2006 Ivory Coast toxic waste dump by Greek shipping company Prime Marine Management Inc. and chartered by Trafigura. Trafigura desired to strip the sulfurous products out of the coker gasoline to produce naphtha, which could then be sold. Instead of paying a refinery to do this work, Trafigura used an obsolete process on board the ship called "caustic washing", in which the coker gasoline was treated with caustic soda. The process worked, and the resulting naphtha was resold for a reported profit of . The waste resulting from the caustic washing would typically include hazardous substances such as sodium hydroxide, sodium sulfide and phenols. On 2
Toxic waste The oceans can be polluted from the stormwater runoff of these chemicals as well. Toxic waste in the form of petroleum oil can either spill into the oceans from pipe leaks or large ships, but it can also enter the oceans from everyday citizens dumping car oil into the rainstorm sewer systems. Disposal is the placement of waste into or on the land. Disposal facilities are usually designed to permanently contain the waste and prevent the release of harmful pollutants to the environment. The most common hazardous waste disposal practice is placement in a land disposal unit such as a