What is the working principle of oily water separator?

The principle of separation of Oily water separator on which the separator function is the gravity differential between oil and water. The force acting on oil Globule to move in the water is proportional to the difference in weight between the oil particle and a particle of water of equal volume.

How does an oil water separator works on board ship?

A gravity plate separator contains a series of oleophilic plates through which the contaminated water flows. The oil in the water coalesces on the underside of the plate eventually forming droplets before coalescing into liquid oil which floats off the plates and accumulates at the top of the chamber.

What are the 3 segments of an oily water separator?

Typically, OWS is made up of three segments, which are separator unit, filter unit, and oil content monitor and control unit. The separator and filter units are included as treatment units, where many designs and different principles are applied.

What is the function of 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.

What is the purpose of the oil record book?

All cargo vessels where MARPOL Convention is applicable must have an oil record book in which the chief engineer will record all oil or sludge transfers and discharges within the vessel. This is necessary for authorities to be able to monitor if a vessel’s crew has properly disposed of their oil discharges at sea.

How do you operate an oily water separator OW on a ship?

Operating Procedure Open the lock and overboard valve. Open all the other valves of the system. 2) Open the desired bilge tank valve from which the oily water mixture is to be discharged from OWS. 3) Open air if the control valves are air operated.

How is the working principle of sewage treatment Oıly water separator?

After wastewater passes through filters to separate out the largest solids, it is funneled into the oil water separator to undergo treatment. In most cases, the wastewater travels across a series of plates, generally on an incline. These plates help to separate oil, water, and sludge into three distinct spaces.

What principle can be used to detect oil content ppm in an oil content monitor?

light scattering measurement principle
These oil content meters work using a light scattering measurement principle. The sample is passed through an optical cell and the light scatter algorithms will calculate the level of oil content, measured by PPM (parts per million).

What is the purpose of oil separator?

The function of an oil separator is to separate oil from the hot gas in the discharge line and return it to the compressor crankcase or to the oil reservoir in systems with multiple compressors.

What are the oil record book requirements?

The document required to be carried on board ships by MARPOL 73/78, Annex I, reg. 20. Every oil tanker of 150 gross tonnage and above and every ship of 400 gross tonnage and above, other than oil tanker, shall be provided with an Oil Record Book, Part I (Machinery space operations).

What are the parts of an oil record book and its requirements?

1 Every oil tanker of 150 gross tonnage and above and every ship of 400 gross tonnage and above other than an oil tanker shall be provided with an Oil Record Book Part I (Machinery space operations)….

What is oily bilge water?

Oily bilge water means liquid from the bilge of a gambling vessel which contains used lubrication oils, oil sludge and slops, fuel and oil sludge, used oil, used fuel and fuel filters, and other oily waste. Oily bilge water does not include routine discharges of raw water used for engine cooling.