Optimarin AS was founded in 1994 in Stavanger, Norway and was one of the first companies in the world to develop a system for environmentally friendly purification of ballast water.

The premise for the product development was not to use any chemicals and leave no residual products that are harmful to the ocean or the environment.
In 2000, Optimarin was honoured by installing the world’s first ballast water treatment system on board the cruise ship Regal Princess.

After several years of testing, developing and patenting new technology, type approval was finally obtained for the Optimarin Ballast Water Treatment System in 2009, in accordance with Guideline 8 and the ‘International Convention for the Control and Management of Ships’ Ballast Water and Sediments, 2004’.

The Optimarin BWTS uses approved technology that significantly exceeds the strict requirements set out in the IMO Convention.
In 2016, Optimarin was the first company to receive approval by the US Coast Guard under their significantly more strick requirements.

Ballast Water Treatment

During ballasting the ballast water flows through Optimarin’s proprietary filter.
The filter removes larger organism and particles and back flushes them overboard at the ballasting location.
After passing the filter, the ballast water continues through the UV chamber on its way to the ballast tanks.
The UV exposure prevent the ability of viruses and bacteria in the ballast water to cause harmfull effects to the environment.

Optimarin Optimarin



For optimal fleet flexibility, you need the ultimate in regulatory compliance.
Optimarin Ballast Water Treatment System was the first ballast water treatment system to achieve full USCG and IMO approval.

Optimarin operates in accordance with NS-EN ISO 9001:2015 & NS-EN ISO 14001:2015