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DESMI Ocean Guard Completes Land Testing

Photo: DESMI Ocean Guard

Posted by Michelle Howard

DESMI Ocean Guard A/S has announced that all the required land-based testing of the CompactClean Ballast Water Management System has been successfully completed. The testing was performed in accordance with both International Maritime Organization (IMO) and U.S. Coast Guard (USCG) requirements and paves the way for the issue of both IMO and USCG type approval certificates later this year.
DESMI Ocean Guard's CompactClean Ballast Water Management System (BWMS) has now successfully completed all the land-based testing required by both IMO and USCG. The testing includes a total of 15 land-based tests, five in each of the three salinities required: fresh water, brackish water, and marine water. Results of the testing confirm that the system meets the stringent discharge requirements without any special operating mode to be employed in U.S. territory and without any minimum holding time to be observed between ballast water uptake and discharge.

"We are especially pleased that no less than seven land-based tests performed in different salinities and at various levels of UV-transmission of the water have been successfully completed with the shortest holding time allowed for land-based testing. This means that there is no required minimum holding time for the CompactClean system. Requirement for minimum holding times for type approved BWMSs is one of the main issues that ship operators are facing within ballast water treatment today, and we are happy to be able to provide a solution with our CompactClean system," explains Rasmus Folsø, CEO of DESMI Ocean Guard A/S. "It is a significant achievement that the CompactClean system does not need a special US operation mode to meet the USCG requirements in U.S. territory. With just one operation mode used globally, there is no need for knowing the de-ballast location at the time of ballast uptake, in order to determine if the BWMS should be operated in IMO or U.S. mode. Likewise, there are no issues related to mixing IMO and USCG treated ballast water when water is treated in one mode during ballast operation, but then pumped to a tank with remains of water treated in another mode. Mixing of ballast water treated in different modes is also a concern when water is moved internally from tank to tank during a voyage to compensate for consumed fuel. All these issues represent serious complications to the ship operator when using BWMS that must be switched to one operation mode in the U.S. and another in the rest of the world. With CompactClean we have managed to solve this."

The CompactClean BWMS consists of an automatic backflushing filter, a UV unit, valves, sensors and controls. The UV unit has a unique and patent pending shape that is the result of hundreds of state of the art numerical simulations. This shape ensures optimum dosage of the UV to all organisms in the water, and the result is a system that meets even the very strict USCG type approval requirements. Furthermore, the system includes many features that are of importance to the daily operation. One example is automatic generation of PDF reports that document all the performed ballast water treatment, in a format that is suitable for submission to local port authorities and others. Another example is that the system includes a pump that can be used as stripping pump under ballast stripping operations, thus solving one of the main problems for ballast water management system installations today.

The CompactClean BWMS is currently undergoing type approval testing according to both IMO and USCG requirements, under the surveillance of Lloyd's Register. All land-based tests have been completed and the final shipboard test and the environmental tests are planned to be completed in May 2018, paving the way for the issue of IMO and USCG type approval certificates around June/July 2018.

Apr 17, 2018

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