2012 Ocean Ranger Guidebook Revision 3-7-12 - Alaska ...

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2012 Ocean Ranger Guidebook 3-7-12 (10) Disposal of oil residue. (f) Entries shall be made in the Oil Record Book on each occasion, on a tank-to tank basis if appropriate, whenever any of the following operations take place on a fixed or floating drilling rig or other platform to which this section applies— (1) Discharge of ballast or cleaning water from fuel oil tanks; and (2) Discharge overboard of platform machinery space bilge water. (g) In the event of an emergency, accidental or other exceptional discharge of oil or oily mixture, a statement shall be made in the Oil Record Book of the circumstances of, and the reasons for, the discharge. (h) Each operation described in paragraphs (d), (e) and (f) of this section shall be fully recorded without delay in the Oil Record Book so that all the entries in the book appropriate to that operation are completed. Each completed operation shall be signed by the person or persons in charge of the operations concerned and each completed page shall be signed by the master or other person having charge of the ship. (i) The Oil Record Book shall be kept in such a place as to be readily available for inspection at all reasonable times and shall be kept on board the ship. (j) The master or other person having charge of a ship required to keep an Oil Record Book shall be responsible for the maintenance of such record. (k) The Oil Record Book for a U.S. ship shall be maintained on board for not less than three years. (l) This section does not apply to a barge or a fixed or floating drilling rig or other platform that is not equipped to discharge overboard any oil or oily mixture. (m) This section does not apply to a fixed or floating drilling rig or other platform that is operating in compliance with a valid National Pollutant Discharge Elimination System (NPDES) permit. Oily Water Separator (OWS) General information: Large cruise ships have installation(s) to treat oily water / oily bilge water / sludges and other waters that may contain oil. All these vessels have dedicated “oily water” installations on board. These installations separate the oily substances from the water. Applying simple logic to these systems- “what goes in goes out” will greatly assist in assessing operation of these installations. The guidebook, daily report and OR job aid list includes check items for this subject. A bullet list is included below with “attention points” that may be helpful to understand the installations better and to assist in the compliance verification. Please note many of the OWS checks have been moved to the Seasonal Report. This is to allow a morein depth look at the OWS items that should not change regularly. These seasonal checks need to be redone if there is major maintenance or piping changes to the oily water separation system. Oil Water Separation systems on board Alaska Trade Cruise vessels: General: All Alaska trade vessels have Oil Water Separation Systems on board. In general these systems can be divided in the following main components: Pre-treatment system: Collection tanks that are laid out for the settling process and/or combination of centrifuges for separation of oily water. Attention Points: Pre-treatment systems are multiple tanks dedicated pre-treatment tanks? How are they arranged? Including the transfer system to OWS system. 198
2012 Ocean Ranger Guidebook 3-7-12 Pre-treatment storage system, check tanks connections and plumbing to the OWS treatment. Check for locked valves / blind flanges and other piping arrangements. Are oil skimming arrangements used / installed in the pre-treatment system? How is the skimmed oil handled? Are portable pumps / hose arrangement used? If so identify from which area (source) to which tank the flow goes. OWS system is in all cases equipped with recirculation / by pass (non discharge line) system, where is the re-circulation / reject medium stored? Overflow provisions of the pre-treatment (settling tanks etc) where are the overflows going to? Are chemicals additives used in the pre–treatment process? Medium transfer records (volume change data time) of the pre treatment system available. Oil Water Separation process components OWS Dynamic process (centrifuges) can be standalone with OCM or combination of other components. OWS static process (filter) � Components in the White Box System (WBS)(see Picture): o Discharge monitoring Oil Content Monitoring (OCM) system / controls. o Three way valve system activated by discharge monitoring (open (overboard); close (recirculation) and flow and other controls monitoring o The WBS unit is in “locked cage” with key / tagging locking regime. o Calibration records Note that on all vessels the monitoring system on the OWS units is sealed and protected. On some vessels there are video cameras installed to monitor anybody that is working close to the White Box system. The layout of the WBS with the recirculation valve and controls of the OCM system are on most vessels protected by a cage. An example of MarinFloc® WBS (White Box System) Typical example Large Vessel OWS / White Box System Left side view inside the WBS system you see the data recorder, this recorder has local read –out and data storage. On most vessels is the WBS data recorder interfaced with the ABB / Siemens / Valmarine automation systems and data recorders / data storage is made as well. 199
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2012 Ocean Ranger Guidebook Revision 3-7-12 - Alaska ...

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