What is D2 in ballast water management?
The D-2 standard specifies the maximum amount of viable organisms allowed to be discharged, including specified indicator microbes harmful to human health. From the date of entry into force of the BWM Convention, all ships must conform to at least the D-1 standard; and all new ships, to the D-2 standard.
What is TRO mean in a ballast water treatment system?
TRO (Total Residual Oxidant) is a generic term for these kinds of oxidants. Most of management systems control the treatment and discharge concentrations of them with TRO value, measure TRO value in real time, and based on it, control electric power.
What is BW monitoring?
bw-monitor™ measures and reports on the performance of filters and the biological efficacy of the disinfection unit based on biological conditions before and after the BWTS. Our monitoring technology works with all BWTS and can be set up for your specifications and included in your predictive maintenance system.
Who is responsible to maintain the ballast water record book?
Regulation B-2 Ballast Water Record Book 2. Ballast Water record book entries shall be maintained on board the ship for a minimum period of two years after the last entry has been made and thereafter in the Company’s control for a minimum period of three years.
What is d2 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 …
Which valve is closed during ballasting mode?
While taking ballast by gravity during the loaded passage, the inboard line to the tank should be opened up completely, keeping the sea chest valve closed and only then the sea chest valve should be opened.
What is BW process chain?
Definition. A process chain is a sequence of processes that wait in the background for an event. Some of these processes trigger a separate event that can, in turn, start other processes. Use. In an operating BW system, a number of processes occur regularly.
What must be done if the oil discharge monitoring equipment ODME should fail during a ballast voyage?
Upon failure of the ODMCS, discharge of effluent into the sea via the ODMCS must stop, and an entry must be made in the Oil Record Book. At the time of ODMCS failure, the port State of destination, the Classification Society and this Administration must be immediately notified via fax, email or telephone.
How long must the ballast water record book be kept on board?
The Ballast Water Record book shall be retained on board the ship for at least two years after the last entry has been made and thereafter in the Company’s control for a minimum period of at least three years.
What section is survey and certification requirements for ballast water management?
Ships are required to be surveyed and certified (Article 7 Survey and certification) and may be inspected by port State control officers (Article 9 Inspection of Ships) who can verify that the ship has a valid certificate; inspect the Ballast Water Record Book; and/or sample the ballast water.
What are the requirement for ballast exchange?
You must perform the procedure at least 200 nautical miles from land and in waters at least 200 metres in depth, achieving a 95% volumetric exchange in accordance with Regulation D-1. The only way to avoid performing ballast water exchange is to install a type-approved ballast water treatment system.