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Q4.  Describe in detail the operation, maintenance and monitoring of a bilge water processing unit to ensure compliance with the current MARPOL convention on the discharge of oily bilge water.(10)

Q6. (a) Sketch an oily water separator that compiles with current MARPOL regulations.

(b) Describe a monitoring system that ensures that the oil discharge content is below the recommended maximum and that logs and retains data. Also mention any other measures to ensure that illegal discharges are prohibited.

Q4. Describe, with the aid of a sketch, the principle of operation of a static oily water separator that utilises a separating matrix and polishing pack. (10)

Q3. Describe, with the aid of a sketch, the operation of a static Oily Water Separator which conforms to current MARPOL regulations and utilises a pump on the discharge side of the separator. (10)

Q3. With reference to static oily water separators, explain EACH of the following:

(a) why the supply pump should be carefully selected and matched to the separator; (2)

(b) how the separator achieves effective separation; (4)

(c) how the physical properties of each of the fluids to be separated affects the rate and effectiveness of separation. (4)