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 (OTS) components, with no chemicals, no filters and no UV.

The BWMS is 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.

TECHNOLOGY DESCRIPTION

1. The untreated ballast water is pumped from the sea chest to the regeneration section, where the pre-heating of the water takes place.

2. The water is then being pumped to the heating section, where it reaches the pasteurizing temperature and flows to the retention section.

3. After passing the retention section the water is pasteurized and fulfills the required outlet criteria - no holding time or further treatment required.

4. The treated water is cooled down in the regeneration section, where the heat is transferred to the incoming ballast water.

The process is monitored and controlled from the Control and Monitoring Unit (CMU).