New chemical BWMS treats 250 cubic metres an hour

BWMS The Trojan Marinex BWMS system delivers filtration and UV treatment within a single unit
Industry Database

A new chemical-free ballast water management system (BWMS) can disinfect and treat 250 cubic metres of seawater an hour.

The Damen Schelde Naval Shipbuilding (DSNS) - designed BWMS uses the compact Trojan Marinex BWT 250, enabling it to operate at full functionality in temperatures as low as -2 degrees Celsius with no by-products.

“At Damen Green Solutions, we partnered with Trojan Marinex to design a ‘plug-and-play’ installation for DSNS,” said Stefhan van Esch, design & proposal engineer at Damen.

“Together we created a bespoke design that mounts the entire BWMS on a 3m by 1m skid that can be easily and quickly fitted into the available footprint in the engine room,” he added.

Coldwater vessel

The BWMS will be used by the Australian Government’s 160m long next-generation Antarctic Supply and Research Vessel (ASRV).

The Trojan Marinex BWMS system delivers filtration and UV treatment within a single unit. Its lack of chemicals and by-products mean the risk of corrosion is minimised.

It requires 14kW of power and has exceptionally low UV transmittance, which is vital in the Southern Ocean, said Damen.

2017 installation

Mr van Esch stated that prior to leaving its manufacturing site, the BWMS system will undergo a factory acceptance test. DSNS will then connect up the power and the main pipes once the system is aboard the ASRV.

Construction of the ASRV began in May at Damen Shipyards Galati. The vessel is expected to be operational in 2020.

The BWMS has already been delivered to the yard for installation later this year.

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