Page 55: of Maritime Logistics Professional Magazine (Q4 2012)

Impact on tank coatingsA corrosion testing program under- taken by GL Noble Denton for the BALPURE system was completed in March 2011. Seawater treated by the BALPURE system with higher than normal levels of free chlorine showed no measurable effect to the normal life of ballast tanks, coatings and associated Þttings. Letters of conÞrmation from two paint/coating suppliers attest to the non-corrosive nature of the BALPURE, which is approved for use on these coat- ings up to a residual concentration of 8 ppm. Scalability, Sizing, Vessel Types BALPURE systems are available to treat up to 5,000 m3/hour of ballast wa- ter ß ow with custom units available to treat higher ß ow rates up to 20,000 m3/ hour. BALPURE is targeted for larger tankers, bulk carriers, and LNG vessels with higher ß ow rates /larger capacity to take advantage of the lower per MT operating /investment costs. The space footprint on intended vessels is not large Ð a BP-5000 with 10 times the capac-ity of a BP-500 requires just 2.5 times the space required. BALPURE has been sold across many different vessel types ranging from bulk carriers, to VLCCs, offshore barges, pipelay vessels and LNG carriers. Reference list Severn Trent De Nora has installed/ sold 18 systems over the past 15 months since receiving IMO Type Approval in July 2011. 5 have been installed. All of the contracts have been for new builds. www.severntrentdenora.com BALLAST WATER TECHNOLOGY The Time for Talk ? Almost Over ? ÒThe IMO convention will likely be ratiÞ ed within one yearÕs time. It is time for ship owners to start installing.Ó ThatÕs the take of Per Warg, Business Manager for Alfa LavalÕs PureBallast bal- last water treatment system. Another vendor told MarPro (on background), ÒBy the time most get around to buying and install- ing systems, the price will have gone through the roof.Ó While it is hard to say if either one is right, one thing is certain: the long road to a BWT standard and subsequent type approval for tech- nologies is at an end. Shipowners who do not act quickly may Þ nd that they will pay too much for system(s) that are not read- ily available. Yet, itÕs clear that suitable technologies exist and are now available. Hundreds of systems have been sold into the market. Tens of thousands more will follow. You have to comply. When will you do it?www.maritimeprofessional.com | Maritime Professional | 55MP #4 50-63.indd 55MP #4 50-63.indd 5511/12/2012 10:10:26 AM11/12/2012 10:10:26 AM