Maersk tests ballast water treatment in a box

DESMI BWTSFEBRUARY 8, 2013 — Nørresundby, Denmark, headquartered DESMI Ocean Guard A/S says that A.P. Møller – Maersk has tested its containerized solution for ballast water treatment and has concluded that it is a very attractive solution, particularly for container vessel retrofits.

Per Hother Rasmussen of Maersk Maritime Technology explains: "We have tested containerized ballast water treatment system plants on two different vessels and we find it a viable way of overcoming space problems in crowded engine rooms as well as giving us the advantage of easy and short installation time, even with the vessel in service. Starting in September 2011, we have tested the DESMI Ocean Guard containerized solution over 7 months on one of our vessels and found that it lived up to our needs and expectations. We are satisfied with the results."

DESMI Ocean Guard offers its OxyClean system both as a component delivery, skid-mounted system or installed in a container. The containerized solution can be delivered with flow rates up to 500 cu.m/h in a 20 ft container, and up to 3,000 cu.m/h in a configuration with two 40 ft containers placed on top of each other. The reason for placing the containers on top of each other is to accommodate the required service height of the filter.

The DESMI Ocean Guard OxyClean ballast water treatment system was type approved by Lloyd's Register in November 2012. In January 2013 DNV concluded its Safety Assessment of the system and ABS issued a Design Assessment certificate.

The OxyClean system is based on mechanical filtration followed by disinfection with a combination of UV and ozone. The system is the first ballast water treatment system on the market that has completed successful IMO testing in fresh, brackish and salt water.

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