No filters. No chemicals.
One pass.


KBAL® – Knutsen Ballast Water Treatment Technology

Knutsen Ballast Water Treatment Technology, KBAL, is the first BWTS of its type that is approved by IMO and USCG according to the revised G8 standard that does not use filters or chemicals.

KBAL is also the first UV Ballast water treatment system that is approved for One-Pass treatment.

KBAL® – Technology

The KBAL Treatment Technology is based around our patented PV Reactor, allowing the KBAL system to operate without a filter system. The KBAL system has been successfully installed and operated on numerous vessels.

Latest News

May 30th, 2023

Collaboration with HVL

Collaboration with HVL

KBAL is proud of our collaboration with HVL over the last decade, covering a wide variety of research regarding ballast water with a focus on UV disinfection and Vacuum.


KBAL has been rigorously tested and type approved according to the latest IMO and US Coastguard requirements, ensuring that the system is fully compliant across the globe.

In addition, the KBAL BWTS has been approved by a number of classification societies to meet the requirements of specific flag states, with work in progress on further approval certificates.