Motor oil residue has become one of the biggest contaminants for our plastics markets. The residue seeps into the porous plastic and cannot be removed through the washing process. It is almost impossible to rinse or wash a motor oil bottle since motor oil down the sink or storm drain causes a much larger environmental crisis than a plastic bottle in the trash. Many experts agree motor oil bottle in a pile of plastics could potentially contaminate a whole batch of otherwise-recyclable materials and cause the whole lot to be sent to the landfill. Therefore, recycling motor oil bottles is a real dasher of hopes for all the other bottles that really wanted to be recycled. Some government jurisdictions classify used motor oil as hazardous. It may contain additives such as rust inhibitors, contaminants such as heavy metals, potentially carcinogenic polycyclic aromatic compounds from the fuel combustion process, or glycol leaked from the cooling system.
Plastic bottles contain certain quantity of motor oil that ends in the trash, on the ground or into a lake, river, sewer, septic tank or storm drain. Used Motor oil is insoluble and contains heavy metals that can contaminate water supplies and harm ecosystems. It doesn’t take much to do a lot of damage. One gallon of used motor oil disposed of improperly can pollute 1 million gallons of drinking water – enough to supply 50 people for a year. One pint can produce an oil slick the size of a football field. Used motor oil filters, like used motor oil, are banned from disposal at municipal solid waste landfills of many states. Recycling used oil filters is important because filters can contain from 4 ounces to 1 quart of oil. Motor oil bottles can contain as much as 1 ounce of oil that should be recovered for recycling. The motor oil plastic bottles, in most cases, can not be recycled with other plastic bottles in many local recycling programs.
As more than 3 billion quart-size, high-density polyethylene motor oil containers head for U.S. landfills each year. U.S. motorists use about 150,000 tons of HDPE containers, leaving the insides coated with residual motor oil. While many used plastic containers can be recycled, containers contaminated with motor oil pose special problems. Most recycling programs cannot accept emptied motor oil bottles. Currently, to recycle used plastic containers with residual petroleum products, the containers usually must be cleaned first to remove the petroleum residue. While developers have created techniques to separate plastic and oil, these methods are often too expensive and too energy intensive to implement on a production scale. Using solvents to wash away the oil creates different waste products difficult to dispose of. Recycling partially cleaned oil containers for new oil bottle manufacturing has been one of the primary targets for the recovered HDPE plastic. However, the blow molding process used for manufacturing the bottles requires temperatures high enough to cause significant thermal degradation of the residual oil. And the bottles end up having a strong oily odor, which limits their marketability.
The goal of this project is to keep-away the motor oil in the used plastic bottles from ending up in the trash, ground, lakes, rivers, sewer, septic tank, or storm drain. This I plan to do by recycle and re-use the motor oil plastic bottles; through partial cleaning and refilling the plastic bottles with new motor oil and re-selling the motor oil to auto parts retailers, mechanic work-shops, Wal Mart, Costco, Sam's Club, and other retailers, wholesalers, and auto lubricant distributors.