Anything that is made of organic material can usually be composted. A compost pile basically speeds up the natural breakdown of organic compounds in order to make humus for your soil, according to the University of Missouri. Composting your food waste is a good idea because it keeps the waste out of a landfill and creates nutrients and improves texture for your soil. Composting pecan meats can be a bit of a problem if you try to compost them whole. They need to be cut or ground so they will decompose properly.
Shred or powder the pecan meats in the nut shredder or food processor. They can still be chunky, just make sure they are no longer whole pieces of nutmeat.
Sprinkle the pecan meats on your compost pile. An enclosed compost pile is best for pecan meats so squirrels do not attack your pile.
Bury the pecan meats with about 4 to 5 inches of compost on top of it with the shovel or turn your compost barrel with the hand crank.
Turn your compost pile at least once every two weeks to increase the activity of the microorganisms that break down the compost pile.
Use your pecan meat compost on your garden in two to four months, once it is rich and black with an earthy smell.