What is a typical OWS operational procedure?
07 Jan '21, 04:54
The usual operational procedure is as follows:
- Chief Engineer to inform the Master and take his permission before pumping out bilge water from the Engine Room through the 15 PPM Oily Water Separator.
- Confirm from Chief Engineer that vessel’s position is suitable for bilge disposal as per MARPOL regulations.
- Request Chief Engineer for the key to open overboard bilge discharge valve
- Open overboard discharge valve
- Close valve from OWS discharge line & open freshwater valve to 15 PPM monitor and flush thoroughly.
- Close fresh water flushing valve and open valve from OWS discharge line to 15 PPM monitor.
- Switch on 15 PPM monitor unit
- Open inlet to bilge separator from Bilge separator pump discharge.
- Open seawater suction to the bilge separator pump.
- Flush bilge separator with seawater for about 15 minutes.
- Confirm safe operation of three-way Recirculation valve located before the overboard discharge valve by pushing the test button located inside the 15 PPM panel
- When the unit is running normal and stabilized, change suction from seawater to the bilge tank.
- Observe separator operation and monitor discharge oil content.
- After completion of clean bilge disposal, flush bilge separator once again with seawater for about 15 minutes.
- Stop the bilge separator pump and isolate the OWS. Close overboard discharge valve and lock.
- Flush 15 PPM monitor thoroughly with fresh water.
- Switch off 15 PPM monitor unit.
- Return key back to the Chief Engineer and Inform Duty officer that the bilge disposal operation is completed and terminated.
- Record the operation in the Oil Record Book
07 Jan '21, 05:02