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Auxiliary Machinery & Shipboard Systems • Sub-topic
Oily Water Separator
Bilge water to the 15 p.p.m. gate: MARPOL Annex I discharge rules, how separation works, pump and suction mode, inside the separator, the oil content monitor, the bilge system, the operating sequence, troubleshooting, maintenance, sludge disposal and safety.
Oily Water Separator
Oily Water Separator Topics
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01
Why the Oily Water Separator Is Fitted
Set out what the oily water separator is actually for, what the two international requirements are, and what the machine is made of.
02
When You May Discharge — MARPOL Annex I Limits, Distances and Special Areas
The legal conditions under which the overboard valve may be opened at all.
03
How Oily Water Separation Works — Gravity, Coalescence and Why Turbulence Ruins It
The physics behind the separator, in enough depth to explain why the plant is built the way it is and why certain operating habits destroy its performance.
04
OWS Pump Selection and the Suction Mode — Why the Pump Decides the Result
The single factor most often got wrong on board.
05
Inside the Oily Water Separator — Plates, Probes, Relief Valve and Siphon Breaker
What the oily water separator actually looks like inside, how the flow path works, and what every fitting on the shell is for.
06
Oil Content Monitoring and the 15 ppm Trip — Optics, Fluorescence and Testing
How the ship knows whether the water it is putting overboard is legal.
07
The Bilge System the Separator Serves
The pipework and the discipline that feed the separator and, more importantly, the arrangements that let a ship deal with a flooded engine room.
08
Operating the Oily Water Separator
The complete operating sequence, from informing the bridge to handing the key back.
09
Troubleshooting the Oily Water Separator — Ten Faults, Cause by Cause
A working diagnostic index for the oily water separator, the monitor and the bilge system that feeds it.
10
Maintenance of the Oily Water Separator — the Twelve Points and the Compliance Items
The routine that keeps the separator capable of holding 15 p.p.m., and the checks that keep the installation legally compliant.
11
Oily Sludge and Its Disposal
What happens to the oil the separator takes out.
12
Safety on the Oily Water Separator
The hazards specific to this plant, and the controls that answer them.