It is a hazardous waste and will contain solvent, powdered filter material (diatomite), carbon, non-volatile residues, lint, dyes, grease, soils, and water.
en.wikipedia.org Facilities are provided for refuelling and replenishing water, lubricating oil and grease and, for steam engines, disposal of the ash.
en.wikipedia.org This principle is exploited in soap, to remove grease for the purpose of cleaning.
en.wikipedia.org Their dual nature facilitates the mixture of hydrophobic compounds (like oil and grease) with water.
en.wikipedia.org Examples are hydrocarbons such as oil and grease that easily mix with each other, while being incompatible with water.
en.wikipedia.org