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in Environmental Biotechnology by (64.7k points)
Which of the following is not a hazardous waste of petrochemical processes?

(a) Tarry residue

(b) Oily sludge

(c) Slop oil

(d) Vegetable oil

I got this question during an interview.

My question is from Treatment of Hazardous Wastes topic in portion Biotechnology for Solid Waste Management of Environmental Biotechnology

1 Answer

+2 votes
by (736k points)
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Best answer
Correct option is (d) Vegetable oil

To explain: Tarry residue, oily sludge, slop oil, spent catalyst, organic residues, etc. are the hazardous waste of petrochemical processes which should be handled correctly and disposed of carefully without causing any damage to the environment. Vegetable oil doesn’t pose any threat as it’s a kitchen waste and not waste of petrochemical processes.

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