As regulations tighten and environmental challenges escalate, the maritime industry is searching for sustainable solutions. Bawat ballast water management system is one of them.
TECHNOLOGY
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, that represents maybe the simplest solution to an ecological and regulatory issue within the international shipping industry.
The heart of the Bawat system is the pasteurizing unit. Here, the ballast water is heated to a certain temperature via plate heat exchangers. Depending on the treatment temperature applied, ballast water is kept at this elevated temperature for a short period. The combination of elevated temperature and retention time in the pasteurizing unit ensures efficient elimination of all living organisms.
Within the regeneration section of the unit, the already treated ballast water pre-heats the in-coming water resulting in low power requirements and high energy efficiency.
ONE-PASS
BALLASTING TREATMENT
Ballast water is pumped from the sea to the pasteurizing unit and then to a clean ballast tank.
ONE-PASS
DE-BALLASTING TREATMET
One pass through the system and ballast water is ready for discharge
ONE-PASS
TANK-TO-TANK TREATMENT
Ballast water is shifted from one tank to a clean tank through the pasteurization unit.
Circulation treatment
NITROGEN IS INJECTED
Ballast water is pumped from just below water surface into the pasteurizing unit. The treated water is re-introduced into the same tank through jet nozzles close to the tank's bottom. When the water is led back to the ballast tank nitrogen is injected.
