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Uscg Approved Ballast Water Treatment Management System
USCG Approved Ballast Water Treatment Management System Marine Ballast Water Management System
For a ship constructed before 2009 or a ship constructed in or after 2009, but before 2012, with a Ballast Water Capacity of 5,000 cubic metres or more, " by 2014" and "by 2016" indicated in the column of "Date of mandatory implementation of D-2 standard" of the above table means that the ship shall meet D-2 standard not later than the first intermediate or renewal survey, whichever occurs first, after the anniversary date of delivery of the ship in the year of 2014 or 2016.
Requirements of D-2 standard
(1) Less than 10 viable organisms per cubic metre greater than or equal to 50 micrometres in minimum dimension;
(2) Less than 10 viable organisms per millilitre less than 50 micrometres in minimum dimension and greater than or equal to 10 micrometres in minimum dimension;
(3) Discharge of the indicator microbes shall not exceed the specified concentrations described below:
1. Toxicogenic Vibrio cholerae (O1 and O139) with less than 1 colony forming unit (cfu) per 100 millilitres or less than 1 cfu per 1 gram (wet weight) zooplankton samples;
2. Escherichia coli less than 250 cfu per 100 millilitres;
3. Intestinal Enterococci less than 100 cfu per 100 milliliters.
In order to meet D-2 standard, ballast water management systems which are approved by the Administration in accordance with Guidelines for Approval of Ballast Water Management Systems (MEPC 174(58)) must be installed on ships.
Irrespective of newbuildings or existing ships, if the power load of ballast water treatment equipment has not been considered in the capacity of main generating equipment on board the ship during construction, it is likely that the capacity of main generating equipment will fail to comply with requirements of SOLAS after the installation of ballast water treatment equipment, and therefore shipowners should
make arrangement and preparation as early as practicable. e.g., installation space of ballast water treatment equipment, the power of ballast water treatment equipment reserved in the main generating equipment, etc.
Deyuan Marine provide IMO approved BWMS for 11 years, welcome your contact for photos, solutions according to the projects.
FAQ of BWMS
1. Pls inform us the ship type, e.g cargo ship or oil tanker. If oil tanker, do you need explosion proof type?
2. About Way of Treatment, do you have any ideas and special requirements?
1) Mechanical method (filtration or separation), big capacity with big size of BWMS requires a large storage capacity.
2) Physical method (UV radiation, De-Oxygenation), suitable for low water turbidity, will be better if the ballast tank has an air tight ventilatory system, a few days required for treatment.
3) Chemical and Biological method (electrolytic process), more electricity consumption, sometimes the electrolytic seawater corrodes the hull, so shall use the neutralizing agents properly.
4) Combination some of above technology to overcome the shortcomings.
3. Except the emergency pump, what's the Q'ty of ballast pump and capacity of each pump?
4. What kind of IACS class approval certificate is required?
5. If possible, pls offer the layout drawing of ballast tank, engine room (with its electrical diagram).
