Process for removing oils or petroleum from the surface of the sea
AssigneeGesellschaft fur Biotechnologische Forschung
InventorsWalter Lindorfer, Fritz Wagner, Wilhelm Jahn-Held, Walther Schulz
Life of this patent
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Abstract
After physical removal of the majority of the oil on the surface of the water, the thin film remaining is treated with microbial metabolites which reduce the surface and interface tension and cause the formation of oil agglomerates. These agglomerates may be drawn off or left to be degraded by hydrocarbon-degrading microorganisms normally present in the sea water or added thereto.
Claims6
A process for removing oil from the surface of the sea and from shoals, this oil being in the form of a layer left behind after the majority of the oil floating on the water has been pumped away or otherwise removed, comprising the steps of applying to said layer an effective amount of metabolites of microbially produced glycolipids which consist of mono- or diesters of .alpha.,.alpha.'-trehalose and .alpha.-alkyl-.beta.-hydroxy fatty acids having at least 10 carbon atoms in said alkyl group and which contain mono-, di- or oligo-saccharides as the hydrophilic component and which reduce the surface and interface tension of the oil/water system in order to form agglomerates of the oil, and then removing the agglomerates from the surface of the water.
Dependencies are inferred from the claim text.