Is ballast water treatment system mandatory?
Existing ships must meet at least the D-1 (ballast water exchange) standard; they may also choose to install a ballast water management system or otherwise meet the D-2 (discharge) standard but this is not mandatory until the corresponding compliance date.
What regulation is ballast water performance standard?
Regulation D-2 Ballast Water Performance Standard – Ships conducting ballast water management shall discharge less than 10 viable organisms per cubic metre greater than or equal to 50 micrometres in minimum dimension and less than 10 viable organisms per milliliter less than 50 micrometres in minimum dimension and …
What regulation is the ballast water management plan?
BWM convention, regulation B-1 requires the ships to have an approved Ballast water management plan. The ballast water management plan is a ship specific plan and has all the details related to the compliance with BWM convention.
What kind of organisms is the discharge standard of the USCG ballast water management regulations?
(2) For organisms less than 50 micrometers and greater than or equal to 10 micrometers: discharge must include fewer than 10 organisms per milliliter (mL) of ballast water.
Why ballast water treatment is important?
While ballast water is essential for safe and efficient modern shipping operations, it may pose serious ecological, economic and health problems due to the multitude of marine species carried in ships’ ballast water. These include bacteria, microbes, small invertebrates, eggs, cysts and larvae of various species.
What are D1 D2 standards in ballast water management?
The BWM Convention includes two performance standards for the discharge of ballast water: D1 and D2. The D1 standard concerns ballast water exchange, which must be undertaken within open ocean areas, >200nm from land and in seas >200m deep. The D2 standard covers approved ballast water treatment systems.
What are the conditions to be taken before ballast operation?
When planning and carrying out operations with ballast water the following factors must be taken into account: Shear Force and Bending Moment. Stability and Free Surface Effect. Slack Tanks.
What kind of pollution is contained in untreated ballast water?
However, ballast water that brought onboard can contain thousands of aquatic or marine microbes, plants, and animals. This water contains suspended matter, which includes microscopic life forms, coastal sediments, and any associated organisms.
How many types of ballast water treatments are there?
The main types of ballast water treatment technologies available in the market are: Filtration Systems (physical) Chemical Disinfection ( oxidizing and non-oxidizing biocides) Ultra-violet treatment.