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As global regulations tighten and environmental challenges escalate, the maritime industry needs technical sustainable solutions. Bawat ballast water management system is an innovative solution to a global problem.
About pasteurization
Pasteurization was invented by French scientist Louis Pasteur in 1862. Pasteur discovered that heating beverages was enough to kill most of the bacteria that caused spoilage, preventing these beverages from turning sour. Today, pasteurization is still used widely in the dairy industry and other food processing industries to achieve food preservation and food safety.
How we use pasteurization
Bawat BWMS is based on unique patented technology, which represents maybe the simplest solution to an ecological and regulatory issue within the international shipping industry.
The unique and efficient choice
Bawat’s ballast water management system represents a real innovative breakthrough in ballast water management. The solution utilizes available on-board waste energy often from the main engine to treat ballast water in-voyage. Alternatively the system can be connected to other heat sources, enabling the vessel to treat ballast water in port as well.
The Bawat BWMS is easy to install and simple to operate. It is built from off-the-shelf components, with no chemicals, filters and UV. Its an appendix to the ballast water system – not in-line with the ballast pumps, thereby giving the owner an option to have a BWMS that is sized to fit to the ballast treatment need and not according to the size of the ballast pumps.
When utilizing waste heat to drive the BWMS, OPEX for the ship owners becomes negligible, as no other energy and consumables are required.
Vessel BWMS technology
Installation
The Bawat BWMS consists of proven marine components, making the system highly flexible for implementation in almost any ship type and size – independent of ship’s ballast pump capacity.
Each Bawat BWMS installation is unique in terms of design by taking the ship’s layout and heating system arrangement into account during a meticulous design process.
The system can also be delivered partly or fully skid-mounted.
The components of the Bawat BWMS do not need to be in immediate vicinity of each other, giving the system great flexibility with respect to installation.
Technology description
The process is monitored and controlled from the Control and Monitoring Unit (CMU).
01.
The untreated ballast water is pumped from the sea chest to the regeneration section, where the pre-heating of the water takes place.
02.
The water is then being pumped to the heating section, where it reaches the pasteurizing temperature and flows to the retention section.
03.
After passing the retention section the water is pasteurized and fulfills the required outlet criteria - no holding time or further treatment required.
04.
The treated water is cooled down in the regeneration section, where the heat is transferred to the incoming ballast water.