Abstract: A method of simultaneously treating organic wastes and inorganic alkaline wastes is provided. The organic wastes are incinerated to generate an acid gas effluent. The acid gas effluent is reacted in a dryer reactor with a fluidized spray of inorganic alkaline waste which neutralizes the acid gas. The products of the reaction are substantially harmless gases, e.g., carbon dioxide and water vapor which are passed to atmosphere without scrubbing treatment, and fine particulate material which is collected for disposal. The cooling action of the alkaline spray reduces the volume and rate of flow of the combustion gases and permits use of a variety of solids collecting devices.

Abstract: Disclosed is a process for rejuvenating and reclaiming useful hydrocarbon oils from contaminated waste oils. The process comprises dehydrating the waste oil and thereafter dissolving the dehydrated oil in a selected amount of isopropanol or N-propanol at a temperature of from 45.degree. C. to 80.degree. C. The undissolved waste matter is separated and the residual oil/solvent fraction is distilled to recover the decontaminated oil and the solvent. The recovered oil can be further clarified by treatment with a bleaching clay or activated carbon at elevated temperatures. The process is more efficient and economic than those known heretofore resulting in high yields of reclaimed oil and more environmentally acceptable waste products.