Class 4 (4th Engineer) SSEP 📅 Oct 2022

Exam Question

(a) Sketch a simple line diagram showing a shipboard oily water separator in series with a coalescing second stage.

(b) Briefly describe the above arrangement and its operations; also state the allowable oil content in p.p.m of the discharge effluent from such an arrangement.

Reference Answer

### (a) Sketch
A simple line diagram illustrating a shipboard two-stage oily water separator (OWS) is required. The diagram should clearly show the flow of the oily water mixture and the arrangement of the key components in series.
**Key Components to include in the sketch:**
1. **Suction Source:** Bilge Holding Tank or Oily Water Holding Tank.

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