the IHS Ballast Water Guide - RWO Marine Water Technology

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IHS Fairplay Solutions Guide to Ballast Water Treatment Systems Sponsored by Convention timeline The convention’s timeline has already been amended once because of the lack of signatures. However, although the IMO has indicated that no further dispensations will be granted, the convention is not yet in force. By 1 January 2012 all newbuildings should have been delivered with a ballast water treatment system fi tted. From that date, vessels built since 2009 and falling within the rules must install a system by their next drydocking. All vessels above 400gt that carry ballast water must have a system in place by the end of 2016. Between 50,000 and 70,000 vessels will have to install ballast water management systems before 2019. For the 2004 International Ballast Water Convention to come into full force, it must be ratifi ed by 30 countries. This goal has been achieved. As of February 2012, 33 countries representing 26.46% of world tonnage have signed the convention, but it will only enter into force 12 months after the signatories’ combined merchant fl eets constitute at least 35% of the gross tonnage of the world’s merchant shipping. If any of the compliance dates within the convention pass before it is ratifi ed they will be applied retrospectively if and when that target has been achieved. Despite mounting pressure from both the green lobby and IMO itself, the BWM Convention has not yet been fully ratifi ed and cannot enter into force without more signups. 2012 2 2016 2 2019 2 6 © IHS Global Limited 2012 Photo: Shutterstock 006_009_BW1204.indd 6 21/03/2012 18:28:26
k Sponsored by IHS Fairplay Solutions Guide to Ballast Water Treatment Systems The countries that have offi cially declared their support are Albania, Antigua & Barbuda, Barbados, Brazil, Canada, Cook Islands, Croatia, Egypt, France, Iran, Kenya, Kiribati, Lebanon, Liberia, Malaysia, Maldives, Marshall Islands, Mexico, Mongolia, Montenegro, the Netherlands, Nigeria, Norway, Palau, Republic of Korea, Saint Kitts and Nevis, Sierra Leone, South Africa, Spain, Sweden, Syrian Arab Republic, Trinidad & Tobago and Tuvalu. Under the IMO regulations there are two treatment standards. These are designated D1 and D2. D1 is a ballast water exchange (BWE) rather than treatment standard. It calls for 95% of the water to be exchanged 200nm off shore in at least 200m of water or for a pump-through of three times the volume of each tank. Because no treatment of the water is involved it is seen as a temporary method of ensuring species transfer is limited, if not eliminated. The D2 standard, applicable to newbuildings and eventually to all aff ected existing ships under a rolling programme, requires the installation of ballast-water Table 1: IMO Ballast water treatment compliance schedule Ballast capacity (m 3 ) Construction date < 1,500 < 2009 D1 or D2 ≤ 2009 D2 ≥ 1,500 or ≤ 5,000 < 2009 D1 or D2 ≤2009 D2 treatment systems. Systems must be typeapproved and capable of meeting a cleaning standard that results in fewer than 10 viable organisms per cubic metre if the organisms are 50μm or larger, or 10 viable organisms per millilitre if they are smaller than 50μm. The convention document has a number of associated guidelines, some of which are now obsolete. However, operators should be aware of guideline G4, which covers practical matters such as development of the ballast water management plan that all ships will need to have on board. Type-approval of systems follows one of two paths depending on whether or not the treatment process makes use of an ‘active substance’. Active substances – chemical or biological biocides – used in the treatment process must also be approved by the IMO. All systems must undergo tests at a shore testing station and on board vessels under operational conditions before gaining approval. The approval process for a system that does not use an active substance is laid down in guideline G8; for systems that do the procedure is in guideline G9. First intermediate or renewal survey, whichever occurs fi rst after the anniversary of the date of delivery in the year indicated below 2009 2010 2011 2012 2013 2014 2015 2016 2017 > 5,000 < 2012 D1 or D2 ≤ 2012 N/A D2 © IHS Global Limited 2012 7 006_009_BW1204.indd 7 21/03/2012 18:28:29 D2 D2 D2
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