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  2. Oily water separator (marine) - Wikipedia

    en.wikipedia.org/wiki/Oily_water_separator_(marine)

    This type of Oily Water Separator is common in ships, but it has flaws that decrease efficiency. Oil particles that are twenty micrometers or smaller are not separated. The variety of oily wastes in bilge water can limit removal efficiency especially when very dense and highly viscous oils such as bunker oil are present.

  3. Oil–water separator - Wikipedia

    en.wikipedia.org/wiki/Oilwater_separator

    Marine oily water separator. The purpose of a shipboard oily water separator is to separate oil and other contaminants that could be harmful for the oceans. They are most commonly found on board ships where they are used to separate oil from oily waste water such as bilge water before the waste water is discharged into the environment.

  4. Magic pipe - Wikipedia

    en.wikipedia.org/wiki/Magic_pipe

    A marine oily water separator. The pipe may be improvised, aboard ship, from available hoses and pumps, to discharge untreated waste water directly into the sea. As ships are required to keep records of waste and its treatment, magic pipe cases often involve falsification of these records.

  5. White box system - Wikipedia

    en.wikipedia.org/wiki/White_box_system

    A white box system is a mechanical system installed in the engine room of a ship for controlling and monitoring the engine room bilge water discharge from the vessel. The system consists of all vital components for monitoring and controlling the discharge from the vessel's oily water separator. The white box includes a stainless steel cage with ...

  6. Regulation of ship pollution in the United States - Wikipedia

    en.wikipedia.org/wiki/Regulation_of_ship...

    In April 2021 a ship engineer on the Zao Galaxy, an oil tanker, was convicted in the United States District Court for the Northern District of California for intentionally dumping oily bilge water in February 2019 and submitting false paperwork in an attempt to conceal the crime. The engineer may receive a substantial prison sentence and fine.

  7. MARPOL 73/78 - Wikipedia

    en.wikipedia.org/wiki/MARPOL_73/78

    Discharge of oil within them has been completely outlawed, with a few minimal exceptions. [5] The first half of MARPOL Annex I deals with engine room waste. There are various generations of technologies and equipment that have been developed to prevent waste such as oily water separators (OWS), oil content meters (OCM), and port reception ...