Displaying 10 out of 65 suppliers

Ballast Water Treatment Systems Suppliers

Ballast water is essential for vessel stability, but it also carries a major environmental responsibility. When discharged without treatment, it can introduce invasive species into local ecosystems - disrupting marine life and violating international regulations. That’s why Ballast Water Treatment Systems (BWTS) are now mandatory for most commercial ships operating globally.

Driven by regulations, shipowners are under growing pressure to install approved systems that meet both compliance and operational demands. But selecting the right equipment goes beyond certification. Space limitations, power availability, water conditions, and trading routes all influence which system works best on board.

As compliance becomes a permanent part of ship operation, working with a reliable BWTS supplier is essential - not only for installation success, but also for long-term performance, service support, and peace of mind.

A Practical Guide to Selecting the Right BWTS Solution for Your Fleet

Choosing the right ballast water treatment system depends on several key factors - starting with your vessel’s ballast capacity, flow rate, and onboard space and power availability. Some ships are best suited to compact UV-based units, while others require electro-chlorination systems designed for higher-volume operations.

Performance under different water conditions is also important. Systems must operate reliably in coastal, freshwater, or sediment-heavy areas, depending on where the vessel operates. Other considerations include energy use, chemical handling, integration with existing systems, and how easily the crew can operate and maintain the unit.

Most shipowners now select systems with both IMO and USCG approval to ensure global compliance. Leading ballast water treatment system manufacturers offer tailored solutions for various vessel types and retrofitting needs:

Alfa Laval (Sweden) - PureBallast. One of the earliest manufacturers in UV-based ballast water treatment. Alfa Laval’s PureBallast system is known for chemical-free operation, high flow capacity, and compatibility with both newbuilds and complex retrofits. Designed for reliability in low-clarity waters and fully type-approved by both IMO and USCG.
DESMI (Denmark) - CompactClean. A Danish-engineered system with a compact, modular footprint ideal for retrofit projects. CompactClean uses UV and automatic filtration, offers low power consumption, and is available in versions with no need for chemical handling or neutralization.
Optimarin (Norway). Norway’s Optimarin was the first company to receive USCG type approval for a UV-based system. Their unit is praised for its simplicity, low maintenance needs, and strong global reference list - especially in retrofit applications on midsize vessels.
Headway Technology (China) - OceanGuard. One of China’s most established BWTS manufacturers, OceanGuard combines filtration with UV treatment and is known for its small footprint, low energy requirements, and effectiveness in turbid waters. Widely installed across Asian-built tonnage and increasingly recognized worldwide.
Wärtsilä (Finland) - Aquarius. Backed by one of the world’s largest marine technology providers, Wärtsilä’s Aquarius line offers both UV and electro-chlorination options. Known for its scalability, robust automation, and integration with Wärtsilä’s broader ship systems ecosystem.

Finding the Best BWTS Systems for Your Vessel

Choosing the right ballast water treatment system involves comparing technologies, understanding your vessel’s specific needs, and evaluating suppliers who can support installation and long-term operation.

Records Marine connects shipowners, managers, and technical buyers with vetted BWTS distributors around the world - from leading international manufacturers to regional specialists. Each company listed is reviewed for experience, product scope, and compliance with IMO and USCG standards.

Whether you're planning a newbuild, managing a retrofit, or simply exploring options that fit your vessel's flow rate, our platform helps you move from search to shortlist with confidence. You'll find system brands, locations, approval status, and contact details - all in one place.