Waste oil

Waste oil commonly referred to used oil which does not meet the requirements such as lubrication or cooling. In particular, the term used oil for technical applications, such as engine oil, transmission oil or hydraulic oil.

Properties and aging of oils

Oil is changed at regular use in its properties. Here are some examples:

• Cooking and frying oils and fats absorb water and change their chemical properties by the high temperatures in the presence of water, proteins and carbohydrates. The oils are partially digested, chemical double bonds to break, it caused fatty acids, acrylamide and other undesirable compounds.
• Engine and machine oils accumulate with water, other lubricants and consumable materials and foreign matter such as ash or metal debris. Included additives are consumed gradually.
• In internal combustion engines, fuel residues, soot and ash collect in the oil and are held by additives in the balance. Thermal stresses arise new and possibly even toxic compounds such as dioxins.

Terms of Use

In 2002, the Waste Oil Ordinance was modified in Germany and entered into as amended on 16 April 2002. Significant change was the grouping of the various waste oils collection categories (I, II, III and IV). Mixtures from the oils of various categories are prohibited, that is, they must be collected separately and disposed of. All oils of the category I are primarily the material feed utilization.

Because mineral oil may contaminate the drinking water and thereby make them unpalatable, it must be brought to appropriate oil collection points. Vegetable oils and fats are not covered by the Waste Oil Ordinance, however, must also be disposed of properly. According to the Administrative Regulation on substances hazardous to water waste oil is classified with a water hazard class 3, unless it is used oils of known origin.

In Germany all sellers are required of lubricants, free of charge upon presentation of receipts used oil, to the quantity sold in each case, to withdraw and deliver proper disposal. The trade has to be equipped with appropriate take-back systems available. Furthermore, there is, at the local level, the possibility that consumers can return used oil at collection points in small amounts. The redemption collection centers may be chargeable. Improper disposal of used oil is punishable. Special features also regulates the recycling law.

In Switzerland, mineral oils are subject to a disposal tax. In addition, however, companies also have to pay disposal fees when collecting the lubricant consumed.