Treatment of ships’ ballast water: why?
In times of globalized world trade and modern shipping, millions of aquatic species are transported via billons of tonnes of ships’ ballast water. These species often cause marine invasions, with potentially huge consequences for our oceans and it’s ecoystems, our economy and public health.
That is why the global IMO Convention on Ballast Water Management entered into force in 2017. The convention aims to decrease and manage the spread of marine invasive species by obligatory treatment of ballast water. As a major region of marine traffic, the United States have established the ETV protocol in 2010. All ships entering US waters must comply with the ETV protocol, and, consequently BWTS placed on-board must be US Type Approved. The documentary ‘Invaders From The Sea’, a cooperation between the IMO and BBC, provides an excellent overview of the marine invasions problem and possible solutions. Watch it here.