Forside
No filters. No chemicals.
One pass.
How it works
Untreated water
The ballast pump supplies untreated water to the inlet of the PV reactor at a pressure of 3 barA.
Pressure Vacuum Reactor
Water enters the PV reactor where an instantaneous pressure reduction combined with shear forces decompresses and destroys all the larger oganisms.
UV chamber
A second treatment barrier – the UV chamber – eliminates any remaining small organisms such as algae and bacteria.
To the ballast tank
The treated ballast water is then distributed to the ballast tanks.
Differentiated Technology
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
KBAL BWTS onboard newbuild LNG carrier Amaryllis Knutsen
KBAL BWTS onboard newbuild LNG carrier Amaryllis Knutsen
The KBAL BWTS was successfully commissioned and approved by Class and Owner 22.07.2025, onboard the newbuild LNG carrier Amaryllis Knutsen at Hyundai Samho Heavy Industries, South Korea. This vessel is installed with 2 x KBAL3000 filter-less UV BWT systems.
KBAL in land-based industry
KBAL in land-based industry
The KBAL system has been running for over 7 consecutive years at a smolt facility, contributing to high-quality water treatment in the aquaculture industry. With good collaboration with our customer, it was a pleasure for KBAL to invite experts from another land-based industry to receive input and see the system in use.
Certification
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.
The entire range of KBAL systems can be delivered with IECEx approval for installation in Ex zones 1 or 2.
Partners
