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Ballast Water Treatment
Total compliance, complete reliability, focused expertise – your partners for BWT excellence. Our system utilizes filter and UV treatment compliant with IMO and USCG regulations.
Ballast Water Treatment System
50 - 3000M³H CAPACITY
Environmental treatment without chemicals
Optimarin Ballast Water Treatment System combines simplicity with innovation. We utilize a combination of automatic back flushing, self-cleaning filters and powerful UV irradiation to neutralize all potentially invasive species in the water.

With a modular nature, the system is flexible and easy to install on any vessel (newbuild and retrofit). Even those with the most restrictive space demands. Our solution does not use nor generate chemicals in its process. Most importantly: It is simple to operate and maintain.
Always one step ahead
INNOVATIVE, NORWEGIAN PIONEERS
2000
First ever company to install a commercial ballast water treatment system

2016
First ever company with US Coast Guard type approval
News

Optimarin follows strong 2020 with fight for Norway’s Smartest Business title
Ballast Water Treatment (BWT) specialist Optimarin is fighting for the title of Norway’s Smartest Business, capping a year that has seen strong sales and revenue performances under difficult conditions. The Stavanger-headquartered, global BWT pioneer finished 2020 with a surge in contracts – including signing a 40-vessel exclusive frame agreement with a major, unnamed shipowner – … Read More
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Optimarin ready for “wave of orders” after unique USCG filter approval
Ballast water treatment specialist Optimarin has received updated United States Coast Guard (USCG) approval confirming its position as the only UV-system supplier with certification for a choice of two filters. The flexibility of selecting Filtrex or Boll filters means all Optimarin components are now available from two suppliers, ensuring maximum availability and express delivery for … Read More
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IMO G8 certification boosts military contracts for Optimarin
Optimarin has just completed its first revised IMO G8 compliant system installation for the Norwegian Coastguard, cementing its position as a preferred supplier for the fleets charged with patrolling, protecting and maintaining standards in national waters around the world. “Even the vessels that don’t have to install a ballast water treatment (BWT) system install Optimarin,” … Read More
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Optimarin gains revised IMO approval and seals Arriva Shipping and Østensjø Rederi orders
Optimarin gains new revised Type Approval under the new BWMS Code, IMO Resolution MEPC.300(72) certificate for its market proven, simple and robust ballast water treatment (BWT) technology. The news ensures complete global compliance for a growing customer base, with the very latest orders received from Arriva Shipping, for its fleet of advanced dry bulk vessels, … Read More
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‘Global Thought Leader’ Optimarin with new film addressing environmental threat of ballast water
Leading ballast water treatment (BWT) specialist Optimarin has released a film aiming to create greater public awareness of the issue of ballast water, invasive species and the role the shipping industry has in combatting this major environmental threat. The five-minute long ‘Global Thought Leader’ video is set to be broadcast on respected international news channel … Read More
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Optimarin successfully completes IMO G8 and USCG test programme
Norway: Ballast water treatment (BWT) specialist Optimarin has successfully completed testing of its market proven Optimarin Ballast System (OBS) in accordance with the revised IMO G8 guidelines, while also upgrading its existing US Coast Guard (USCG) approval certificates to ensure compliance for zero to two hours holding time. In a demonstration of OBS’ unique robustness and … Read More
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“Optimarin’s flexible and modular construction means efficient use of space and power, and easy integration with ship systems. This gave us the confidence we needed, and we have chosen Optimarin for each and every ship.”
“Our experience is that the Optimarin Ballast Water Treatment System is a well engineered product of good quality. It is simple and relatively compact. The system was ordered and delivered as loose components what makes the installation easier, in particular on smaller vessels where limited free space is available.”