Discussion :: Environmental Engineering
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Pick out the correct statement.
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A.
Chemical oxygen demand (COD) is a measure of chemically oxidisable organic matter present in water.
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B.
COD is determined by oxidising the organic matter present in water with potassium dichromate in cone, sulphuric acid solution at boiling temperature for specified time.
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C.
COD is related to BOD of a given waste in water but the relationship varies for different wastes. Typically COD of potable water may be 1-2 mg/litre.
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D.
all (a), (b) and (c).
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Answer : Option D
Explanation :
No answer description available for this question.
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