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The tolerance limit of COD of sewage to be discharged in sea water is ____________

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The tolerance limit of COD of sewage to be discharged in sea water is ____________

(a) 250ppm

(b) 100ppm

(c) 40ppm

(d) 20ppm

This question was addressed to me in a national level competition.

This intriguing question originated from Disposal of Sewage topic in portion Natural Methods of Wastewater Disposal of Environmental Engineering

1 Answer

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Best answer
Correct option is (a) 250ppm

Easy explanation: The tolerance limit of COD of sewage to be discharged in sea water and on land for irrigation purpose is 250ppm.

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