Finland’s pioneering wastewater regulations: Future-proof your vessel with advanced biological treatment
On July 1st, 2025, Finland implemented the world’s first nationwide regulation requiring all vessels, regardless of type, to meet stricter standards for onboard wastewater treatment. This legislative milestone marks a growing trend: environmental compliance in maritime operations is no longer optional—it’s essential.
The implications for shipowners
Finland’s legislation signals an accelerated tightening of wastewater discharge rules globally. Shipowners who fail to upgrade wastewater treatment systems risk non-compliance, operational restrictions, or fines in waters adopting similar measures.
Why biological treatment is the sustainable choice
Unlike traditional chemical or physical methods, biological treatment emulates natural processes to break down contaminants. At G&O Bioreactors, our systems are designed to:
- Efficiently remove nutrients and microplastics, preventing eutrophication and protecting marine ecosystems
- Integrate seamlessly onboard, thanks to a modular design that adapts to newbuilds and retrofits
- Eliminate dependence on chemical dosing, reducing costs, logistics challenges, and environmental risks
- Ensure compliance with current and future IMO and regional standards, including DNV type approvals and certifications by authorities such as Chile’s fishing industry
A smarter investment
While cheaper systems may offer short-term savings, they often come with higher maintenance costs, shorter lifespans, and greater operational complexity. Our European-engineered bioreactors deliver proven long-term value by minimising downtime, reducing maintenance needs, and guaranteeing reliable compliance.
Conclusion
As Finland sets a new benchmark in maritime environmental protection, the question for shipowners is clear: Is your fleet ready for a future of stricter regulations?
Contact us today to learn how G&O Bioreactors can secure your compliance and support sustainable operations