I assume you are eating these. Do you have to roast them or do anything else to make the edible? I ate a piece of one when I was a kid and thought it tasted like green tree bark.
I have two big trees in my yard and throw away 300-600 pounds of walnuts every year. I’d love to find a use for them.
Another option for you is to contact your local dnr forestry office to see if they are needing any for planting. They are usually short on some kind each fall. Not sure what they pay per bushel, but its better than just throwing away.
You don’t have to roast them, but I do. The dryer they are when you shell the the better they taste. It’s a unique flavor that can take getting used to. I use in bread and cookies.
So, how do you clean them? I have several bushel on the ground.
I watched a you tube vid. Drill a hole the size of the nut in a board, put the nut/w husk over hole hit/ w hammer and husk comes off. Clean and dry nut for a couple weeks, then shell. By the way, use rubber gloves if handling husks and nuts before the nuts are dry. Black walnut stain comes from the husks.
Years ago I used to collect some black walnuts, best way I found was to just step on the nut with the shell on and then pick it up leaving the shell behind. Gotta wear gloves or get the nut stain on ya. Then when you get home spread em out someplace where the squirrels can’t get to them. Seems those rascals can smell those goodies for quite a distance. The walnut meat is great for baking and eating just as it comes from the shell. When shelled they dry fast. Put them in a dry place where those tree rats can’t get to them. Ah those were the fun times I remember.