Using heat treatment of ballast water for killing marine microorganisms

Abstract

By ships ballast water are transferred and discharged non-indigenous aquatic organisms into receiving waters. The Black Sea also was involved in such events as a source of organisms and as a colonized space too. To avoid that, the International Maritime Organization recommends treating the ballast water by means of different methods. One of them is based on heating ballast water in order to kill the organisms and microorganisms. The paper present a system for recovering the heat from main engine for rise the temperature of ballast water and the impact of different stages of heating on the total number of cells. The samples were collected from Black Sea, analyzed using epifluorescent microscope and to estimate the total number of cells the CellC software was used. Copyright ?? (2012) by Danube Adria Association for Automation and Manufacturing (DAAAM).