The presence of micro-organisms in maritime vessels’ ballast water tanks leads to the introduction of alien species all over the world. With the increase of international trade, problems related to invasive species are also on the rise. As such, the International Maritime Organization (IMO) has responded and introduced a resolution that is about to be ratified and therefore become mandatory for all oceanic ships.
By using a combination of mechanic filtering and specially-developed UV long-arc mercury lamps operated by advanced power supplies from USHIO, ballast water can be successfully cleaned. The high efficiency of the lamps and power supplies combined with long lifespans lead to reduced operating costs for the treatment systems.