DESMI Ocean Guard’s CompactClean Ballast Water Management System (BWMS) has received an amended US Coast Guard (USCG) type-approval certificate with just two hours minimum hold time restriction, as well as approval of installation in hazardous areas
Reducing the minimum required hold time to just two hours in all salinities and water temperatures sets a new standard for non-chemical-based BWMS under the US rules, and this was achieved without changing anything in the BWMS or how it operates. Minimum hold time is the shortest allowable time that ballast water must be kept in the ballast tanks between the ballast uptake and discharge operations.
DESMI Ocean Guard chief executive Rasmus Folsø explains. “The performance of the CompactClean BWMS is so superior that, unlike other UV-based BWMS, we have not had to reduce the flowrate in the system to achieve the shortest minimum required hold time in the industry of just two hours. Likewise, the two hours hold time is achieved without introducing any new limitations on the UV intensity applied in the UV reactor.”
“It is exactly the same BWMS operated in exactly the same way as previously, with just one operation mode used globally. This significantly simplifies the operation as there is no need for knowing the deballast location and the expected hold time of the ballast water at the time of ballast water uptake, to determine if the BWMS should be operated in IMO or US mode depending on the discharge location, or in longer or shorter hold time mode. In fact, we have just managed to considerably simplify the ballast water operations of ships in global trade!”
The amended USCG type-approval certificate now covers all the ATEX and IECEX certified versions of CompactClean BWMS, enabling these to be installed in hazardous areas on board oil, gas and chemical tankers flying both US and non-US flags.
“With the so far unmatched versatility of the CompactClean BWMS, enabling installation on board any ship type and allowing treatment and discharge of all kinds of ballast water anywhere in the world, the CompactClean BWMS is leading the way. Add to this the smallest footprint in the industry, simplicity, user friendliness, ease of installation and credible long-term global support and service from a company with close to two centuries of history, and you have the explanation why CompactClean is being selected by more and more customers,” said Mr Folsø.