Tankerman · Operations — Crude Oil Washing
Crude oil washing (COW) reduces pollution by:
- AUsing the cargo's own crude oil as the cleaning medium, reducing clingage and slops✓ Correct
- BFilling tanks with seawater for cleaning
- CAdding detergents to the sea
- DVenting vapor to atmosphere
Explanation
COW sprays the tanks with the cargo crude during discharge, dissolving clingage so more cargo is delivered and far less oily residue and slop remains, cutting the need for water washing and reducing pollution.
Authority: MARPOL Annex I (crude oil washing); ISGOTT
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