Which of the following chemical parameters are associated with the organic content of water 1. Biochemical Oxygen Demand (BOD) 2. Chemical Oxygen Demand (COD) 3. Total Organic Carbon (TOC) and Total Oxygen Demand (TOD)?

1 and 2 only
1 and 3 only
2 and 3 only
1, 2 and 3

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 4 : 1, 2 and 3

Concept:

BOD, COD, TOC and TOD all are associated with organic content of water. COD is related to both inorganic and organic content of water.

Chemical Oxygen Demand(COD)	Biological oxygen Demand(BOD)	Theoretical Oxygen Demand	Total Organic carbon
The amount of oxygen required by the bio degradable and non-bio-degradable organic matter present in waste water.	The amount of oxygen required by the bio degradable organic matter present in waste water.	Through chemical reaction equations, the exact amount of organic matter present represent Theoretical Oxygen Demand.	It is a form of presentation of amount of organic matter in form of its carbon content.

Other Important points:

COD is also known as Di-chromate demand.

4 views Answered 2022-09-04 04:29

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