KBAL® – Knutsen ballast water treatment technology
The idea of Knutsen ballast water treatment technology, KBAL®, started in 2005 and is based on KVOC, a technology that Knutsen Technology has developed, patented and installed on several shuttle tankers. Knutsen Ballast Water AS was founded in 2009 with the aim to develop a ballast water treatment system suitable for marine vessel operations.
The pressure vacuum reactor working in combination with a vertical ballast water drop line, ensures a low temperature boiling condition that eliminates the majority of the organisms. Any remaining bacteria are effectively eliminated by the UV Chamber mounted down steam on the pressure vacuum reactor.
Due to the highly effective and compact pressure vacuum reactor, the system does not need any filters nor chemicals, hence a minimum foot print is ensured.
The KBAL control software allows operator to switch effortlessly between Worldwide mode and IMOeco mode. For Port State Authorities the system will easily generate a report documenting that ballast water operations are compliant and have been performed in accordance with the regulations.
KBAL single unit range will consist of: 400 m3/h, 12000 m3/h 2000 m3/h and 3000 m3/h
In 2012 KBAL received the IMO Type Approval certificate from DNV GL. Since then our system has been installed on 14 of Knutsen Shuttle – and LNG tankers.
KBAL is currently in the process of qualifying for USCG – and the revised IMO G8 Type Approval. The system has been tested in all three salinities and in full scale on one of Knutsen shuttle tanker, all test surpassing the D-2 standards with great margin.
The aim is to complete all testing by September 2019 and submit report to the administration within 2019.
Main keypoint of KBAL®
The KBAL system consists of a limited number of parts. The main component is the compact pressure vacuum reactor. KBAL does not contain any complex system of filters hence the footprint is minimal. The installation is easily performed.
KBAL is to be operated during uptake and discharge of ballast water. The system is simple and runs fully automatically.
The KBAL system does not use any filters. This implies less maintenance, less spare parts on board and no need for back flushing. No chemicals are used; this implies no implication on the coating and no need for keeping a stock of neutralizers on board.