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Spent caustic from metal finishing is an example for __________ waste category.

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in Hazardous Waste Management by (63.0k points)
Spent caustic from metal finishing is an example for __________ waste category.

(a) Organic aqueous

(b) Inorganic aqueous

(c) Organic liquid

(d) Organic sludge

This question was posed to me at a job interview.

This question is from Engineering System Classification in division Classification of Hazardous Waste of Hazardous Waste Management

1 Answer

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by (424k points)
Correct option is (b) Inorganic aqueous

For explanation: Spent sulphuric acid from galvanizing, spent caustic from metal finishing and ammonia from manufacturing is an example for inorganic aqueous waste.

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