Challenges in Pretreatment/Treatment of Oil in Water Emulsions for Oil Waste Management in the Context of Sustainable Development

The purpose of the article is to present practical, technical and ecological challenges in the pretreatment/treatment technologies of spent oil waste that are oil-in-water emulsion systems containing high volumes of water difficult to be temporary stored. A set of experimental tests on representative oil-in-water spent emulsions have been realized based on a set of treatment screening criteria so that any oil-waste producer/holder can use them to find best pretreatment solutions preventing on-site oil waste generation and preserving in the same time depletion of non-renewable natural resources by recovery of valuable components in the context of sustainable development.