Putting any kind of oil into a landfill can be bad for the environment. Luckily, oil can be recycled, you just have to make sure that it's handled correctly and then it can be used again in another form.
Used Cooking Oil
You might not think about the oil that the restaurant where you just bought your french fries used to fry those fries, but something has to be done with it. The restaurant can't just let that oil sit in the fryers forever and ever. Eventually, it would get really nasty and do terrible things to the taste of the food. Luckily it can be used in other ways. One way to recycle that oil and use it again is to use it as biofuel. Most restaurants have oil collection tanks. When they drain their fryers, all the oil is dumped into those tanks. Then a person who is going to make biofuel from that oil will come and collect that oil. They will take it back to process it. They will have to filter it out and then put it through several refining process to get what they need, but the oil will eventually be able to be turned into fuel that can be used in cars. Usually, this kind of fuel is best used in cars that take diesel fuel instead of other kinds of gas.
If you have a car, you are going to have used motor oil at some point in time. You may not think that this oil can be recycled, but it can be. If you change your oil yourself, you can collect it and put it into a container and then take it to a dealership or auto shop and ask them to dispose of it safely for you. They may charge a small fee, but generally, it isn't a problem. The auto shop or dealership will have a collection tank for all the oil. When it's full, the oil will be collected. That oil can be used again and again in different uses. For example, it may be cleaned and purified and then used again in motor oil. It can also be used as hydraulic fluid and in other lubrication settings. Used motor oil can also be added to an asphalt mix to help hold everything together to make it stronger.
Recycling oil is an important thing. It should never get just dumped in a landfill. Contact a company, like Denver Used oil , for more help.