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Which of the following method is not used for treating crown corrosion?

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in Environmental Engineering by (81.4k points)
Which of the following method is not used for treating crown corrosion?

(a) Full runs of sewer

(b) Increasing the sulfate content of sewage

(c) Aeration and chlorination of sewage

(d) Vitrified clay lining of sewer

This question was posed to me during an interview.

My doubt is from Material for Sewers topic in chapter Construction of Sewers, Sewer Appurtenances and Sewage Pumping of Environmental Engineering

1 Answer

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Best answer
Right choice is (b) Increasing the sulfate content of sewage

Best explanation: The pretreatment of sewage is done for treating the crown corrosion to reduce the sulfate content from sewage.

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