BOD COD Th0D all represent waste Explain why the values for

BOD, COD, & Th0D all represent waste. Explain why the values for each would be different for a single wastewater sample. A wastewater sample from an industrial process only contains 10 contaminants, and each one of the contaminants can be measured using the aggregate BOD measurement. Identify and list 10 specific contaminants that could be in this wastewater Construct aVenn diagram that compares and contrasts D.O. threats.

Solution

BOD represents the Biochemical oxygen demand. It means it only represents the organic matter that can be degraded by only biological means.

COD is chemical oxygen demand. It represents the oxygen demand which is biological or non biological. It means for nitrogeneous bod is also represents by COD.

ThOD represents the thoritica oxygen demand which gives exact theoritica value if we know the other values in a reaction.