De Nora brings US ballast type-approvals to 15

Malcolm Latarche
Malcolm Latarche

20 December 2018

US-based De Nora’s Balpure ballast treatment system has become the 15th to achieve USCG type-approval.

The type-approval certificate issued yesterday (19 December) show the filtration and electrochlorination system has been approved for both safe area and hazardous zone installations for internationally trading vessels including US-Flagged vessels. It covers systems with a capacity between 400m3/h and 8,570m3/h.

De Nora
Dr Stelios Kyriacou, General Manager of BALPURE® BWMS, De Nora

De Nora is the originator and patent holder of electrochlorination disinfection of ballast water through the slipstream method. According to De Nora’s proprietary system design, only a 0.5% to 1% of the seawater flow entering the ballast line needs to be channelled into the electrochemical unit. The necessary amount of hypochlorite required to treat the water is generated in the slipstream and is then mixed to the full volume of ballast water. This makes it suitable for ships with large ballast tanks and high pumping rates, particularly large tankers, bulkers and LNG carriers, voiding the requirement to store hypochlorite onboard, achieving increased efficiency and avoiding waste.

Dr Stelios Kyriacou, General Manager, De Nora Ballast Water Management Systems commented, “De Nora has spent a long time working towards this type approval and we are delighted that our certification by the USCG has now been granted. Our team has worked hard to ensure owners and operators can partner with De Nora for their ballast water treatment needs in full confidence that we will deliver safe and reliable ballast water compliance for the lifetime of their ship. The flexible configuration of the Balpure system makes it suitable for new build and retrofit projects alike, whilst the operational adaptability delivers significant OPEX benefits over competing technologies”.