Oily bilge water is generated due to the leakage of water and oil from equipment and piping or maintenance works resulting from routine operation in the machinery space of ships. Such oil and water leakage is usually a mixture of both and is collected in the bilge well or on the tank top as oily water. Oily bilge water has to be treated in accordance with the requirements of International Convention for the Prevention of Pollution from Ships. To promote the prevention of oil pollution from machinery spaces of ships, it is very important to minimize the amount of oily bilge water generated in machinery spaces. Some remarks and proposals to improve the environmetal legislation were given. The proposed changes to diminish the pollution of the marine environment consisted in a reduction of the amount of oily water by the separation of the clean leakage (seawater, freshwater, water from boilers and distillates from air condition and air coolers). The leakages should be collected in the clean water tank and dumped directly overboard. The introduction of an incineration system, which would process the oil-polluted leakages polluted by combustion in the incinerator, boiler or other similar equipment to limit the necessity of adding oil to the non-processed oily leakage in order to rise their heat value. The introduction of a recirculation facility is recommended (an oil separator) before the outlet discharge is directed over board into the sea. The test would rely on the pumping of water through the bilge separeator from the bilge water holding tank until the moment when the required oil concentration is reached in the cleaned water.
Integrated bilge water treatment system
Problemy Eksploatacji ; 3 ; 223-230
2007
8 Seiten, 1 Bild, 2 Tabellen, 6 Quellen
Aufsatz (Zeitschrift)
Englisch
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