egetable oil is used mainly by restaurants that fry a lot, like fast food chains. The best way to purify oil is to turn it into biofuel. This way, you'll be able to use your waste or sell it, so you'll even be profiting from your trash. There's also the public health angle. You don't need to dispose of your trash if it is no longer trash. The environment will also be relieved as waste vegetable oil is purified, reducing waste and at the same time, cutting down on the amount of petroleum required for transportation.<o:p>
Instructions<o:p>
Gather all your waste vegetable oil and pour it through an oil filter.<o:p>
Get 15 liters of the oil into a 5 gallon jug. Heat the oil to 100 degrees by placing the jugs in a steel pot and heat with a camp stove. If you have more than that, repeat these steps. Don't try to increase the amount of oil you're processing at one time.<o:p>
Buy methanol. Make sure that the pump to transfer it is made of nylon; otherwise, the alcohol will destroy the pump and maybe even cause a fire.<o:p>
Mix the lye and the methanol in a coffee can. The result will be sodium methoxide.<o:p>
Clean the bucket, and pour in the oil. Pour half of the mix of sodium methoxide into the bucket. Wait two minutes and then add the rest of the sodium methoxide.<o:p>
Stir the mix with a drill for mixing paint. Do this for 30 minutes. Place a lid on the bucket and let it rest for 12 hours. Open the lid, stir a bit more and then reclose it and allow the bucket to rest for a few days.<o:p>
Filter the biodiesel again with a restaurant filter bag. The biodiesel is ready to be used as fuel.
