Alkaline Cleaning for Oil Removal
Alkaline Cleaning for Oil Removal is a general term for the application of an alkaline cleaning agent to a metal part to remove oil and grease during the manufacture, maintenance, or rebuilding of a metal product. This unit operation does not include washing of the finished products after routine use (as defined in Washing (Finished Products) in this appendix), or applying an alkaline cleaning agent to remove nonoily contaminants such as dirt and scale (as defined in Alkaline Treatment Without Cyanide in this appendix and Alkaline Treatment With Cyanide in appendix C of this part). Wastewater generated includes spent cleaning solutions and rinse waters.