What is the pH value of waste engine oil
1 Answers
The pH value of waste engine oil is 4.5-6. Waste engine oil refers to oil that has been contaminated with water, dust, other oils, and metal particles from component wear during use, leading to darkening in color and increased viscosity. It also refers to oil that has gradually deteriorated, forming organic acids, colloids, and asphalt-like substances. The regeneration of waste engine oil involves removing impurities through methods such as sedimentation, distillation, acid washing, alkali washing, and filtration. It is a toxic substance and classified as a nationally designated solid hazardous waste. The unauthorized trading of waste engine oil is strictly prohibited, and it should be handed over to qualified waste oil treatment companies for proper disposal. According to regulations such as the 'Law of the People's Republic of China on the Prevention and Control of Environmental Pollution by Solid Waste,' 'Administrative Measures for the Licensing of Hazardous Waste Operations,' and 'Administrative Measures for the Manifest System of Hazardous Waste Transfer,' waste engine oil, diesel, heavy oil, etc., are classified as hazardous wastes under national regulations. Individuals and entities generating hazardous wastes must report the types, quantities, flow directions, storage, and disposal of such wastes to the environmental protection authorities and handle them in accordance with national regulations. Units engaged in the collection, storage, and disposal of hazardous wastes must apply for an operation license from the environmental protection authorities, which is processed by provincial-level environmental protection departments.
