Tankerman · Pollution — Slops
Oily tank-washing residues are collected in a slop tank primarily to:
- AIncrease cargo capacity
- BAllow oil/water separation and prevent discharge of oil overboard✓ Correct
- CProvide ballast for stability only
- DStore fuel oil
Explanation
Slops settle in a dedicated tank so the separated water can be decanted within the strict MARPOL discharge criteria while the oil is retained on board (load-on-top) or pumped to a reception facility.
Authority: Pollution Prevention (MARPOL Annex I)
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