Comparative analysis of used engine oil recycling technologies

The article presents a comparative analysis of used motor oil disposal technologies.It examines the chemical composition changes in oils during operation due to the addition of various additives.The author emphasizes the importance of proper disposal to minimize environmental harm.The main recycling methods described are acid-adsorption treatment, solvent extraction, vacuum distillation, and membrane filtration.Each method is evaluated in terms of effectiveness and environmental safety.The study includes a detailed analysis of data obtained by different recycling methods.Experimental results are presented, showing changes in viscosity, density, flash point, and total acid number of oils before and after recycling.The comparative analysis focuses on the advantages and disadvantages of each method.For example, acid-adsorption treatment is relatively cheap and simple but creates an acidic environment that can cause corrosion.Solvent extraction yields oil properties similar to new oil but requires highly qualified personnel and significant economic investment.In addition to the primary methods, the article discusses the broader environmental and economic implications of each technology.It highlights how effective recycling can reduce the harmful impact of waste oil on air, water, and soil, thereby protecting human and animal health.The discussion extends to the regulatory and technological challenges faced in implementing these methods on a larger scale.The conclusion emphasizes the need for further improvement in oil recycling technologies to reduce their negative environmental impact.The authors highlight the importance of choosing the method based on specific conditions and recycling goals, considering both environmental benefits and economic feasibility.Continued innovation and adherence to environmental principles are essential for advancing oil recycling practices

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