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Materials can be said to fall into two broad categories - hydrophyllic (they like to get wet with water) and oleophilic (they like to get wet with oil). To clean an oil spill you need a material that likes to get wet with oil, doesn't like to get wet with water and floats in either material. Hay, cellulose, some plastics and many other materials meet these criteria.

Part of the trouble with these materials is that they can start out as good oil absorbers but pick up a lot of crud with the oil that makes it sink. In addition the material has to be put into the oily re in a form that allows easily removable when it reaches its capacity.

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15y ago

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