The problem of hazardous wastes, being one of negative consequences of industrialization, is always in the agenda of many developed and developing countries under today's conditions.  Waste oils, that are among hazardous wastes, have became the integral part of the waste management plans of the countries. And the requirement of making planning regarding the management of waste oils arises from the desire of minimizing the negative effects of waste oil that are harmful for environmental and human health, and of using this hazardous waste by the best possible technologies in a manner that will also avail for the country’s economy.  In this direction, oil production plants, waste oil producers, waste oil carriers, recovery and disposal institutions, authorized parties and all official institutions relevant to the subject –which constitute the main elements of the country's waste oil management- are required to operate in conformity within the frame of arrangements determined by law and regulations. On the other hand, in each phase of waste oil management, the sensitivity regarding protection of environmental and human health and regarding safety in all services should be kept at the highest level, its continuous improvement should be aimed, and the society should be continuously informed regarding this aim. 
Even if it is possible to see various differences in the policies of countries relevant to waste oil management depending on priorities in environmental activities as well as changes in social and economic habits, this condition doesn’t change the requirement of fulfilling the above explained reality. In order to carry out a waste oil management policy that will be able to be effective in the whole country, it is required to determine the objectives in all phases as from the control of waste oil at its source until its recovery and disposal, and to plan these objectives within the frame of the factors of “health, safety, environment and security”. 
The qualifications of mineral oils undergo change as the result of break-up of hydrocarbons and additives –existing in them- in time. In addition, also by the effect of other contaminants such as dust, dirt, not completely burnt fuel, byproducts of humidity or corrosion which may join the compound afterwards depending on the area of use, these oils lose their functionality, and these oils that are used are qualified as waste oil.  
The used oils, which are being defined within the scope of hazardous waste, have the great potential of “being used” rather than the qualification of “waste”. This recovery potential of waste oil may be assessed in accordance with the principles of oil reclaiming, recycling as raw material or recovery as energy within the Waste Management Hierarchy being specified in the Waste Directive (2008/98/EC, 19.11.2008) published by European .
Waste mineral oils divide to 3 main categories as being recycled in 2 manners as being refining and regeneration. 
REFINING: They are the operations of transforming -through refinement- the waste oil to base oil or petroleum products conforming to national or international standards and specifications.
REGENERATION: It is obtaining original oil -conforming to national or international standards and specifications and its intended use- from waste oils by removing all kinds of contaminants, oxidation products and particles.  
I. CATEGORY WASTE OIL: The PCB, in the waste oils under this category, is under the limit values of contaminants such as total halogen and heavy metal.  It is required to enable the recovery of the waste oil –being under this category- first through regeneration and refining.  The oils in this category may be used for recovery of energy. 
II.  CATEGORY WASTE OIL: The waste oils under this category are suitable for use for recovery of energy at plants licensed by the ministry. The recovery of only industrial waste oils that don’t exceed chloride, total halogen and PCB parameters is possible through regeneration and refining. 
III. CATEGORY WASTE OIL: The heavy metals in the waste oils under this category are above the limit values provided in the following table. Chloride and total halogens are over 2.000 ppm, and PCB is over 50 ppm. They are waste oils that are not suitable for regeneration and refining, whose use as fuel creates risk in respect of environmental and human health, and that should be made unharmful as being incinerated at licensed hazardous waste incineration facilities.
Waste oils produced at licensed waste oil recovery plants are used as being added to current fuel at the following facilities:
  • Cement factories
  • Gypsum factories
  • Lime factories
  • Clay drying factories
  • Iron – steel blast furnaces
  • Power plants 
ARIS MACHINE is performing the production and installation of Turn-Key Waste Engine Oil Recovery Plants along with its domestic and foreign partners for the recent 10 years.  It provides Turn-Key Waste Engine Oil Recovery Plants of requested capacity along with its young and innovative staff specialized in the subject.