BallastWaterManagementPlan

1、ballast water management planname of ship:imo number:dnv id:this bwm plan has been written by use of a dnv template (bwm-01)18introductionballast water is essential to control trim, list, draught, stability, or stresses of the ship. however, ballast water may contain aquatic organisms or pathogens w

2、hich, if introduced into the sea including estuaries, or into fresh water courses, may create hazards to the environment, human health, property or resources, impair biological diversity or interfere with other legitimate uses of such areas.the selection of appropriate methods of ballast water manag

3、ement should take into account the need ensure that ballast water management practices used to comply with this convention do not cause greater harm than they prevent to the environment, human health, property or resources of any states and the safety of ships.this plan is written in accordance with

4、 the requirements of regulation b-1 of the international convention for the control and management of ships ballast water and sediments, 2004 (the convention) and the associated guidelines.the purpose of the plan is to meet the requirements for the control and management of ships ballast water and s

5、ediments in accordance with the guidelines for ballast water management and the development of ballast water management plans resolution mepc.127(53) (the guidelines). it provides standard operational guidance for the planning and management of ships ballast water and sediments and describes safe pr

6、ocedures to be followed.this plan has been approved by the and no alteration or revision shall be made to any part of it without the prior approval of .this plan may be inspected on request by an authorized authority.ship particularsvessel name: imo number:gross tonnage.: xxxdimensionslength b.p: xx

7、xbeam.: xxxdeepest ballast draughts (normal/heavy weather).: xxx / xxxballast capacitiestotal ballast water capacity: xxxdesignated ballast water management officer: xxx(rank of officer)main ballast water management method(s) d-1 (ballast water exchange): d-2 (ballast water treatment): revision hist

8、oryindexintroductioniship particularsiirevision historyiiiindexivpurpose11description of the ballast system22operation of the ballast water management system32.1ballast water treatment 32.2ballast water exchange 52.3precautionary practices123sediment management133.1general requirements133.2disposal

9、of sediments to shore133.3disposal of sediments at sea133.4details of the sediment management system onboard 144ballast water sampling154.1general154.2sampling for compliance with the exchange standard (regulation d-1)154.3sampling for compliance with the performance standard (regulation d-2)165meth

10、ods of communication185.1action to be taken by the vessel where coastal state has specific procedures for discharge of ballast water185.2action to be taken by the vessel where coastal state has no specific procedures for discharge of ballast water186duties of the ballast water management officer197c

11、rew training and familiarization208recording requirements21appendices22purposethe ballast water management plan aims to assist governments, appropriate authorities, ships masters, operators, owners, port authorities as well as other interested parties, in preventing, minimising and ultimately elimin

12、ating the risk of introducing harmful aquatic organisms and pathogens from ships ballast water and associated sediments while protecting ships safety.treatment of ballast water is deemed as an acceptable method of reducing the invasion of harmful organisms.good record keeping is critical to the succ

13、ess of a sound ballast water management program. the appointed ballast water management officer is responsible for ensuring the maintenance of appropriate records and that the ballast water management and treatment procedures are followed and recorded.it is the owners/managers or masters responsibil

14、ity to regularly review the plan and ensure that the information contained therein is accurate and updated.1 description of the ballast systemballast water is essential to control trim, list, draught, stability or stresses of the ship.the ships ballast system consists of the following:ballast tankst

15、ank #location (frames)capacity m3pumps availableemergency / heavy weather tanks tank #location (frames)capacity m3pumps availablepump datapump #rated capacity m3/hrtypelocationtreatment system nametypeoperationpumps availablecapacitylocationfollowing plans or drawings can be found as follows:appendi

16、x 11. ballast tank arrangement & capacity plan.2. ballast water piping & pumping arrangement, incl. air pipes and sounding arrangements.3. plan & profile of the ship or schematic drawing of the ballast arrangement.4. diagrams/drawings of sampling and access points in pipelines and tanks.ballast wate

17、r treatment system operations manual refer to the specific operational and maintenance manual of the treatment system. 2 operation of the ballast water management systemballast water management system (bwms) means any system which processes ballast water such that it meets or exceeds the ballast wat

