In India, "used oils" can refer to waste cooking oil or used lubricating oils. Waste cooking oil is increasingly being collected and recycled, particularly for producing biodiesel through government initiatives like the Repurpose Used Cooking Oil (RUCO) program.
Used lubricating oils, such as engine and hydraulic oil, must be managed through an Extended Producer Responsibility (EPR) framework for recycling, as improper disposal poses a significant environmental threat.
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Used cooking oil (UCO)
- Generation: India generates about 3 million metric tons of UCO annually, with a significant portion coming from commercial establishments like hotels and restaurants.
- Government initiatives: The FSSAI's RUCO initiative aims to collect and convert UCO into biodiesel, reducing reliance on fossil fuels and preventing improper disposal that can harm public health and the environment.
- Market: Companies and suppliers collect UCO for processing into biodiesel and other products.
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Used lubricating oil
Sources: This includes used engine oil, gear oil, and hydraulic oil.Environmental hazard: If not recycled, used lubricating oil can contaminate soil and water, posing a significant environmental threat.EPR regulation: The Ministry of Environment, Forest and Climate Change mandates EPR registration for producers, recyclers, and importers of used oil under the Hazardous Waste Management Rules, 2016
Where to find suppliers and informationOnline marketplaces: Platforms like IndiaMART and Exporters India list various suppliers of used cooking oil and other waste oils.EPR registration: For used lubricating oils, registration must be obtained through the Central Pollution Control Board (CPCB).
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMRecycling: This framework ensures that used oil is collected and reprocessed instead of being improperly discarded. NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNhttps://ecoil.in/
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The re-refining processCollection and pre-treatment: Used oil is collected from sources like auto shops and industries. It is then pre-filtered to remove large debris and water, which is crucial for the next steps.Dehydration: The oil is heated, which helps separate water and light hydrocarbons. Applying a vacuum can enhance this process by reducing the boiling point of water.Centrifugation: This step uses centrifugal force to further separate impurities from the oil.Vacuum distillation: This is a key step in re-refining. The oil is heated in a vacuum, which allows its components to be separated based on their boiling points at lower temperatures.Re-refining: The separated components, particularly the base oil, are processed to remove contaminants and restore the oil's original properties, making it suitable for new lubricant production. NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Reconditioning: Impurities are removed, extending the oil's life but not returning it to its original condition.Energy recovery: The oil is processed and burned for energy, which is less preferable because it can only be reused once.Petroleum refinery insertion: The used oil is introduced into a petroleum refinery as a feedstock. NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
- https://www.epa.gov/recycle/managing-reusing-and-recycling-used-oil
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- https://www.attaquantepl.com/used-oil-recycling-plant-manufacturers-in-chennai.php
- https://www.attaquantepl.com/used-oil-recycling-plant.php
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- Disadvantages of used oil stoves include potential health risks from toxic fumes, fire hazards, and a greater need for maintenance.
- Heating oil can produce harmful byproducts like free radicals and acrolein, especially when reheated, and can release excessive smoke and unpleasant odors. Improperly installedprone to fires or explosions
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