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MEM38

Marine Engineers Messenger Volume 2 Issue 38

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living organisms, “are ineffective in high<br />

salinity waters and while an accepted<br />

method for testing surface waters, these<br />

rudimentary solutions do not provide a<br />

reliable tool with which to test the efficacy<br />

of ballast water treatment systems”.<br />

Marc Raymond, Managing Director, aquatools,<br />

said: “Our test protocol is based on the<br />

bioluminescence principle, whereby the<br />

proportion of light correlates exactly with<br />

the number of Adenosine Tri-phosphates<br />

found in ballast water. Other luminometers<br />

measure the light but these use a very<br />

rudimentary measurement ‘pen’ to take a<br />

small sample of the water. This is ineffective since the reagent required to extract the ATP<br />

from the organism is heavily diluted and does not provide an accurate measurement from<br />

which to assess efficacy across the entire spectrum specified in the IMO D2 parameters list.<br />

“We have developed a unique method for extracting the ATP from the cell walls of all<br />

marine organisms, including those with hard shells, in a process that takes just five minutes. Our method<br />

analyses each fraction: >50μm (most often zooplankton), 10-50μm (most often phytoplankton) and bacteria,<br />

which other ballast water monitoring systems struggle to achieve.”<br />

“While much focus has been given to the ballast water treatment system, there has been little discussion<br />

about enforcement,” said Bonamin. “Existing ballast water testing methods could mean that incorrect<br />

measurements are taken, resulting in heavy financial penalties for shipowners. We now have the technology<br />

available to provide 100% indicative but accurate readings more or less immediately, without having to send<br />

samples off to laboratories.”<br />

aqua-tools’ ATP 2G technology can be used onboard vessels and by enforcement agencies to rapidly analyse<br />

treated waters onboard vessel during the deballasting process, providing results in less than 40 minutes.<br />

SGS Group now has agreements in place to implement ballast water compliance verification tests and<br />

certification in seven countries, with the service available in USA, Canada, South Africa, Germany, Italy, Spain,<br />

Belgium, the Netherlands, Finland, UAE, India, China, South Korea, Australia, Thailand and Taiwan.<br />

The 30 Rapid ATP Ballast Water test kits will now be distributed to SGS Group offices in all those countries<br />

by which it has been contracted to carry out ballast water verification tests.<br />

USCG TYPE APPROVAL TESTS COMPLETE FOR EVOQUA SEACURE SYSTEM<br />

SeaCURE Ballast Water Management System (BWMS), the electrochlorination based solution pioneered by<br />

Evoqua Water Technologies, has successfully completed all biological<br />

efficacy US Coast Guard Type-Approval tests.<br />

Tests were carried out under the supervision of classification<br />

society Lloyd’s Register and the independent laboratory NSF<br />

International will now compile test data for submission to the<br />

USCG for imminent approval.<br />

Matt Granitto, Business Manager, Ballast Water, said: “We<br />

are delighted that the SeaCURE system has successfully<br />

completed and exceeded all testing requirements and<br />

protocols for USCG certification. It has been a lengthy process<br />

but the importance of these tests and USCG Type Approval<br />

cannot be undervalued.<br />

“The testing regime we opted for was the most stringent<br />

because it uses natural organisms in natural environments<br />

over those that are manufactured. By using real organisms, it<br />

takes a lot longer as nature doesn’t always have sufficiently<br />

high organism counts.”<br />

All testing was carried out by NSF International. The first<br />

five tests in brackish waters took place in Baltimore<br />

harbour in the summer of 2015 by NSF partner Maritime<br />

Environmental Resource Centre (MERC). Another partner<br />

laboratory, Great Ships Initiative (GSI), then carried out five<br />

freshwater tests in the summer of 2016, with the final set of land<br />

10

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