Tanker Notes ||
Container Ship Operations ||
Ocean Navigation ||
Collection, storage, processing and disposal of ship generated garbage
Every ship of 100 gross tonnage and above, and every ship which is certified to carry 15 or more persons, must have a Garbage Management Plan.
The plan should be adapted for individual ships and must be available in the working language of the crew. The Master is to ensure that each new member of the crew receives training in the Garbage Management Plan.
The plan is to be regularly reviewed and the Master should check that the plan is being correctly adapted as part of his weekly inspections.
The ship's garbage is made up of distinct categories, some of which are addressed in MARPOL 73/78. Other categoriesmay be addressed locally, nationally or regionally, eg. domestic, cargo associated, food and maintenance waste.
Each category should be evaluated separately to determine the best waste management.
‘Operational wastes’ means all solid waste (including slurries) not covered by other MARPOL Annexes that are collected onboard during normal maintenance or operations of a ship, or used for cargo stowage and handling. These include cleaning agents and additives contained in cargo hold and external wash water
Under Annex V, garbage means all kinds of food wastes, domestic wastes and operational wastes, all plastics, cargo residues, cooking oil, fishing gear and animal carcases generated during the normal operation of the ship.
For centuries seafarers threw their garbage over the side, probably with little harm done to the environment. The waste products of earlier days were mostly natural materials, biodegradable, and food for the creatures of the ocean. By contrast, modern packaging products use materials which persist in the marine environment and therefore require special processing on board a ship before disposal.
In recent years, pollution of the marine environment (which has both biological and economic repercussions) has become an increasingly sensitive issue and increased public awareness of problems has prompted governments around the world to enact stricter laws to try and protect the planet.
All ships over 400 tons and above or certified to carry 15 persons or more must implement a planned garbage management system and maintain a Garbage Record Book. Annex V of MARPOL 73/78 designates what waste can and cannot be dumped at sea. It also introduces specific restrictions in certain areas of the worlds oceans, designated as Special Areas where the marine life is endangered.
The ISM Code (1.2.1), too requires the ship to take measures to avoid damage to the environment .
The intent of the Garbage Management Plan is to provide a systematic approach to the enforcement and control of garbage by the ships as required by MARPOL 73/78 Annex V / Regulation 9 (2).
Instructions are contained in such plan for ships crew to follow, in regards to the collection, storage, processing and disposal of ship generated garbage including the use of equipment on board.
Efforts should be made to minimize generation of garbage as well as its disposal at sea, and should be landed wherever possible . In particular , cans/metal/glass (stowed in blue bins) should be landed wherever recycling facilities exist , instead of disposing at sea (even when permitted by MARPOL).
The requirements of garbage management plan should be discussed with all new crew members during their familiarisation training. This will ensure that all personnel are aware of the statutory requirements and fully understand their duties in relation to the plan.
The vessel should have signs posted, stating what substances can be disposed of overboard and the required distances from shore, however no disposal should be made without the vessels' position being confirmed and the officer of the watch's approval being sought. This is especially critical when the vessel is navigating near to the coast or within designated special areas.
The garbage storage area should be positioned so as to ensure that the bins are protected from the sea. Only cargo residues which have not been classified as a marine pollutant should be discharged overboard. The cargo residues should only be in small quantities, therefore every effort should be made to clean up and dispose of the residues whilst the vessel is in port or should, if practicable, be held onboard for disposal at an appropriate reception facility.
When cargo residues are disposed of overboard, an entry must be made in the garbage record book for a category 4 waste. The entry must include the start and stop positions and an estimate of the quantity discharged.
Whilst reporting a breach of statutory regulation is likely to result in the vessel undergoing a follow-up investigation, failure to promptly report such a breach to the appropriate authority could result in a detention, a fine or withdrawal of certification.
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