1. Separation process in the first tube.
Water that is pumped into the tube will undergo separation where the water will pass through the main separator plates which are installed horizontally in the separating tube so that the mud will not pass or go with the water into the chamber. The water that still contains oil that passes through the plate These main templates will undergo the separation process on the second plates, so that light mud will be retained. Furthermore, in this tube a separation process will occur where the working principle is based on the specific gravity of the liquid so that oil which has a lower specific gravity than water will be on the surface of the water and collected in the oil collection chamber. Then the sewage water which has been separated with oil based on this specific gravity, will be distributed to the second separator tube.
2. Separation process in the second tube.
After going through the separation process in the first separating tube, the sewage water that has reduced its oil content will undergo another separation process, where in the second separating tube the got water will be filtered back through the Coallescer so that the oil particles will be drained out of the separator tube to be discharged into the sea, but previously through an oil content detector (Oil Content meter) to prevent pollution at sea.
3. The process of removing oil from the collection chamber in the separator tube.
After undergoing the process of separation between the sewage water and the oil content in the tube, the oil content collected in the oil collection chamber will continue to increase as long as the bilge pump is still working, until when the oil level in the chamber is high, the oil level controller will work so activate the solenoid valve to open. Then that’s when the oil collected in the collection room will flow to the Waste Oil tank, with the issuance of oil in the tube, then the level of oil will decrease again so that the sensor will activate the solenoid valve to close. In the post before there was already a post about the oil purifier the ship is also a separator tool, but in this post you will know the difference between the oil purifier and the oil water separator “ows” the ship.
Oil Discharge Monitoring and Control System
• In accordance with the requirements for ships installed with Oily Water Separator (OWS) equipment with filters up to 100 ppm must be equipped with additional equipment called the Oil Discharge Monitoring and control system (ODM).
• ODM can detect oil content until it meets the requirements that the water produced has a maximum oil content of 15 ppm.
• Equipment to detect oil content in ODM is called oil content meter. If the oil level exceeds 15 ppm then the alarm system on the Oil content meter will sound or light up as a warning.
• The work system of ODM is to give a warning before the discharge of water to the sea if the oil content exceeds 15 ppm and then the water will be filtered / refined.
• Some ODMs are equipped with automatic stopping device valves (Automatic stopping devices) that work automatically. This valve will accept sensors and close automatically when the oil level exceeds 15 ppm.
• ODM is equipped with an oil content recording facility. This oil content recorder will graphically show the level of oil content before disposal. So if the reading shows that the oil content exceeds 15 ppm, the disposal is immediately stopped.
• For operation of the ship must be equipped with a user manual, a picture of the installation of pipes and valves. For those who are equipped with a recording device (recording device) must be equipped with backup paper.
• ODM equipment is also installed on the 15 ppm OWS system with the same working principle.
Disposal of Oil Remains / Disposal Of Oil Residues
• In accordance with the requirements, the ship must be equipped with facilities for the disposal of the remaining residual oil. This equipment must also be adjusted to the amount of residual oil produced.
• Incenerator, is a special tool to burn the remaining dirty oil produced from OWS that can no longer be used.
• Boilers, a type of boiler that can burn residual oil.
• Special tank that can mix the remaining oil with other fuels. Special tank to collect dirty oil which will then be disposed of on land.
• Tanks for storing dirty oil are called sludge tanks, these tanks are special tanks available on board. These tanks must be clearly and precisely located (generally around the engine room) and have sufficient capacity and recorded contents at all times.
• The tank must have a special drain pipe installation, the drain pipe is connected to a special drain pipe which has international standard size. (Standard Discharge Connection).
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