18、er performance standard in regulation d-2. the bwms includes ballast water treatment equipment, all associated control equipment, monitoring equipment and sampling facilities.ballast water exchange can also be used for this vessel but only to meet the standard described in regulation d-1. the applic

19、able methods are: sequential method, flow through method and dilution method or a combination of those. ballast water exchange will be phased out as an acceptable method for complying with the convention, depending on ballast water capacity and date of construction of the vessel. therefore ballast w

20、ater treatment will be the only remaining option for complying with the convention.during normal conditions the treatment system is to be used for ballast water operations, however it is possible to bypass this and then ballast exchange can be conducted. it is the responsibility of the ballast water

21、 management officer to decide which method is to be used (e.g. in port states where discharge of treated ballast water is not a requirement.)it is the masters responsibility to control the safety of the vessel at all times. this includes evaluation of stability and longitudinal strength throughout t

22、he sequential exchange sequence.the sequence included in this document is only one example of an acceptable sequence for one specific loading condition.2.1 ballast water treatment ballast water treatment equipment means equipment which mechanically, physically, chemically, or biologically processes,

23、 either singularly or in combination, toremove, render harmless, or avoid the uptake or discharge of harmful aquatic organisms and pathogens within ballast water and sediments. ballast water treatment equipment may operate at the uptake or discharge of ballast water, during the voyage, or at a combi

24、nation of these events.it must be ensured that the ballast water management system installed is approved in accordance with regulation d-3 of the convention.the system should only be operated in accordance with the system design criteria and manufacturers operational and maintenance instructions. re

25、ference made to section 5 for safety considerations and appendix 2 for the manufacturers operation and technical manual.when the system encounters malfunctions or failure, these are to be recorded in the ballast water record book.2.1.1 treatment equipment detailsthis part must include the following:

26、- name of the manufacturer- type and model of the equipment installed- reference to the type approval certificate- list of the major components of the treatment system2.1.2 operation of the treatment equipmentthis ballast water treatment equipments capacity is designed for one/two/all ballast pumps.

27、only one/two pump(s) can be used at a time for ballasting/deballasting, except in cases of emergencies. this part must include simple and important parameters for the operation of the equipment, for example:- flow rate range from a minimum acceptable and up to the treatment rated capacity- normal op

28、erating parameters (example pressure, flow rate, etc.)- limitations of the treatment equipment, for example: minimum holding time in the tanks for systems using active substances minimum uv transmittance the system manages to treat permissible salinity, temperature, ph etc.- simple instructions for

29、steps to be taken (reference to the specific location for each of the bullet points below in the makers manual is acceptable): before ballasting operations start for ballasting operations for stopping ballasting operations before de-ballasting operations start for de-ballasting operations for stoppi

30、ng de-ballasting operations for shutdown of the treatment system- instructions on how to deal with untreated water remains in the system: for the piping between the sea chest and the treatment unit for water remains in the ballast tanks after de-ballasting (applicable only for systems approved by tr

31、eatment on both ballasting and de-ballasting)2.1.3 control and monitoring equipmentthe control equipment automatically monitors and adjusts necessary dosages or intensities or other aspects of the ballast water management system.the control equipment should be able to store data for at least 24 mont

32、hs and should be able to display or print a record for official inspections as required. in the event the control equipment is replaced, means should be provided to ensure the data recorded prior to replacement remains available onboard for 24 months.the control equipment of this treatment system co

33、nsists of the following:- list all major components like plc panels, electrical cabinets etc.2.1.4 safety and emergency proceduresthe ballast water management system should not contain or use any substance of a dangerous nature, unless adequate arrangements for storage, application, mitigation, and

34、safe handling are provided to mitigate any hazards introduced thereby.for this equipment, the safety arrangements are referred to in .the following personal protection equipment (ppe) is provided in case of emergency:ppe typelocationnumberin the case of spillage or leakage of chemicals or gases, con

35、sult the procedures outlined in .the following chemicals and/or gases are present during treatment either as by-products or as treatment media:chemical or gashazardsupdated msds sheets for each chemical or gas used or stored is to be kept onboard.2.1.5 maintenancethe maintenance schedule for the tre

