Marinfloc combines EGR washwater and bilge water treatment

Malcolm Latarche

Malcolm Latarche · 26 March 2020

ShipInsight


Sweden-based separator specialist, Marinfloc has announced a combined Exhaust Gas Recirculation Bleed Off water treatment system and Bilge water separator. Their innovative solution is approved by both DNV GL and MAN Energy Solutions and fulfils the requirements of MEPC 107(49) and MEPC 307(73). The approval means that only one separator is required instead of two.

Reducing the amount of equipment needed on a vessel will provide shipyards, engine makers and ship owners with a significant cost saving solution as both CAPEX and OPEX are reduced.

Exhaust Gas Recirculation (EGR) is used by engine manufacturers to reduce NOx for the IMO Tier III requirements when use with compliant fuel. The EGR process will generate a portion of bleed off water that must be treated to < 15 PPM which is also the requirement for bilge water. By combining the two treatment systems, the Capital Expenditures will be significantly reduced without any negative impact on performance. Additionally, there will also be a welcomed reduction in Operating Expenditures as maintenance, spare parts and training are needed only for one unit.

The system is based on Marinfloc’s well-known flocculation technology with thousands of references worldwide. The Whitebox is included as standard to segregate the waste streams, to eliminate cross contamination and record all activities. Moreover, the Whitebox fulfils the EXXON requirements and is Marinfloc’s recommendation on all US calling vessels.

“Both treatment units are mandatory, so why not combine them. It would be foolish to have a separate treatment unit that might not even be in use for the majority of the year. This way neither crew nor owners will lose any sleep going into NECAs as they are already operating the unit on a daily basis” said Martin Gombrii MD at Marinfloc S&P

The development of this solution started back in 2016 at MAN Energy Solutions facilities in Copenhagen and concluded when DNV GL approved the system design in early 2020. “Sometimes new products are done overnight, sometimes they take five years. Looking at the result I’m glad that we didn’t rush anything. We have developed a truly unique product and are proud to be a MAN Energy Solutions approved supplier” said Benny Carlson, Chairman of Marinfloc.

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