Industrial lubricating oil pollution and solutions, the most used lubricating oil in the industry is usually gear oil, hydraulic oil, turbine oil, compressor oil, etc., after the lubrication system runs for a period of time, the oil is affected by environmental temperature difference, light, heat, oxygen, mechanical impurities are affected by shearing, and long-term operation produces thermal decomposition, oxidation and polymerization. Produce oxides, colloid, asphaltene dissolve in the oil, thus making the oil cloudy, dark, and even black, resulting in flash point and kinematic viscosity.