Petroleum microbiology oil while A. borkumensis simutaneously increases synthesis of anionic glucoproteins, which are used to emulsify hydrocarbons in the environment and increase their bioavailability. The presence of crude oil along with appropriate levels of nitrogen and phosphor catalyzes the removal of petroleum either by mechanisms that enhance the efficiency of substrate uptake or by direct biodegradation of aliphatic chains. Two well-known oil spills exemplify large scale marine bioremediation applications: In 1989, the Exxon Valdez ran aground, spilling 41.6 million liters of crude oil, and launching one of the first major bioremediation efforts for an oil spill. Cleanup of Alaskan shorelines relied
History of the oil tanker first time when the US Coast Guard took on the salvage of the "Argo Merchant", although the vessel was in international waters. This was the first time the monopoly of flag states was broken through. The Exxon Valdez oil spill was the incentive to introduce legislation requiring tankers to have a double hull, a measure that is not seen as the best solution by all experts. Where a double hull should minimize the consequences after a disaster, Concordia Maritime developed the "Stena V-MAX", a VLCC with two propellers, two rudders and two redundant engine rooms, where a single fault does