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Marine Incinerator for Disposal of Ship Generated Waste

Stricter legislation with regard to pollution of the sea, limits and, in some instances, completely bans the discharge of untreated waste water, sewage, waste oil and sludge. The ultimate situation of no discharge can be achieved by the use of a suitable incinerator. When used in conjunction with a sewage plant and with facilities for burning oil sludges, the incinerator forms a complete waste disposal package.

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One type of incinerator for shipboard use is shown in figure below . The combustion chamber is a vertical cylinder lined with refractory material. An auxiliary oil-fired burner is used to ignite the refuse and oil sludge and is thermostatically controlled to minimise fuel consumption. A sludge burner is used to dispose of oil sludge, water and sewage sludge and works in conjunction with the auxiliary burner.

Combustion air is provided by a forced draught fan and swirls upwards from tangential ports in the base. A rotating-arm device accelerates combustion and also clears ash and non-combustible matter into an ash hopper. The loading door is interlocked to stop the fan and burner when opened.

Marine incinerator

Fig:Marine incinerator


Solid material, usually in sacks, is burnt by an automatic cycle of operation. Liquid waste is stored in a tank, heated and then pumped to the sludge burner where it is burnt in an automatic cycle. After use the ash box can be emptied overboard.


Procedure for ships waste via Marine incinerator

Shipboard generated wastes can only be disposed of legally by the following two methods –
  1. Disposal by onboard Incineration
  2. Disposal to a shore based facility
The availability and cost of disposal to shore based facilities and the trading constraints such as time in port, access at tanker terminals and other restrictions have made option “b” less attractive. Oil and sewage sludge incineration may take place in main or auxiliary power plants or boilers, but not whilst in ports or enclosed water.

Waste incineration onboard sea going ships is regulated by IMO MARPOL 73/78 Resolution MEPC.176(40), adopted 10 October 2008 and IMO MARPOL Annex VI, Chapter III Regulation 16 and Appendix IV – Requirements for Control of Emissions from Ships – Shipboard Incineration. All new Incinerators installed onboard a ship on or after 1st January 2000 require compliance with the above regulations and shall have IMO Type Approved Certificate.
It is prohibited to incinerate: Polyvinyl chlorides (PVCs) can only be incinerated in IMO type approved incinerators. In accordance with the Helsinki Convention, all ships are prohibited to use their incinerators whilst in the Baltic Sea area. See Attached “Clean Seas Guide Baltic States” for an overview of the regulations governing this area.

The following conditions must also be met: Incinerators without IMO type approval Certificate or installed before 1st January 2000 can still be used for burning SLUDGE OIL and solid waste provided this does not contain any plastic or synthetic materials. In addition to the above, the following criteria must be established. Please keep this information accessible for the daily use of the staff who are assigned to operate the incinerator.


Related Info:

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    2. The main aim of a compressor, as the name suggests, is to compress air or any fluid in order to reduce its volume. Some of the main applications of compressors onboard ships are main air compressor, deck air compressor, AC compressor and refrigeration compressor. Failure to start or control air compressor can be inconvenient, costly and can carry risks, which need to be managed.....

  2. Where are stabilising fins fitted?- function of it controlling ships motion
    3. Stabilising fins are fitted to ship's sides below the waterline to reduce rolling of the hull by wave action. The fins achieve this by imposing an equal and opposite motion. Retractable fins of aerofoil section use the forward velocity of the ship to create this opposing motion.....

  3. Marine air compressors working principles
    4. Control or instrument air supplies have particular requirements with regard to being moisture and oil free and without impurities. A special type of oil-free compressor may be used to supply control air or it may be treated after delivery from an ordinary air compressor. This treatment results in the air being filtered and dried in order to remove virtually all traces of oil, moisture and any atmospheric impurities.....

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  6. Oily water separator and filter unit for 15 parts per million purity
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  7. Sewage treatment on board- biological and chemical sewage treatment plant
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  8. Incinerator for ships
    9. Stricter legislation with regard to pollution of the sea, limits and, in some instances, completely bans the discharge of untreated waste water, sewage, waste oil and sludge. The ultimate situation of no discharge can be achieved by the use of a suitable incinerator. When used in conjunction with a sewage plant and with facilities for burning oil sludges, the incinerator forms a complete waste disposal package.....




Marine machineries - Useful tags

Marine diesel engines ||Steam generating plant ||Air conditioning system ||Compressed air ||Marine batteries ||Cargo refrigeration ||Centrifugal pump ||Various coolers ||Emergency power supply ||Exhaust gas heat exchangers ||Feed system ||Feed extraction pump || Flow measurement || Four stroke engines || Fuel injector || Fuel oil system || Fuel oil treatment ||Gearboxes || Governor || Marine incinerator || Lub oil filters || MAN B&W engine || Marine condensers || Oily water separator || Overspeed protection devices || Piston & piston rings || Crankshaft deflection || Marine pumps || Various refrigerants || Sewage treatment plant || Propellers || Power Plants || Starting air system || Steam turbines || Steering gear || Sulzer engine || Turbine gearing || Turbochargers || Two stroke engines || UMS operations || Drydocking & major repairs || Critical machinery || Deck machineries & cargo gears || Control and instrumentation ||Fire protection ||Engine room safety ||





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