List of type approved BWTS
March 7, 2023
This list of BWTS suppliers is meant to provide an accessible overview of the available systems while it also provides information on each BWTS’s type-approval status and method of treatment employed as stated on each system’s website.
It is not an exhaustive list of all the companies that produce treatment systems, and we refer to each system’s own website for the most up-to-date information regarding their type approval status and treatment method.
| Company (listed alphabetically) |
Model | Treatment methods | USCG & IMO Type Approval | |
| 1. | Alfa Laval | PureBallast 3.1 | Filtration and UV light disinfection | Yes |
| 2. | Bawat | Bawat BWMS | Pasteurization (heat-based) | Yes |
| 3. | Bio UV | BIO SEA ‘M’- series | Filtration and UV light disinfection | Yes |
| 4. | BSKY | BSKY Ballast Water Management System | Hydrocyclone separation filter, ultrasonic wave pre-treatment and UV light disinfection | Yes |
| 5. | Cathelco (part of the Evac Group) | Evac Evolution ballast water management system | Filtration and UV light disinfection | Yes |
| 6. | COSCO | Blue Ocean Shield BWTS | Filtration and UV light disinfection | Yes |
| 7. | De Nora | BalPure | Electro-chlorination | Yes |
| 8. | Desmi | CompactClean | Filtration and UV light disinfection | Yes |
| 9. | Ecochlor | Ecoxchlor BWMS | Filtration and Chlorine Dioxide (ClO2) | Yes |
| 10. | Elite Marine Corporation | Seascape | Filtration and UV light disinfection | Yes |
| 11. | Erma First | FIT BWTS | Filtration and electrolysis | Yes |
| 12. | Evoqua | SeaCURE® Ballast Water Management System | Filtration and electrochlorination | Yes |
| 13. | Hanla IMS | EcoGuardian | Filtration, electrolysis and neutralization | Yes |
| 14. | Headway Technology Co | OceanGuard BWMS | Filtration and electrocatalysis | Yes |
| 15. | Hyundai Heavy Industries | HiBallast | Filter, electrolysis and neutralization | Yes |
| 16. | JFE Engineering | JFE BallastACE | Filtration and Chlorine injection | Yes |
|
17. |
Knutsen Ballast Water AS | KBAL | Pressure and UV light disinfection | Yes |
|
18. |
Kuraray | MICROFADE™ | Filtration with chemical injection and neutralization | Yes |
|
19. |
Kurita | KURITA BWMS | Chemical injection and neutralization | Yes |
|
20. |
LeesGreen | LeesGreen BWMS | Filtration and UV light disinfection | Yes |
| 21. | MIURA | MIURA BWTS | Filtration and UV light disinfection | Yes |
|
22. |
NiBallast | NiBallast BWMS | Filtration and gas-nitrogen | Yes |
|
23. |
Norwegian Greentech | NGT BWMS | Filtration and UV light disinfection | Yes |
| 24. | oneTANK (an Erma First Company) | oneTANK ballast water treatment system | Chemical treatment (8.25% sodium hypochlorite solution and 30% sodium thiosulfate solution) | Yes |
| 25. | Optimarin | Optimarin Ballast System | Filtration and UV light disinfection | Yes |
| 26. | PACT MARINE | PACT Marine BWMS | Filtration and UV light disinfection | Yes |
| 27. | Panasia | GloEn-Patrol | Filtration and UV light disinfection | Yes |
| 28. | Panasonic Environmental Systems & Engineering Co., Ltd. | ATPS-BLUEsys | Electrolysis | Yes |
| 29. | Purestream | Purestream BWT | UV-based | Yes |
| 30. | Samsung HI | PURIMAR |
Filtration, electrolysis, neutralization |
Yes |
|
31. |
Scienko (formerly known as Envirocleanse) | InTank BWTS | Sodium Hypochlorite (NaOCl) and recirculation | Yes |
| 32. | Semb-eco | LUV Ballast water management system | Filtration and UV light disinfection | Yes |
| 33. | Shanghai Electric Cyeco Environmental Technology Co. | Cyeco BWTS | Filtration and UV light disinfection | Yes |
|
34. |
SKF | BlueSonic BWMS | UV light disinfection and ultrasound | Yes |
| 35. | SunRui | BalClor BWMS | Filtration, Electro-Chlorination and neutralization | Yes |
| 36. | Team Tec | Ocean Saver | Filtration and side stream electrodialysis | Yes |
| 37. | Techcross | Electro-Cleen | Electro-chlorination and neutralization | Yes |
| 38. | Wärtsilä | AQUARIUS UV | Filtration and UV light disinfection | Yes |
Ballast water treatment methods
There are many different ways to treat ballast water, but the three most common approaches include:
- Mechanical methods that include separation and filtration
- Physical methods that include ozone, electrical currents and UV radiation
- Chemical solutions that use biocides or a form of chlorination.
As seen in the overview, many systems combine the use of more methods to ensure full water treatment and compliance with the USCG and IMO regulations.
Testing needs and requirements
Commissioning testing ensures that ballast water treatment system installations actually perform according to type approval but differs from type approval testing by validating the specific system installation, including tanks, pipes and valves.
Once at sea, an installed BWTS could fail a Port State Control (PSC) inspection for a variety of reasons. Regular testing helps detect such failures and enables operators to take the necessary corrective actions to ensure compliance.
To easily test your ballast water, the BallastWISE test kit is completely portable, based on direct counting of organisms, and can be used by everyone.
BallastWISE verifies that your ballast water complies with both IMO and USCG standards, it offers multiple layers of documentation with image analysis and Video Expert Review, and it automatically generates a 1-page document with results to easily include in your reporting.
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