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The tolerance limit of BOD of sewage to be disposed on land is ____________

(a) 100ppm

(b) 200ppm

(c) 500ppm

(d) 400ppm

I had been asked this question in an online quiz.

I want to ask this question from Disposal of Sewage topic in section Natural Methods of Wastewater Disposal of Environmental Engineering

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Best answer
The correct answer is (c) 500ppm

Explanation: The tolerance limit of BOD of sewage to be discharged into sea water is 100ppm while to be disposed on land is 500ppm.

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