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Marpol Waste Collection Vessel

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The MARPOL Convention is the leading international convention covering the prevention of pollution of the marine environment by ships from operational or accidental causes. It combines two treaties adopted in 1973 and 1978 and updated by amendments.

It includes regulations to prevent and minimize pollution from ships – accidental pollution and routine operations – and currently contains six technical Annexes.

MARPOL 73/78 Annex I Regulations to prevent pollution by Oil and petroleum-driven wastes ( Bilge, Sludge, Slop, Waste oil, Polluted ballast, etc.)

MARPOL 73/78 Annex IV Regulations for preventing pollution by sewage and wastewater.

MARPOL 73/78 Annex V Regulations for preventing pollution by garbage and trash. Governments must ensure adequate reception facilities at ports and terminals for the reception of MARPOL 73/78 Annex IV, V.

Mavi Deniz designed a unique MARPOL CAT waste collection vessel for MARPOL 73/78 requirements to collect wastes from (other ships, including Passenger, Cruiser Ships, Cargo Vessels, and Oil/Chemical Tankers) around the clock and time-saving while waiting at anchorage, during bunkering, or just for disposing of waste.

International Maritime Organization announced a strategy to reduce greenhouse gas (GHG) emissions to zero by the end of this century, and marine environmental regulations have been tightened worldwide. The implementation of emission control areas has begun to affect vessel operations. Mavi Deniz has successfully started new emission control regulations by developing dual-fuel solutions and cleaner green power technologies. Mavi Deniz’s Green Power Options; Solar Energy System, Battery Power System, Hydrogen Fuel Cell System, and LNG System can fully integrate into Marpol Wate Collection Vessel, including deck equipment propulsion system.

Marpol Waste Collection Vessel Green Power Options

  • Powered by Solar Energy System
  • Powered by Battery Power System
  • Powered by Hydrogen Fuel Cell System
  • Powered by LPG System


  • Marpol Waste Collection Vessel is based on a robust steel hull.
  • Marpol Waste Collection Vessel has Twin Engines.
  • Hydraulic knuckle crane for equipment handling operations.
  • Debris / Garbage reception & storage
  • Oily water reception. ( sludge, slop, bilge, sewage, dirty ballast water & oily waste liquids )
  • Sewage Treatment Systems & Oily Water Separator Systems
  • Fire Fighting
  • Accommodation with a cabin for the crew, WC & Bathroom, or a workshop can be provided.


1  ) Oil and Oil delivered wastes under the scope of Marpol 73/78 Annex-I, which arise due to normal activities of vessels;

  • Bilge: percolating water and oily wastewater formed in the machine and auxiliary machine sub-tanks of vessels, coffer dams, warehouses, or similar vessel sections.
  • Sludge: sludge is composed of residue and oily sediments formed in engine rooms, vessels’ fuel tanks, or oil tankers’ cargo tanks.
  • Slop: tank washing water formed due to vessels’ cargo tanks and oily water wastes accumulated in slop tanks.
  • Dirty ballast: ballast water that causes the appearance of Oil, Oil derived stains, or oil stains above water or at the coastline or creates color changes above or underwater or causes accumulation of solid materials/emulsion in suspension when released from the vessel to sea.
  • Waste oil: dirty oils that lose their nature after being used by the vessel’s primary and auxiliary machines. Solid sludge: oil sludge solidified at the bottom of the oil tank of the ship.

2  ) Wastewater/sewage under the scope of Marpol 73/78 Annex-IV: sewage: wastes from toilets, urinals, and toilet scuppers, liquid wastes from lavabo, scuppers, and basins in the infirmary, dispensary, and hospitals, discharge from areas where live animals or other wastewaters are mixing with these.

3  ) Garbage/trash wastes under the scope of Marpol 73/78 Annex-V: trash: municipal and operational solid wastewaters formed due to the vessel’s usual operation and under the range of Marpol 73/78 Annex-V.

  • Category-1: plastic
  • Category-2: floating; piling tools, coating or packaging materials
  • Category-3: ground; paper products, scraps, glass, metal, bottles
  • Category-4: paper products, scraps, glass, metal, bottles, pottery
  • Category-5: food wastes
  • Category-6: kiln ashes, excluding the ones composed of heavy metal wastes or toxic plastic products

We design one of the most modern waste collection vessels in the world. We develop and improve MARPOL CAT floating slops reception and treatment vessels despite this.

Length20 m26 m30 m40 m55 m
Beam6 m6 m8 m8.5 m10 m
Draft1.3 m1.5 m2.2 m3.2 m3.5 m
Hull TypeSteel | Mono Hull + Catamaran
OptionalIce Class
Garbage Tank10 m³10 m³10 m³10 m³10 m³
Oily Water Storage Tank100 m³150 m³200 m³500 m³1000 m³
Fresh Water Tank2 m³2 m³4 m³5 m³6 m³
F/O Tank4 m³6 m³8 m³10 m³12 m³
Engine2 x 250 HP2 x 300 HP2 x 350 HP2 x 400 HP2 x 650 HP
Speed10 knot12 knot12 knot12 knot12 knot
Sewage Treatment Plant25 liters/hr50 liters/hr80 liters/hr100 liters/hr120 liters/hr
Oily Water Separator1 x 0.5 m³ / hr1 x 1 m³ / hr1 x 1.25 m³ / hr1 x 1.5 m³ / hr1 x 2 m³ / hr
ElectronicsRadar, GPS / Echo-sounder / Compass, VHF
Jib Crane1 x Hydraulic Crane - 360º - 6 m | 7m | 8m | 10m - capacity 500 kg | 1000 kg
Rescue Device1 x Rescue Boat / 4 x Life jacket / 4 x Life Buoy / 4 x Fire Extinguisher
PaintEpoxy coating underwater hull, decks & superstructure with a lifetime of about 3 years.
Special equipmentSearchlight & Deck lights and Window wiper, A signal mast fitted with Navigation Lights, Siren and horn is fitted atop, Boom reel mounting points.
Accommodations1 x WC / shower. A fully glazed wheelhouse high quality fit-out which includes seats.
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