago

Waste waters are characterized on the basis of various

1) Physical characteristics- color, odour, dissolved oxygen, etc.

2) Chemical characteristics-COD, pH, acidity, alkalinity,total C,etc

3) Biochemical characteristics-BOD, presence of pathogenic bacteria, toxicity to aquatic organisms, plants & other life forms, etc.

1) BOD(Biochemical oxygen demand)-

It is defined as …

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