I had a collection of waste oil the other week and the driver was saying that they now have to store the waste oil and then it is shipped to the Netherlands where they still burn it. They used to burn it in the UK in power stations but all the new emmisions laws have put a stop to it. I think in the next few years it is going to get expensive to dispose of waste oil. There was talk of a refinery being built to process waste oil into a fuel for power stations that was more enviro friendly, but I think that has been shelved due to laws.
Mark M