36、atment system is .refer to .2.2 ballast water exchange there are three methods of ballast water exchange which have been evaluated and accepted by imo. the three methods are the sequential method, the flow-through method and the dilution method. the flow-through method and the dilution method are co

37、nsidered as pump through methods.regulation b-4 of the convention requires that vessels shall conduct ballast water exchange: at least 200 nautical miles from the nearest land and in water at least 200 metres in depth; if this is not possible at least 50 nautical miles from the nearest land and in w

38、ater at least 200 metres in depth; or in areas designated by the port state.all local and/or national regulations should be taken into consideration as they may specify other depths and distances from land.a ship shall not be required to deviate from its intended voyage or delay the voyage in order

39、to comply with any particular requirement as stated above. the voyage should be planned taking into account when ballast water exchange in accordance with the above criteria can be carried out.because of the possibility that partially exchange may encourage re-growth of organisms, ballast water exch

40、ange should only be commenced in any tank if there is sufficient time to complete the exchange to comply with the standard in regulation d-1 and the ship can comply with the distance from land and minimum water depth criteria in regulation b-4. as many complete tanks should be exchanged to the stand

41、ard in regulation d-1 as the time allows, if for any tank the standard in regulation d-1 can not be fully met the exchange should not be commenced for that tank.in addition, if the master reasonably decides that an exchange would threaten the safety or stability of the ship, its crew or passengers b

42、ecause of adverse weather, ship design or stress, equipment failure, or any other extraordinary condition he is not required to comply with above requirements.when a ship is required to conduct ballast water exchange and does not do so in accordance with these requirements, the reasons shall be ente

43、red in the ballast water record book.the applied ballast water exchange methods for this ship are the following:2.2.1 sequential method 2.2.1.1 generalthe sequential method is a process by which a ballast tank intended for the carriage of ballast water is first emptied and then refilled with replace

44、ment ballast water to achieve at least a 95 per cent volumetric exchange.all of the ballast water in each tank should be discharged until suction of the pumps is lost and stripping pumps or eductors should be used if possible, to avoid a situation where organisms are left in the bottom of the tank,

45、the tank is then refilled with new water rich in oxygen which might allow the re-emergence of new organisms.a detailed step by step operational description of the ballast exchange sequence used should be consulted prior, during and after the exchange in addition to the safety considerations addresse

46、d below. at the same time ballast water management officer should take account of ships position in relation to the land, navigational hazards, ship traffic in the vicinity, current and forecast weather, machinery performance and degree of crew fatigue, before deciding to proceed to the next pair of

47、 steps. if any factors are considered unfavourable the ballast exchange should be suspended or halted.when planning a complete ballast water exchange sequence, the following can be used as guidance: the sequence is to be divided into steps; each step represents emptying or (re)filling one tank or pa

48、ir of tanks and is to be run as any other loading condition on the loading computer. maximum free surface moment for the tanks being emptied or refilled must be taken into consideration; amount of consumables to be kept constant; if necessary, some tanks may be emptied first and remain empty during

49、completion of the exchange of other tanks, and then refilled; heel should preferably remain 2 degrees in all steps and never exceed 5 degrees; and execution may be halted at any time for a shorter or longer periodthe results (printouts) from the loading computer to be summarised in a table clearly s

50、howing for each step: degree of fill for each tank. symbols used:- f indicates full;- s indicates slack;- * indicates empty; and- c indicates changed. gm or vcg (fsm corrected) in meters, to ensure compliance with the stability criteria; draft forward and aft (+trim) in metres; max bm (hog or sag) a

51、s percentage of the max allowable (0.3l - 0.7l); max sf as percentage of the max allowable; length of invisible zone ahead of the bow; propeller immersion ratio (100% is fully immersed); time estimated, based on specific pump capacity.2.2.1.2 safety considerations for the sequential methodrelated to

52、 weather: rough sea: bottom slamming in the fore ship, causing structural damage. this is dependent on the draught forward, and the vessel heading. if slamming is experienced during emptying of some of the tanks, it is possible to stop/reduce this by temporarily altering the vessels heading or reducing the speed. sloshing in tanks, causing deflection/damage to internal tank structure. strong wind: depends upon the wind direction. if the