All marine vessels will tend to accumulate some bilge water, and with a mixture of oils and other hydrocarbons on board, discharging directly to the sea is irresponsible, and indeed illegal in many situations. Waste oily water is a by-product created by ocean going vessels globally which runs into millions of tonnes annually. A mixture of water, oily fluids, lubricants and greases accumulate in the lowest part of each vessel known as the bilges.
While larger vessels above 400 gross tonnes are well regulated, smaller vessels have differing requirements. AtZ can offer a range of filtration systems which can selectively remove hydrocarbons from bilge water as well as particulate matter. In cases where older oily water processing equipment is fitted – performance can be improved by the addition of bilge water filtration.