As we are getting into the holiday season of turkey fryers I thought this would be relevant!
Well I asked myself this same question after needing to dispose of 15 gallons of peanut oil!!! We fry turkeys every once in a while for NC State tailgates and family gatherings over the holidays.
Easiest option: City of Raleigh has a curbside collection service during November 1st thru January 15th. There are certain guidelines you do have to follow but MOST importantly you have to call to schedule a pick up!!! The number is 919-996-6890. I missed this one little detail thus making my life a bit more difficult and you guessed it I missed this collection window.
So on to the next option (and useful information to have for other items too!)…Wake County has two multi-material recycling facilities. One is located in Apex off HWY 55 just after 540 at 6130 Old Smithfield Road, the other is in North Raleigh off of Durant Rd by Falls River subdivision at 9037 Deponie Drive. There is also one Convenience Center that accepts cooking oil that is the one located at 5051 Wendell Blvd./Business 64, Wendell. For a full list of what you can dispose and/or recycle at these sites check out this handy dandy brochure from Wake County.
I always enjoy trying/finding new things to do in the area so here I am lugging 15 gallons of peanut oil in my trunk down to Apex. I backed up into this bay after following signs to get there & you literally dump the oil into a vat. Kind of gross and an interesting learning experience.
All in all the research took longer than trying to dispose of the cooking oil correctly. Hope this helps make your life just a bit easier!