Most often, waste oil refers to hazardous wastes of the 2nd or 3rd class, i.e. highly hazardous or moderately hazardous waste.
In general, working off is even more dangerous than crude oil, since, in addition to the oil base, it includes the resins, carbenes, additives, polyolefins, mechanical impurities and other contaminants that have been purchased during the operation.
The negative impact of waste oil on the environment is expressed in the contamination of water resources and soil, as well as carcinogenic and mutagenic effects. For example, when draining in a pond, one liter of used oil can contaminate up to one million liters of water.
How to process waste oil?
For the first time, the oil filtration of waste lubricating oil was started in 1930. But this process has become more or less widespread only since the 1970s. Historically, the first method of processing was incineration to generate energy. Further working off began to be subjected to special cleaning, after which they were added to fresh oils.
Burning without pre-cleaning. If you burn spent crude oil, the products of its combustion can get into the environment and into the human body, which is unacceptable. Such processing is possible only in one case: when both the oil and the equipment on which it is burned fully comply with the requirements of the current regulatory and legal acts.
Processing for fuel. This type of processing is the production of liquid fuels with low sediment and water content. This is necessary so that burners and pipes are not clogged, nor does sediment build up in the tanks. From the previous method, this differs by the need for filtration to remove coarse mechanical impurities. Usually, they are separated from the oil by settling or passing the work through special porous filters. These processes are not enough to remove all chemical contamination. Therefore, distillation and treatment with bleaching clay are also used in practice.
Recovery in places of use. This approach is usually used by factories or other large enterprises that produce a large amount of waste oil. The filtration system is used to remove harmful impurities directly at the site of operation. With timely cleaning, it is possible to extend the life of the oils. To do this, we use the type of CFU of the GlobeCore trademark.
Refining at oil refineries allows the use of waste oil in the process of refining oil for the production of gasoline.
Regeneration with full restoration of properties. The use of the CMM-P-type (transformer oil only) and OVR (transformer, turbine, industrial oils) of the GlobeCore trademark allows restoring the operational properties of the used oils to the normalized values, which makes it possible to continue their operation for their intended purpose.
Theoretical oil service life in the case of timely application of regeneration processes tends to infinity, which makes this approach the most preferable both from an ecological and economic point of view. Especially if we take into account the fact that energy consumption for regeneration is 70% less than for obtaining commercial oils from crude oil.