Types of Ballast Water Treatment (BWT) System Discharge criteria – Any type approved ballast water treatment system shall comply with the discharge criteria regulation D2 and they are; Capacity discharge for organisms; Less than 10 organisms per m3, for organisms> 50 micrometers, Less than 10 organisms per ml, for organisms between 10 and 50 microns.…
Port State Jurisdiction Ships trade internationally and have to call at various ports all over the world. many ships may not call at any of their home ports for a considerable period and it is possible that during a certain period of time Ship’s Certificates may not have been renewed or maintenance in general has…
Coastal State Jurisdiction UNCLOS stipulates the measures a coastal state can take to ensure peace and good order in their territorial sea. Such a provision provides the coastal state with the necessary latitude to take measures to investigate or prevent such occurrences that would be dangerous or detrimental to the coastal state. UNCLOS is careful…
MARITIME JURISDICTION Various manifestations of state jurisdiction can be rendered from the United Nations Convention on the Law of the Sea (UNCLOS) and international law broadly. Three main types of jurisdiction for all states Three main types of jurisdiction activities exist, combined with three categories of maritime states which can have jurisdiction. First there is…
Flag State Flag State refers to the country where a vessel is registered. This country has extra-territorial jurisdiction over its vessels sailing anywhere in the world by virtue of the nationality principle. Every state has the right to sail ships under its flag and thus participate in international navigation. However, this right comes with certain…
– Adequate spare parts for the propelling machinery together with the necessary tools for maintenance and repair shall be readily available for use while at sea for safe operation of the vessel. – The SMS of the vessel shall clearly indicate the minimum number of spares and tools required for the safe operation of the…
Microbial Degradation of lubricating oils onboard One of the vessel I served as Second Engineer suffered a sudden microbial degradation and infestation which caused USD 20000000 on engine repair and a 30 days of laid up with further consequent losses. The ship was about 20 years old with no history of Microbial attack on lube…
Plate type Heat Exchanger Plate type Heat Exchangers are made up from an assembly of identical metal plates pressed together. Such plates have with horizontal or chevron pattern corrugations. Each plate’s working space is protected by a nitrile rubber joint. The plates, which are supported beneath and hung at the top by metal rails on…
9 LITRES FOAM FIRE EXTINGUISHERS (Chemical Foam) Foam is an effective smothering agent, used for liquid fires mainly. It acts by flowing over the liquid fuel oil surface and isolating the fire from the air, also prevents re-ignition due to the foam stability. Usually the foams are of i. Protein Based ii. Synthetic …
Reverse Osmosis Reverse osmosis is one of the most desalination processes that is used widely on most ships and also for household water production. RO plant is considered one of the most successful method of desalination as the size of the system can be reduced or increased to suit the requirement varying from a house…
Alkalinity Treatment For pressures below 20 bar dissolved O2 in the feed does not cause any serious problems so long as the water is kept alkaline However cold feed should be avoided as this introduces large amounts of dissolved O2 are present, for pressures greater than 18.5 bar a dearator is recommended Feed Treatment Chemicals…
Ship Aft End Vibration – A report writing This article is furnished as a report writing to your superindent on Aft end vibration and Suggested remedies, From Second engineer Date: -DD.MM.YY Technical Superintendent XYZ Shipping Let Germany, Sub: Aft end vibration and Suggested remedies, From Second engineer M.T. XXXXX XXX Ref: – Your…
