Oil and grease present in an emulsified state in waste water discharged from industries can be removed by?

Biological oxidation
Skimming off
Settling out using chemical reagents
Chlorination

LohaHridoy

5 views

2025-01-04 04:42

1 Answers

AhmedNazir

Answer: Option 3

5 views Answered 2022-09-01 13:21

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